MAVEN CDR May 23-25, 2011 Particles and Fields Package Critical Design Review May 23 -25, 2011 Christopher Smith, Thermal Engineer Mars Atmosphere and.

MAVEN CDR May 23-25, 2011 Particles and Fields Package Critical Design Review May 23 -25, 2011 Christopher Smith, Thermal Engineer Mars Atmosphere and Volatile EvolutioN (MAVEN) Mission

12-2 MAVEN PF ICDR May 23-25, 2011 Current Work Flow UCB builds individual instrument thermal models (DONE) –SWIA, STATIC, SEP, LPW, PFDPU, and SWEA LM provides sink temperatures for UCB boundary node spacecraft –UCB modifies instruments to meet requirements in all provided environments (DONE) UCB submits these models to spacecraft provider (LM) who incorporates them into the spacecraft thermal model. (DONE) LM returns spacecraft thermal model with integrated instrument models (DONE) –LM had some issues, so far it looks like they are all modeling problems with the reduced instrument models (IN PROGRESS) UCB uses spacecraft model to address any issues and returns updates to LM (IN PROGRESS) LM responsible for producing official predicts for mission

12-3 MAVEN PF ICDR May 23-25, 2011 Current Status Instrument Thermal Predicts (Complete) –Spacecraft model running at UCB with full instrument models integrated –Instrument updates on to be delivered to LM by 06/06/11 Deep Dip and Thruster heating analysis (Complete) –Spacecraft case sets include proper deep dip environments –Deep dips bound thruster environments 650 W/m 2 vs. 300 W/m 2 LPW boom thermal treatment changed (Complete) –Black Nickel originally specified but it alters the mechanical behavior of the boom –DAG 213 susceptible to AO degradation Single coat satisfies nominal mission life Thicker coat in evaluation for increased margin PFDPU detailed board analysis not complete (In Progress) –Analysis using distributed board properties complete –Initial modeling and lessons learned from RBSP indicate detailed board analysis should be performed on 4 highest dissipation boards Detailed Preamp to Whip thermal model needed (In Progress)

12-4 MAVEN PF ICDR May 23-25, 2011 Peer Review Action Items IdentifierAction Item DescriptionSource SSLPR-04 Are PFDPU tolerances sufficient for thermal connection to adapter plate Besuner SSLPR-08 Thermal environment of SMA wires Clemmons SSLPR-14 Overall PFP heater power allocation margin low Jelinsky SSLPR-17 Is Hysol 9309 epoxy sufficient for thermal coupling of PFDPU boards to frame Sheinman SSLPR-19 Verify S/C Interface meets thermal load requirement Sheinman

12-5 MAVEN PF ICDR May 23-25, 2011 Environmental Loads Values above from LM Case Sets Thruster flux combination of ACS and TCM firings Phase Solar Flux (W/m 2 )AlbedoIR (K)Aero MinMaxMinMaxMinMax Flux (W/m 2 ) Time (min) Launch131913870.290.3222126211351 Cruise6491480 0273 MOI6586640.18 148 Mars4907100.140.35204218 Deep Dip710 0.35 218 65010 Instrument Thruster Plume Flux (W/m 2 )Time (min) SWIA3010 SEP3010 LPW Stacer30010 LPW PreAmp3010 LPW Whip30010 SWEA30010

12-6 MAVEN PF ICDR May 23-25, 2011 Optical Properties All Materials approved by GSFC and JPL on previous missions Added testing for AO exposure Clear Alodine done by one plater with specified soak time. Extensive sampling with THEMIS. Occasional sampling with other missions. Wide BOL/EOL variance assumed in design Material Name BOLEOL Source εαα/εεα Clear Alodined Aluminum0.090.131.40.070.233.3Testing, UCB Specified Process Germanium Black Kapton0.810.490.60.780.530.7Heritage Testing Electroless Nickle0.070.395.6 STCH DAG 2130.740.921.2 0.520.651.3 Testing, EOL after 2.1e20 atoms/cm 2 AO fluence 0.0350.2426.9 Testing, EOL after 9.3e20 atoms/cm 2 AO fluence Ebanol C0.10.979.70.080.9311.6 Testing, EOL after 9.3e20 atoms/cm 2 AO fluence Titanium Nitride0.130.463.50.10.484.8Heritage Testing Black Nickle0.560.851.50.480.821.7 Testing, EOL after 9.3e20 atoms/cm 2 AO fluence Z-93-C550.950.1470.20.950.2 GSFC

12-7 MAVEN PF ICDR May 23-25, 2011 Thermophysical Properties Material Thermal Conductivity (W/mC) Specific Heat (J/kgC) Density (kg/m 3 ) Aluminum 60611509362770 Berrylium Copper1178250420 M55J3510871930 PCB (3 oz Copper)27,.256001850

12-8 MAVEN PF ICDR May 23-25, 2011 Thermal Limits Operational ( ˚ C) Non-Operational (˚C) Qual / Proto Flight Accept AFT Flight Accept Qual / Proto Flight Accept AFT Flight Accept Qual / Proto ComponentHOT COLD HOT COLD ULPW1_PREAMP807570-160-165-170807570-160-165-170 ULPW2_PREAMP807570-160-165-170807570-160-165-170 ULPW1_WHIP110105100-160-165-170110105100-160-165-170 ULPW2_WHIP110105100-160-165-170110105100-160-165-170 ULPW1_STACER110105100-170-175-180110105100-170-175-180 ULPW2_STACER110105100-170-175-180110105100-170-175-180 ULPW1_DEPLOYMENT_MECH807570-160-165-170807570-65-70-75 ULPW2_DEPLOYMENT_MECH807570-160-165-170807570-65-70-75 USEP1_BOARD1050-35-40-45706560-60-65-70 USEP2_BOARD1050-35-40-45706560-60-65-70 USTA_GRID110105100-100-105-110110105100-100-105-110 USTA_HEMISPHERE504540-25-30-35605550-25-30-35 USTA_TOF_BOARD504540-25-30-35605550-25-30-35 USTA_BOARD504540-25-30-35605550-25-30-35 USWE_GRID110105100-100-105-110110105100-100-105-110 USWE_HEMISPHERE504540-25-30-35504540-25-30-35 USWE_BASE504540-25-30-35504540-25-30-35 USWE_BOARD504540-25-30-35504540-25-30-35 USWI_GRID110105100-100-105-110110105100-100-105-110 USWI_HEMISPHERE504540-25-30-35504540-25-30-35 USWI_BOARD504540-25-30-35504540-25-30-35 UDPU_BOARD504540-25-30-35605550-25-30-35 UDPU_BOX504540-25-30-35605550-25-30-35 New Limits Based on RBSP: AFT's not in current ERD: New Limits:

12-9 MAVEN PF ICDR May 23-25, 2011 SWIA Thermal Model Germanium Black Kapton Blanket Blanket, 1.5 Sides Black Nickel Black Nickel + Grid (Not Shown) Conduction to SC Isolated 4 #8 Titanium with.25" G10 Isolator =.013 W/C each Power Dissipation: 1.85 W +/- 10% Mass: 2.5 kg

12-10 MAVEN PF ICDR May 23-25, 2011 STATIC Thermal Model Germanium Black Kapton Blanket Blanket, 1 Side Black Nickel Black Nickel + Grid (Not Shown) Conduction to APP Isolated 4 #8 Titanium with.25" G10 Isolator =.013 W/C each Power Dissipation: 3.96 W +/- 10% Mass: 2.9 kg

12-11 MAVEN PF ICDR May 23-25, 2011 SWEA Thermal Model Blanket 50 % Blanket 50% Black Nickel Black Nickel Power Disipation:.89 W +/- 10% Mass: 1.8 kg SC Balance Mass: ~ 17 kg Blanketed Balance Mass Conduction to SC Isolated 4 #8 Titanium with.25" G10 Isolator =.013 W/C each

12-12 MAVEN PF ICDR May 23-25, 2011 SEP Thermal Model Blanket White Paint, Z-93-C55 White Paint, Z-93-C55 Conduction to SC Isolated 4 #8 Titanium with.25" ULTEM 1000 Isolator =.011 W/C each Power Disipation: 0.16 W +/- 10% Mass:.63 kg

12-13 MAVEN PF ICDR May 23-25, 2011 PFDPU Thermal Model Boards to Frame Conduction: Epoxied to frame at lip =.386 W/C 8 #4 Screws (screw path only)=.1 W/C total Frame Conduction to Adapter Plate: 22 #6 screws 0.42 = 9.24 W/C Adapter Plate Conduction to SC: 6 #10 bolts 1.32 each = 7.92 W/C Power Disipation: 12.1 W +/- 10% Mass: 5.9 kg Black Nickel Simple Distributed Board Models

12-14 MAVEN PF ICDR May 23-25, 2011 LPW Thermal Model Stowed Stacer and DAD PreAmp Power: 0.10 W +/- 10% Whip Mass: 2.6kg Base Mech to Bracket Conductance: 6 #8 Ti with.25" G10 Isolator =.013 W/C each

12-15 MAVEN PF ICDR May 23-25, 2011 LPW Thermal Model Titanium Nitride Clear Alodine (Inside Spacecraft Body Blanket) DAG 213 Black Nickel

12-16 MAVEN PF ICDR May 23-25, 2011 Spacecraft Thermal Model Full Spacecraft Model Boundary Node Spacecraft All Surface Temps from LM Output MLI Unbound

12-17 MAVEN PF ICDR May 23-25, 2011 LM Launch/Initial Acquisition Case Definitions Case ID/Analysis CaseCase Description 1001_Launch_Prelaunch_Hot Prelaunch Hot, Steady-State 1002_Launch_Prelaunch_Cold Prelaunch Cold, Steady-State 1003_Launch_Boost_Hot Launch Hot, Liftoff to Payload Fairing Jettison 1013_Launch_Boost_Cold Launch Cold, Liftoff to Payload Fairing Jettison 1004A_Launch_Centaur_Open_Hot Launch Hot, PLF to S/C Separation, Open 1014A_Launch_Centaur_Open_Cold Launch Cold, S/C Sep to SA Deployment, Open 1005A_Launch_Centaur_Mid_Hot Launch Hot, PLF to S/C Separation, Mid 1015A_Launch_Centaur_Mid_Cold Launch Cold, PLF to S/C Separation,Mid 1006A_Launch_Centaur_Close_Hot Launch Hot, PLF to S/C Separation, Close 1016A_Launch_Centaur_Close_Cold Launch Cold, PLF to S/C Separation, Close 1004B_Launch_Sep_Initial Config_SA_Stowed_Open_Hot Launch Hot, S/C Sep to SA Deployment, Open 1014B_Launch_Sep_Initial Config_SA_Stowed_Mid_Hot Launch Cold, S/C Sep to SA Deployment, Open 1005B_Launch_Sep_Initial Config_SA_Stowed_Mid_Hot Launch Hot, S/C Sep to SA Deployment, Mid 1015B_Launch_Sep_Initial Config_SA_Stowed_Mid_Cold Launch Cold, S/C Sep to SA Deployment, Mid 1006B_Launch_Sep_Initial Config_SA_Stowed_Close_Hot Launch Hot, S/C Sep to SA Deployment, Close 1016B_Launch_Sep_Initial Config_SA_Stowed_Close_Cold Launch Cold, S/C Sep to SA Deployment,Close 1004C_Launch_Sep_Initial Config_SA_Deployed_Open_Hot Launch Hot, SA Deployed, Open 1014C_Launch_Sep_Initial Config_SA_Deployed_Open_Cold Launch Cold, SA Deployed, Open 1005C_Launch_Sep_Initial Config_SA_Deployed_Mid_Hot Launch Hot, SA Deployed, Mid 1015C_Launch_Sep_Initial Config_SA_Deployed_Mid_Cold Launch Cold, SA Deployed, Mid 1006C_Launch_Sep_Initial Config_SA_Deployed_Close_Hot Launch Hot, SA Deployed Close 1016C_Launch_Sep_Initial Config_SA_Deployed_Close_Cold Launch Cold, SA Deployed Close

12-18 MAVEN PF ICDR May 23-25, 2011 LM Cruise Case Definitions Case ID/Analysis CaseCase Description Solar Distance (AU) Solar Intensity (W/m 2 ) 2001_Hot_Early Cruise_096AU_60SOP Hot Early Cruise at 0.96 Solar Range, 60° Solar Offpoint0.961481 2002_Hot_Early Cruise_096AU_45SOP Hot Early Cruise at 0.96 Solar Range, 45° Solar Offpoint0.961481 2003_Hot_Middle Cruise_113AU_9SOP Hot Middle Cruise at 1.13 Solar Range, 9° Solar Offpoint1.131087 2011_Cold_Middle Cruise_123AU_9SOP Cold Middle Cruise at 1.23 Solar Range, 9° Solar Offpoint1.23917 2012_Cold_Late Cruise_144AU_9SOP Cold Late Cruise at 1.44 Solar Range, 9° Solar Offpoint1.44669 2013_Cold_Late Cruise_144AU_45SOP Cold Late Cruise at 1.44 Solar Range, 45° Solar Offpoint1.44669 2014_Cold_Early Cruise_099AU_60SOP Cold Early Cruise at 0.99 Solar Range, 60° Solar Offpoint 0.991416

12-19 MAVEN PF ICDR May 23-25, 2011 LM MOI Case Definitions Case ID/Analysis Case Case Description Solar Distance (AU) Solar Intensity per TSS (W/m 2 ) 3001_MOI_Hot_Open MOI Hot, Open1.426710 3002_MOI_Hot_Mid MOI Hot, Mid1.422710 3003_MOI_Hot_Close MOI Hot, Close1.420710 3004_MOI_Cold_Open MOI Cold, Open1.426490 3005_MOI_Cold_Mid MOI Cold, Mid1.422490 3006_MOI_Cold_Close MOI Cold, Close1.420490

12-20 MAVEN PF ICDR May 23-25, 2011 LM Science Case Definitions Case ID/Analysis Case Case Description Solar Distance (AU) Solar Intensity (W/m 2 ) 5001_Cold_Science_Earth Comm Cold Science, Earth Comm Orbit with Max Eclipse of 75 min.1.68490 5002_Cold_Science_Scenario 1 Cold Science, Scenario 1 Orbit with Max Eclipse1.68490 5003_Cold_Science_Scenario_2 Cold Science, Scenario 1a Orbit with Max Eclipse1.68490 5010_Hot_Science_Earth Comm Hot Science, Earth Comm Orbit with No Eclipse1.40710 5011_Hot_Science_Scenario_1 Hot Science, Scenario 1 Orbit with No Eclipse1.40710 5012_Hot_Science_Scenario_2 Hot Science, Scenario 1a Orbit with No Eclipse1.40710 Case ID/Analysis Case Case Description Solar Distance (AU) Solar Intensity (W/m 2 ) 6001_Hot_Science_Deep_Dip_+Z_FMH Hot Science, Deep Dip with Aeroheating FMH Applied in +Z Direction1.40710 6002_Hot_Science_Deep_Dip_-Z_FMH Hot Science, Deep Dip with Aeroheating FMH Applied in -Z Direction1.40710 6003_Hot_Science_Deep_Dip_+Y_FMH Hot Science, Deep Dip with Aeroheating FMH Applied in +Y Direction1.40710 6004_Hot_Science_Deep_Dip_-Y_FMH Hot Science, Deep Dip with Aeroheating FMH Applied in -Y Direction1.40710 6005_Hot_Science_Deep_Dip_+X_FMH Hot Science, Deep Dip with Aeroheating FMH Applied in +X Direction1.40710 6006_Hot_Science_Deep_Dip_-X_FMH Hot Science, Deep Dip with Aeroheating FMH Applied in -X Direction1.40710 Science Cases Deep Dip Cases

12-21 MAVEN PF ICDR May 23-25, 2011 Lockheed Thermal Memos #1 Ref:ERD Dec 2, 2010, Rev GLaunch SummaryCruise/MOI SummaryScience Summary Temperature Limits (°C )TemperatureNode#TemperatureNode #TemperatureNode# AFT (Op)FA (Op)PF (Op) AFT (Non- Op) PF (Non- Op)(°C) MinMaxMinMaxMinMaxMinMaxMinMaxMinMaxMinMaxMinMaxMinMaxMinMaxMinMax SEP-300-355-4010-5560-6570 20 5/105 -13431055-2118105 SEP modeling issue found, LM Notified and producing new predicts Ref:ERD H_Feb. 3, 2011Launch SummaryCruise Summary Temperature Limits (°C )TemperatureCase IDTemperatureCase ID AFT (Op)FA (Op)PF (Op)AFT (Non-Op)PF (Non-Op)(°C) MinMaxMinMaxMinMaxMinMaxMinMaxMinMaxMinMaxMinMaxMinMax STATIC-1535-2045-3050-3050-40609281006c1004b-112220132002 Ref:ERD H_Feb. 3, 2011MOI SummaryScience Summary Temperature Limits (°C )TemperatureCase IDTemperatureCase ID AFT (Op)FA (Op)PF (Op)AFT (Non-Op)PF (Non-Op)(°C) MinMaxMinMaxMinMaxMinMaxMinMaxMinMaxMinMaxMinMaxMinMax STATIC-1535-2045-3050-3050-4060-17203001a3003-14970017010

12-22 MAVEN PF ICDR May 23-25, 2011 Lockheed Thermal Memos #2 Ref:ERD Dec 2, 2010, Rev GLaunch SummaryCruise/MOI SummaryScience Summary Temperature Limits (°C )TemperatureNode#TemperatureNode #TemperatureNode# AFT (Op)FA (Op)PF (Op) AFT (Non- Op) PF (Non- Op)(°C) MinMaxMinMaxMinMaxMinMaxMinMaxMinMaxMinMaxMinMaxMinMaxMinMaxMinMax SWEA-2040-2545-3050-2040-3050 20 15 -172415 -17315 Ref:ERD Dec 2, 2010, Rev GLaunch SummaryCruise/MOI SummaryScience Summary Temperature Limits (°C )TemperatureNode#TemperatureNode #TemperatureNode# AFT (Op)FA (Op)PF (Op) AFT (Non- Op) PF (Non- Op)(°C) MinMaxMinMaxMinMaxMinMaxMinMaxMinMaxMinMaxMinMaxMinMaxMinMaxMinMax SWIA-2040-2545-3050-2040-3050202110 -18-1010 -18-510 Ref:ERD H_Feb. 3, 2011Launch SummaryCruise Summary Temperature Limits (°C )TemperatureCase IDTemperatureCase ID AFT (Op)FA (Op)PF (Op)AFT (Non-Op)PF (Non-Op)(°C) MinMaxMinMaxMinMaxMinMaxMinMaxMinMaxMinMaxMinMaxMinMax PFDPU-2040-2545-3050-2050-306017221014c1005a53220122001 Ref:ERD H_Feb. 3, 2011MOI SummaryScience Summary Temperature Limits (°C )TemperatureCase IDTemperatureCase ID AFT (Op)FA (Op)PF (Op)AFT (Non-Op)PF (Non-Op)(°C) MinMaxMinMaxMinMaxMinMaxMinMaxMinMaxMinMaxMinMaxMinMax PFDPU-2040-2545-3050-2050-30607203001a300313150037010

12-23 MAVEN PF ICDR May 23-25, 2011 Science Predicts Sheet:NodeInfo 5010_Hot_Sci_Earth_Comm 5011_Hot_Sci_Scenario_1 5012_Hot_Science_Scenario_2 5001_Cold_Sci_Earth Comm 5002_Cold_Sci_Scenario 1 5003_Cold_Science_Scenario 2 Parameter:Red HighRed Low Min Max Min Max Min Max Min Max Min Max Min Max Node/Group [°C] ULPW1_PREAMP70.0-160.0-11.00.16.417.39.820.6-85.5-21.4-84.6-20.1-93.5-19.0 ULPW2_PREAMP70.0-160.010.220.99.220.39.821.6-84.4-16.8-84.6-20.0-93.8-21.5 ULPW1_WHIP100.0-160.059.881.487.1104.489.5108.4-63.940.3-63.841.8-74.647.0 ULPW2_WHIP100.0-160.080.9106.185.3109.784.7109.3-62.947.2-63.143.7-74.344.6 ULPW1_STACER100.0-170.0-26.4-4.0-9.314.2-3.416.4-149.0-22.5-148.6-27.4-155.0-21.4 ULPW2_STACER100.0-170.00.712.6-3.513.5-1.517.3-148.5-16.8-149.0-26.5-155.2-19.2 ULPW1_DEPLOYMENT_MECH70.0-160.03.94.0 4.64.0 3.33.83.34.23.23.5 ULPW2_DEPLOYMENT_MECH70.0-160.04.34.44.04.63.94.03.13.43.24.03.13.4 USEP1_APERTURE_SUN0.0-75.0-41.0-34.9-38.5-32.4-38.4-32.0-55.0-44.1-55.2-44.2-55.7-43.9 USEP2_APERTURE_SUN0.0-75.0-37.0-29.6-39.6-30.0-39.3-31.8-57.3-44.5-57.7-47.1-58.2-45.3 USEP1_APERTURE_ANTI_SUN0.0-75.0-41.2-35.3-38.8-32.6-38.7-32.2-55.2-44.3-55.4-44.3-55.9-44.1 USEP2_APERTURE_ANTI_SUN0.0-75.0-37.2-29.8-39.7-30.1-39.4-31.8-57.4-44.6-57.8-47.1-58.3-45.3 USEP1_BOARD0.0-35.0-30.3-30.1-30.2-29.8-30.2-29.6-31.1-30.5-31.1-30.5-31.1-30.5 USEP2_BOARD0.0-35.0-30.2-28.5-30.3-28.9-30.3-29.5-31.2-30.6-31.2-30.7-31.2-30.6 USEP1_SHIELD100.0-100.0-46.0-30.5-46.4-31.6-46.6-31.1-76.9-47.7-77.2-54.0-77.9-49.1 USEP2_SHIELD100.0-100.0-37.8-30.2-40.0-30.5-39.8-31.7-58.4-45.2-58.8-48.0-59.3-45.9 USTA_GRID100.0-100.0-20.2-16.23.68.310.214.3-33.6-20.8-34.0-21.3-33.8-18.8 USTA_HEMISPHERE40.0-25.0-20.1-16.13.58.610.414.6-33.7-20.6-34.0-21.2-33.9-18.6 USTA_TOF_BOARD40.0-25.0-10.2-8.411.512.314.216.7-20.4-16.4-20.6-17.1-20.3-14.9 USTA_BOARD40.0-25.0-8.7-6.912.713.715.418.0-19.2-15.3-19.2-16.0-19.0-13.9 USWE_GRID100.0-100.0-16.3-12.6-34.3-21.4-34.3-29.9-35.6-30.7-35.7-23.5-35.7-32.2 USWE_HEMISPHERE40.0-25.0-12.7-11.4-21.7-19.2-21.7-20.9-22.1-21.3-22.1-20.0-22.1-21.5 USWE_BASE40.0-25.0-12.5-11.2-21.2-19.1-21.2-20.6-21.6-21.0-21.6-20.0-21.6-21.2 USWE_BOARD40.0-25.0-12.1-10.8-20.8-18.8-20.8-20.4-21.2-20.7-21.2-19.7-21.2-20.8 USWI_GRID100.0-100.0-12.4-10.8-1.51.9-2.8-1.5-22.4-18.7-22.4-15.9-22.4-19.5 USWI_HEMISPHERE40.0-25.0-12.6-10.9-1.81.7-3.1-1.7-23.0-18.8-23.0-16.0-23.0-19.7 USWI_BOARD40.0-25.0-11.8-10.22.3-2.5-1.2-20.3-18.2-20.3-15.4-20.3-19.2 UDPU_BOARD40.0-25.020.321.022.122.722.222.75.97.06.37.35.56.6 UDPU_BOX40.0-25.019.820.421.622.121.622.15.46.55.86.85.06.1 < 5 From Limit : Over Limit : Heater Control

12-24 MAVEN PF ICDR May 23-25, 2011 Science Plot, Stacer

12-25 MAVEN PF ICDR May 23-25, 2011 Science Case Heater Power Heater ID Cold_Science_Earth Comm Cold_Science_Scenario 1 Cold_Science_Scenario_2 Hot_Science_Earth_Comm Hot_Science_Scenario_1Hot_Science_Scenario_2 MAX Orbit Ave (W) Peak (W) Orbit Ave (W) Peak (W) Orbit Ave (W) Peak (W) Orbit Ave (W) Peak (W) Orbit Ave (W) Peak (W) Orbit Ave (W) Peak (W) Orbit Ave (W) Peak (W) Heater Size 75% Duty Cycle Heater Size 50% Duty Cycle UCB_DPU_SURV 0.0 UCB_SEP1_SURV 0.0 UCB_SEP1_OP 1.50.01.50.01.50.00.60.00.30.00.30.01.50.02.03.1 UCB_SEP2_SURV 0.0 UCB_SEP2_OP 1.60.01.70.01.70.00.20.00.40.00.30.01.70.02.33.4 UCB_STA_SURV 0.0 UCB_STA_OP 0.0 0.10.0 0.10.0 UCB_SWE_SURV 0.0 UCB_SWE_OP 5.50.05.10.06.10.0 3.80.04.40.06.10.08.112.2 UCB_SWI_SURV 0.0 UCB_SWI_OP 1.70.01.80.02.60.0 2.60.03.45.2 UCB_LPW1_DEP 0.0 UCB_LPW2_DEP 0.0 Total PF Instrument Heater Power 10.40.010.20.011.90.00.70.04.50.05.00.05.011.915.923.8

12-26 MAVEN PF ICDR May 23-25, 2011 PFDPU Analysis Create detailed thermal model of high dissipation boards –Include actual ground plane layout –Include all components dissipating more than.1 W Current simple distributed property model is a good start Thermal / Ground planes need to grow as much as possible and overlap as much as possible. Thermal planes need to be brought to the edge of the board –Maintain electrical isolation while improving thermal connections much as possible Sheet: Nominal_50CPeak_50C Time Step: SS Node/Group Power [W]Temp [°C]Power [W]Temp [°C] Max_BEB 0.656.1 1.563.2 Max_DFB 1.659.4 4.069.8 Max_MAG2 1.159.3 1.566.6 Max_MAG1 1.159.0 1.565.6 Max_DAP2 0.758.4 1.665.9 Max_DAP1 0.759.0 1.667.4 Max_IIB 2.861.5 5.071.1 Max_DCB2 0.056.0 0.061.8 Max_REG2 0.055.2 0.061.0 Max_DCB1 1.258.0 3.267.8 Max_REG1 2.359.2 4.768.9 Total:12.124.5

12-27 MAVEN PF ICDR May 23-25, 2011 LPW Stacer LPW Stacer needs to be black to help reject deep dip heat load Black Nickel was identified as a candidate and sent out for AO testing and it did well However when it was applied to a stacer it modified its mechanical behavior DAG 213 was identified as an alternative –We have lots of experience with it and has been used on stacers before DAG 213 is susceptible to AO –Testing shows it meets requirements for nominal mission life –Investigating a thicker coat to add margin –Plan to run a half-DAG Stacer model as well –Current Deep Dip Stacer Max Temp = 55 C MAVEN Atomic Oxygen testing Data Emittance Solar a/ea/e Sample200K300K400K Absorptance200K300K400K DAG 213 Before AO0.7220.7440.7620.9211.281.241.21 DAG 213 After 2.1E+20 atoms/cm2 AO fluence0.4930.5280.5540.6511.321.231.18 DAG 213 After 9.3E+20 atoms/cm2 AO fluence0.0410.0350.0280.2425.906.918.64

12-28 MAVEN PF ICDR May 23-25, 2011 LPW Whip LPW Whip is coated in titanium nitride,  =.46,  =.13 EOL –Modeling error had this surface high emissivity until recently Thin wall titanium tube that is well isolated from preamp Whip doesn’t mind these temperatures but a detailed thermal model of the whip to preamp connection is required to be sure the preamp board is unaffected Whip.016” Titanium Wall Tube Whip End Titanium Isolators PEEK Whip Nut Bronze Hypertronics Socket PreAmp Board

12-29 MAVEN PF ICDR May 23-25, 2011 LPW Launch Case (System Model) System Model is worst case for preamp temperature –It has a simple high (100 W/mC) contact conductance between the whip tube and preamp body –Preamp cap not modeled Heat Flows Sorted by Type (Asc), then Heat (Asc) Node jTypeCondTemp jHeat j ULPWTIP2Lin3.870149.57-1.15 ULPWWHIP2Lin1.9949166.550.31 SPACERad0.002253-270.45-1.51 MLIRad0.00154912.62-0.46 LM_SWEARad2.54E-0537.70-0.01 TRACKERRad1.05E-0522.460.00 ULPWMECH2Rad2.21E-0540.840.00 ULPWTIP2Rad4.73E-0549.570.00 ULPWWHIP2Rad4.23E-06166.550.00 CENTAURRad5.54E-0561.870.01 SUMMARY:InOut Conduction0.311.15 Radiation0.011.98 Source3.41- Sum3.723.13

12-30 MAVEN PF ICDR May 23-25, 2011 LPW Launch Case (Detailed Model) Simple spreadsheet model of isolation shows a highly isolated path Detailed Model (SolidWorks) contains more detail also shows High isolation LPW Whip to PreAmp Thickness (m) X-Sectional Area (m 2 ) Material Conductivity (W/mK) Conductance (W/K) Resistance (K/W) 0.05086.4516E-06Titanium Tube100.001787.402 0.0222257.58708E-06Titanium Tube End100.003292.932 0.02395224.0129E-06Bronze Whip Nut870.01568.607 00 0.0011148.941

12-31 MAVEN PF ICDR May 23-25, 2011 Backup Slides Back Up Slides

12-32 MAVEN PF ICDR May 23-25, 2011 Requirements Documents Performance Requirements Document –MAVEN-program-plan-appendix-v28_L1Req.doc (Level 1) –MAVEN-PM-RQMT-0005, Mission Requirements (Level 2) –MAVEN-PFIS-RQMT-0016, PFP Requirements (Level 3) –MAVEN-PF-STATIC-001A-Requirements_&_Specifications.xls (Level 4) Mission Assurance Requirements –MAVEN-PM-RQMT-0006, Mission Assurance Requirements –MAVEN_PF_QA_002, PFP Mission Assurance Implementation Plan Mission Operations –MAVEN-MOPS-RQMT-0027, Mission Operations Requirements Environmental Requirements Document –MAVEN-SYS-RQMT-0010 Spacecraft to PFP ICD –MAVEN-SC-ICD-0007

12-33 MAVEN PF ICDR May 23-25, 2011 Launch Open Hot Predicts Sheet:NodeInfo 1001_Prelaunch_Hot 1002_Prelaunch_Countdown_Hot 1005_Launch_Boost_Hot 1007_Launch_Centaur_Open_Hot 1010_Sep_SA_Stow_Open_Hot 1013_Sep_SA_Deployed_Open_Hot Parameter:Red HighRed Low Min Max Min Max Min Max Min Max Min Max Min Max Node/Group [°C] ULPW1_PREAMP70.0-160.032.4 33.533.233.724.056.518.037.716.137.7 ULPW2_PREAMP70.0-160.032.6 33.733.534.026.157.318.938.112.338.1 ULPW1_WHIP100.0-160.028.9 31.431.131.9 204.137.4128.7 143.4 ULPW2_WHIP100.0-160.028.7 31.431.131.9 219.454.2188.996.2188.9 ULPW1_STACER100.0-170.038.4 38.5 38.238.837.638.837.338.8 ULPW2_STACER100.0-170.039.2 39.339.039.638.339.637.939.6 ULPW1_DEPLOYMENT_MECH70.0-65.038.6 38.438.838.138.837.838.8 ULPW2_DEPLOYMENT_MECH70.0-65.039.3 39.139.638.939.638.439.6 USEP1_APERTURE_SUN60.0-75.030.8 32.932.733.58.233.5-7.69.94.810.6 USEP2_APERTURE_SUN60.0-75.030.0 32.532.033.17.533.1-9.114.0-2.714.0 USEP1_APERTURE_ANTI_SUN60.0-75.030.8 32.932.633.68.333.6-8.110.12.610.1 USEP2_APERTURE_ANTI_SUN60.0-75.029.9 32.532.033.27.633.2-9.214.2-2.714.2 USEP1_BOARD60.0-60.030.8 31.0 31.121.831.115.821.815.921.8 USEP2_BOARD60.0-60.030.0 30.1 30.321.830.315.921.814.521.8 USEP1_SHIELD100.0-100.030.0 35.132.935.6-5.735.6-30.69.8-2.09.8 USEP2_SHIELD100.0-100.029.9 33.331.833.95.433.9-10.915.1-3.015.1 USTA_GRID100.0-100.028.4 29.028.829.126.740.428.540.432.040.4 USTA_HEMISPHERE50.0-25.028.4 28.928.729.026.740.128.740.131.840.1 USTA_TOF_BOARD50.0-25.028.4 28.5 28.627.534.131.435.333.035.8 USTA_BOARD50.0-25.028.4 28.6 28.726.935.530.735.532.435.6 USWE_GRID100.0-100.028.9 30.429.730.726.261.519.439.4 44.1 USWE_HEMISPHERE40.0-25.028.9 29.329.229.427.734.927.132.731.333.0 USWE_BASE40.0-25.028.9 29.1 29.228.033.628.032.731.132.7 USWE_BOARD40.0-25.028.9 29.1 29.228.033.428.332.831.032.8 USWI_GRID100.0-100.029.9 30.330.230.528.239.526.635.330.135.3 USWI_HEMISPHERE40.0-25.029.8 30.630.230.727.239.525.534.429.934.6 USWI_BOARD40.0-25.029.9 30.1 30.328.937.728.135.729.935.7 UDPU_BOARD50.0-25.039.3 39.139.338.839.1 39.2 UDPU_BOX50.0-25.039.3 39.039.338.739.0 39.3

12-34 MAVEN PF ICDR May 23-25, 2011 Launch Open Hot Plot, Whip

12-35 MAVEN PF ICDR May 23-25, 2011 Launch Mid Cold Predicts Sheet:NodeInfo 1003_Prelaunch_Cold 1004_Prelaunch_Countdown_Cold 1005_Launch_Boost_Hot 1008_Launch_Centaur_Mid_Hot 1011_Sep_SA_Stow_Mid_Hot 1014_Sep_SA_Deployed_Mid_Hot Parameter:Red HighRed Low Min Max Min Max Min Max Min Max Min Max Min Max Node/Group [°C] ULPW1_PREAMP70.0-160.012.3 16.233.233.718.259.323.143.118.043.1 ULPW2_PREAMP70.0-160.012.6 16.433.534.018.856.820.441.813.541.8 ULPW1_WHIP100.0-160.010.6 19.031.131.9 202.595.6152.2142.3152.2 ULPW2_WHIP100.0-160.010.7 19.331.131.929.7176.876.8127.881.2127.8 ULPW1_STACER100.0-170.015.4 15.538.5 38.138.737.738.737.338.7 ULPW2_STACER100.0-170.016.1 16.239.239.338.839.538.439.537.839.5 ULPW1_DEPLOYMENT_MECH70.0-65.015.4 15.538.6 38.338.638.238.737.838.7 ULPW2_DEPLOYMENT_MECH70.0-65.016.1 16.239.3 39.039.438.839.438.439.4 USEP1_APERTURE_SUN60.0-75.011.3 17.632.733.54.733.50.07.63.48.1 USEP2_APERTURE_SUN60.0-75.010.9 18.132.033.11.133.1-4.18.7-4.18.7 USEP1_APERTURE_ANTI_SUN60.0-75.011.3 17.732.633.64.433.6-1.67.71.37.7 USEP2_APERTURE_ANTI_SUN60.0-75.010.9 18.232.033.21.233.2-4.18.8-4.18.8 USEP1_BOARD60.0-60.011.3 11.731.031.121.531.116.021.515.121.5 USEP2_BOARD60.0-60.010.9 11.430.130.320.230.314.520.212.620.2 USEP1_SHIELD100.0-100.010.8 25.032.935.6-7.235.6-16.29.2-3.19.3 USEP2_SHIELD100.0-100.010.8 19.531.833.9-1.233.9-4.48.8-4.78.8 USTA_GRID100.0-100.011.1 12.828.829.124.835.228.335.228.335.2 USTA_HEMISPHERE50.0-25.011.1 12.728.729.024.935.128.035.128.135.1 USTA_TOF_BOARD50.0-25.011.1 11.728.528.626.129.728.830.929.131.3 USTA_BOARD50.0-25.011.1 12.028.628.725.831.328.431.428.731.4 USWE_GRID100.0-100.010.0 14.129.730.723.759.931.539.7 44.1 USWE_HEMISPHERE40.0-25.010.0 11.229.229.426.233.930.032.231.032.6 USWE_BASE40.0-25.010.0 10.729.129.226.833.229.832.430.832.4 USWE_BOARD40.0-25.010.0 10.629.129.227.032.829.732.530.732.5 USWI_GRID100.0-100.010.5 12.130.230.526.437.530.235.830.435.9 USWI_HEMISPHERE40.0-25.010.5 12.630.230.725.437.229.635.730.135.7 USWI_BOARD40.0-25.010.5 11.430.130.326.535.230.035.230.235.2 UDPU_BOARD50.0-25.016.4 39.3 38.939.338.738.9 39.0 UDPU_BOX50.0-25.016.4 16.539.3 38.939.338.738.9 39.0

12-36 MAVEN PF ICDR May 23-25, 2011 Launch Mid Cold Plot, Whip

12-37 MAVEN PF ICDR May 23-25, 2011 Launch Close Cold Predicts Sheet:NodeInfo 1003_Prelaunch_Cold 1004_Prelaunch_Countdown_Cold 1005_Launch_Boost_Hot 1009_Launch_Centaur_Close_Hot 1012_Sep_SA_Stow_Close_Hot 1015_Sep_SA_Deployed_Close_Hot Parameter:Red HighRed Low Min Max Min Max Min Max Min Max Min Max Min Max Node/Group [°C] ULPW1_PREAMP70.0-160.012.3 16.233.233.713.441.718.637.513.737.5 ULPW2_PREAMP70.0-160.012.6 16.433.534.014.442.717.438.010.538.0 ULPW1_WHIP100.0-160.010.6 19.031.131.9 173.392.7158.6148.9158.6 ULPW2_WHIP100.0-160.010.7 19.331.131.9 151.368.5132.993.4132.9 ULPW1_STACER100.0-170.015.4 15.538.5 37.638.536.737.736.337.7 ULPW2_STACER100.0-170.016.1 16.239.239.338.439.337.538.536.938.5 ULPW1_DEPLOYMENT_MECH70.0-65.015.4 15.538.6 37.838.637.237.836.837.8 ULPW2_DEPLOYMENT_MECH70.0-65.016.1 16.239.3 38.639.338.038.637.538.6 USEP1_APERTURE_SUN60.0-75.011.3 17.632.733.5-2.233.5-6.1-0.8 1.3 USEP2_APERTURE_SUN60.0-75.010.9 18.132.033.1-5.933.1-9.7-2.7-7.2-2.7 USEP1_APERTURE_ANTI_SUN60.0-75.011.3 17.732.633.6-2.933.6-7.4-1.2-1.9-0.9 USEP2_APERTURE_ANTI_SUN60.0-75.010.9 18.232.033.2-5.833.2-9.8-2.6-7.2-2.6 USEP1_BOARD60.0-60.011.3 11.731.031.119.531.112.819.512.019.5 USEP2_BOARD60.0-60.010.9 11.430.130.318.030.311.018.09.118.0 USEP1_SHIELD100.0-100.010.8 25.032.935.6-23.235.6-24.3-5.2 -3.6 USEP2_SHIELD100.0-100.010.8 19.531.833.9-8.133.9-10.5-3.7-7.7-3.3 USTA_GRID100.0-100.011.1 12.828.829.119.829.318.722.919.822.9 USTA_HEMISPHERE50.0-25.011.1 12.728.729.019.929.018.723.219.523.2 USTA_TOF_BOARD50.0-25.011.1 11.728.528.621.428.719.321.620.121.8 USTA_BOARD50.0-25.011.1 12.028.628.721.028.719.021.919.821.9 USWE_GRID100.0-100.010.0 14.129.730.721.053.026.535.0 40.6 USWE_HEMISPHERE40.0-25.010.0 11.229.229.424.229.625.527.827.228.2 USWE_BASE40.0-25.010.0 10.729.129.224.629.325.427.926.927.9 USWE_BOARD40.0-25.010.0 10.629.129.224.829.325.327.726.727.7 USWI_GRID100.0-100.010.5 12.130.230.521.931.423.628.524.328.7 USWI_HEMISPHERE40.0-25.010.5 12.630.230.721.430.723.229.224.129.2 USWI_BOARD40.0-25.010.5 11.430.130.322.630.323.327.524.027.6 UDPU_BOARD50.0-25.016.4 39.3 38.739.338.338.738.538.7 UDPU_BOX50.0-25.016.4 16.539.3 38.639.338.338.638.538.6

12-38 MAVEN PF ICDR May 23-25, 2011 Launch Close Cold Plot, Whip

12-39 MAVEN PF ICDR May 23-25, 2011 Cruise Predicts Sheet:NodeInfo 2001_Hot_Early_Cruise_96AU_62 2002_Hot_Early_Cruise_96AU_45 2003_Hot_Mid_Cruise_113AU_9 2014_Cold_Early_Cruise_99AU_62 2011_Cold_Mid_Cruise_123AU_9 2012_Cold_Late_Cruise_144AU_9 2013_Cold_Late_Cruise_144AU_45 Parameter:Red HighRed Low Min Max Min Max Min Max Min Max Min Max Min Max Min Max Node/Group [°C] ULPW1_PREAMP70.0-160.0-27.2 -8.3 -36.3 -31.8 -39.5 -43.2 -30.5 ULPW2_PREAMP70.0-160.0-39.9 -39.3 2.0 -44.0 5.2 -15.7 -45.7 ULPW1_WHIP100.0-160.0154.5 159.1 137.1 124.3 102.9 57.6 47.7 ULPW2_WHIP100.0-160.079.7 126.8 18.6 49.6 -2.9 -21.4 31.0 ULPW1_STACER100.0-170.04.1 4.4 3.1 3.3 2.8 2.2 2.5 ULPW2_STACER100.0-170.03.5 3.4 3.8 2.6 3.5 2.6 1.8 ULPW1_DEPLOYMENT_MECH70.0-65.04.8 4.9 4.3 4.4 4.2 3.9 4.0 ULPW2_DEPLOYMENT_MECH70.0-65.04.6 4.5 4.1 4.4 4.0 3.7 USEP1_SHIELD100.0-100.0-9.3 -17.7 -34.5 -21.4 -31.8 -54.6 -60.1 USEP2_SHIELD100.0-100.0-22.2 -17.3 -35.6 -31.8 -30.6 -51.2 -55.3 USEP1_APERTURE_SUN60.0-75.0-7.7 -3.8 -30.6 -19.4 -28.1 -48.6 -47.7 USEP2_APERTURE_SUN60.0-75.0-22.4 -17.5 -35.4 -32.0 -30.6 -51.2 -55.2 USEP1_APERTURE_ANTI_SUN60.0-75.0-9.9 -6.3 -30.9 -21.1 -28.4 -48.8 USEP2_APERTURE_ANTI_SUN60.0-75.0-22.4 -17.5 -35.4 -32.1 -30.7 -51.2 -55.3 USEP1_BOARD60.0-60.0-5.3 -1.5 -26.8 -17.4 -25.0 -45.4 -45.2 USEP2_BOARD60.0-60.0-19.0 -14.2 -31.7 -29.4 -27.7 -48.1 -52.3 USTA_GRID100.0-100.025.3 39.1 24.8 15.2 29.9 3.3 -7.3 USTA_HEMISPHERE50.0-25.025.1 38.7 24.5 15.1 29.5 3.1 -7.4 USTA_TOF_BOARD50.0-25.025.9 39.3 24.9 15.8 29.8 3.6 -6.8 USTA_BOARD50.0-25.027.2 40.4 25.9 16.8 30.5 4.5 -5.7 USWE_GRID100.0-100.037.6 42.1 20.6 21.9 26.6 -7.5 -15.0 USWE_HEMISPHERE40.0-25.019.4 27.9 17.0 3.9 21.9 -10.6 -20.0 USWE_BASE40.0-25.018.9 27.4 16.8 3.3 21.6 -10.7 -20.1 USWE_BOARD40.0-25.018.9 27.5 17.1 3.3 21.9 -10.5 -20.0 USWI_GRID100.0-100.09.5 24.8 6.6 -1.3 9.6 -16.8 -19.9 USWI_HEMISPHERE40.0-25.09.2 24.5 6.3 -1.5 9.4 -17.0 -20.2 USWI_BOARD40.0-25.09.7 24.7 6.7 -1.2 9.2 -16.7 -19.4 UDPU_BOARD50.0-25.040.0 38.7 27.5 29.2 21.9 12.9 14.1 UDPU_BOX50.0-25.039.6 38.2 27.0 28.9 21.5 12.4 13.7 :< 5 From Limit : Over Limit : Heater Control

12-40 MAVEN PF ICDR May 23-25, 2011 MOI Predicts Sheet:NodeInfo 3001_MOI_Hot_Open 3002_MOI_Hot_Close 3003_MOI_Cold_Open 3004_MOI_Cold_Close Parameter:Red HighRed Low Min Max Min Max Min Max Min Max Node/Group [°C] ULPW1_PREAMP70.0-160.0-28.617.7-28.617.9-32.46.6-32.46.3 ULPW2_PREAMP70.0-160.0-42.812.0-42.711.7-46.62.6-46.61.7 ULPW1_WHIP100.0-160.073.797.478.390.447.767.647.764.0 ULPW2_WHIP100.0-160.044.7117.344.7117.325.988.823.586.2 ULPW1_STACER100.0-170.02.94.62.94.62.43.92.43.9 ULPW2_STACER100.0-170.02.44.22.44.21.83.31.83.3 ULPW1_DEPLOYMENT_MECH70.0-65.04.24.94.24.94.04.54.04.5 ULPW2_DEPLOYMENT_MECH70.0-65.04.04.74.04.73.74.33.74.3 USEP1_APERTURE_SUN60.0-75.0-52.1-39.7-51.8-39.5-63.4-46.9-63.4-46.7 USEP2_APERTURE_SUN60.0-75.0-51.8-49.0-52.5-49.3-57.3-54.9-57.7-54.8 USEP1_APERTURE_ANTI_SUN60.0-75.0-52.2-40.8-52.0-40.6-63.5-48.0-63.6-47.7 USEP2_APERTURE_ANTI_SUN60.0-75.0-51.8-49.0-52.4-49.2-57.3-54.9-57.7-54.9 USEP1_BOARD60.0-60.0-44.8-37.1-44.8-37.1-53.5-45.2-53.5-45.2 USEP2_BOARD60.0-60.0-49.1-46.1-49.4-46.1-55.1-52.3-55.1-52.3 USEP1_SHIELD100.0-100.0-68.8-50.5-68.8-49.6-81.3-56.0-81.4-55.5 USEP2_SHIELD100.0-100.0-52.7-49.6-53.4-49.6-58.1-54.8-58.5-54.8 USTA_GRID100.0-100.0-13.21.8-13.01.8-21.5-7.3-21.5-7.2 USTA_HEMISPHERE50.0-25.0-13.01.7-12.81.7-21.3-7.4-21.3-7.4 USTA_TOF_BOARD50.0-25.0-11.32.4-11.12.4-19.6-6.8-19.6-6.8 USTA_BOARD50.0-25.0-11.73.7-11.53.7-20.0-5.7-20.0-5.7 USWE_GRID100.0-100.0-13.1-4.5-13.0-3.9-15.1-11.5-15.2-11.1 USWE_HEMISPHERE40.0-25.0-19.8-14.8-19.7-14.3-20.0-18.5-20.0-18.3 USWE_BASE40.0-25.0-20.1-15.4-20.0-14.9-20.3-18.9-20.3-18.7 USWE_BOARD40.0-25.0-20.1-15.5-20.1-15.1-20.3-19.0-20.3-18.8 USWI_GRID100.0-100.0-17.1-8.9-17.0-8.7-20.3-15.0-20.3-15.0 USWI_HEMISPHERE40.0-25.0-17.1-8.8-17.0-8.5-20.4-14.9-20.4-14.9 USWI_BOARD40.0-25.0-17.3-9.3-17.2-9.1-20.4-15.3-20.4-15.2 UDPU_BOARD50.0-25.014.623.414.623.47.114.17.214.1 UDPU_BOX50.0-25.014.522.814.522.87.013.77.113.7 :< 5 From Limit : Over Limit : Heater Control

12-41 MAVEN PF ICDR May 23-25, 2011 MOI Plot, Whip

12-42 MAVEN PF ICDR May 23-25, 2011 Deep Dip Predicts Sheet:NodeInfo 6001_Hot_Sci_Deep_Dip_+Z 6002_Hot_Sci_Deep_Dip_-Z 6003_Hot_Sci_Deep_Dip_+Y 6004_Hot_Sci_Deep_Dip_-Y 6005_Hot_Sci_Deep_Dip_+X 6006_Hot_Sci_Deep_Dip_-X Parameter:Red HighRed Low Min Max Min Max Min Max Min Max Min Max Min Max Node/Group [°C] ULPW1_PREAMP70.0-160.09.435.19.436.09.417.49.429.99.434.89.434.9 ULPW2_PREAMP70.0-160.0-1.312.9-1.312.9-1.312.9-8.312.9-1.312.9-1.312.9 ULPW1_WHIP100.0-160.088.7171.388.7174.080.9104.388.7148.088.7170.888.7170.3 ULPW2_WHIP100.0-160.053.3128.753.3129.753.395.244.495.253.3122.653.3123.6 ULPW1_STACER100.0-170.0-22.353.3-22.449.0-25.46.5-23.636.0-23.147.2-23.148.4 ULPW2_STACER100.0-170.0-42.323.1-42.319.6-42.34.1-42.44.1-42.314.6-42.315.9 ULPW1_DEPLOYMENT_MECH70.0-160.04.04.44.04.64.04.44.04.54.04.44.04.8 ULPW2_DEPLOYMENT_MECH70.0-160.03.94.24.04.53.94.33.94.23.94.23.94.7 USEP1_APERTURE_SUN0.0-75.0-38.2-25.4-38.3-30.0-38.3-27.8-38.4-32.0-38.3-23.1-38.3-24.2 USEP2_APERTURE_SUN0.0-75.0-40.4-34.0-40.5-35.7-41.5-35.8-40.6-35.8-40.5-32.3-40.6-35.0 USEP1_APERTURE_ANTI_SUN0.0-75.0-38.5-25.0-38.6-29.6-38.6-26.9-38.7-31.6-38.6-22.5-38.6-23.2 USEP2_APERTURE_ANTI_SUN0.0-75.0-40.5-34.1-40.6-35.7-41.6-35.9-40.6-35.8-40.6-32.4-40.7-35.1 USEP1_BOARD0.0-35.0-30.2-28.0-30.2-29.1-30.2-28.6-30.2-29.6-30.2-27.6-30.2-27.8 USEP2_BOARD0.0-35.0-30.3-30.1-30.3-30.1-30.4-30.1-30.3-30.1-30.3-30.0-30.3-30.1 USEP1_SHIELD100.0-100.0-45.8-23.9-45.8-20.6-45.9-32.1-45.9-32.3-45.8-33.9-45.9-36.4 USEP2_SHIELD100.0-100.0-41.0-33.6-40.9-36.0-41.9-36.1-41.0-36.0-41.0-32.9-41.0-35.8 USTA_GRID100.0-100.07.917.47.917.79.013.29.113.611.018.88.611.1 USTA_HEMISPHERE40.0-25.08.017.48.017.59.212.89.313.411.018.68.710.9 USTA_TOF_BOARD40.0-25.012.314.712.314.79.812.59.912.611.717.79.211.2 USTA_BOARD40.0-25.013.615.913.515.911.113.811.213.913.119.410.512.6 USWE_GRID100.0-100.0-34.2-13.1-34.28.7-34.20.7-34.216.6-34.24.4-34.26.3 USWE_HEMISPHERE40.0-25.0-21.7-12.6-21.7-11.3-21.7-9.1-21.7-11.5-21.7-9.8-21.7-10.2 USWE_BASE40.0-25.0-21.2-12.7-21.2-11.5-21.2-9.3-21.2-11.6-21.2-10.0-21.2-10.3 USWE_BOARD40.0-25.0-20.8-12.4-20.8-11.2-20.8-9.0-20.8-11.4-20.8-9.7-20.8-10.0 USWI_GRID100.0-100.0-0.85.64.7-1.82.3-1.52.9-1.14.6-0.27.5 USWI_HEMISPHERE40.0-25.05.2-1.14.6-2.02.0-1.72.6-1.24.5-0.37.4 USWI_BOARD40.0-25.0-0.36.3-0.45.8-1.43.44.0-0.65.70.48.6 UDPU_BOARD40.0-25.022.322.922.723.222.022.622.523.322.122.622.222.8 UDPU_BOX40.0-25.021.722.322.222.721.522.0 22.821.622.021.622.2 :< 5 From Limit : Over Limit : Heater Control

12-43 MAVEN PF ICDR May 23-25, 2011 Deep Dip Plot, Stacer

12-44 MAVEN PF ICDR May 23-25, 2011 Relay Predicts Sheet:NodeInfo 7001_Cold_Science_ Relay 7010_Hot_Science_ Relay Parameter:Red HighRed Low Min Max Min Max Node/Group [°C] ULPW1_PREAMP70.0-160.0-94.4-25.3-13.20.4 ULPW2_PREAMP70.0-160.0-93.3-21.54.120.7 ULPW1_WHIP100.0-160.0-75.242.658.077.2 ULPW2_WHIP100.0-160.0-74.443.978.0110.9 ULPW1_STACER100.0-170.0-155.5-21.6-72.4-3.6 ULPW2_STACER100.0-170.0-155.1-17.7-20.013.7 ULPW1_DEPLOYMENT_MECH70.0-160.03.43.83.94.1 ULPW2_DEPLOYMENT_MECH70.0-160.03.23.54.14.5 USEP1_APERTURE_SUN0.0-75.0-55.7-45.1-41.1-34.3 USEP2_APERTURE_SUN0.0-75.0-58.2-45.7-38.5-29.7 USEP1_APERTURE_ANTI_SUN0.0-75.0-55.9-45.3-41.2-34.6 USEP2_APERTURE_ANTI_SUN0.0-75.0-58.3-45.8-38.6-29.9 USEP1_BOARD0.0-35.0-31.1-30.6-30.4-30.0 USEP2_BOARD0.0-35.0-31.2-30.6-30.2-28.6 USEP1_SHIELD100.0-100.0-77.9-49.6-52.0-29.6 USEP2_SHIELD100.0-100.0-59.3-46.3-39.1-30.2 USTA_GRID100.0-100.0-23.5-15.1-1.315.6 USTA_HEMISPHERE40.0-25.0-23.4-14.915.7 USTA_TOF_BOARD40.0-25.0-21.5-14.63.619.2 USTA_BOARD40.0-25.0-19.7-13.35.321.3 USWE_GRID100.0-100.0-35.6-21.9-12.9-4.8 USWE_HEMISPHERE40.0-25.0-22.1-17.2-8.1-2.9 USWE_BASE40.0-25.0-21.6-17.2-7.9-2.8 USWE_BOARD40.0-25.0-21.2-16.9-7.6-2.4 USWI_GRID100.0-100.0-22.4-19.1-17.6-13.6 USWI_HEMISPHERE40.0-25.0-23.0-19.3-17.9-13.8 USWI_BOARD40.0-25.0-20.4-18.6-16.6-13.0 UDPU_BOARD40.0-25.08.19.131.131.6 UDPU_BOX40.0-25.07.68.630.530.9 :< 5 From Limit : Over Limit : Heater Control

12-45 MAVEN PF ICDR May 23-25, 2011 Relay Plot, SEP

12-46 MAVEN PF ICDR May 23-25, 2011 Launch Case Heater Power Heater ID 1004_Launch_Prelaunch_Countdown_Cold 1002_Launch_Prelaunch_Countdown_Hot 1005_Launch_Boost_Hot 1007_Launch_Centaur_Open_Hot 1008_Launch_Centaur_Mid_Hot 1009_Launch_Centaur_Close_Hot 1010_Launch_Sep_Initial Config_SA_Stowed_Open_Hot 1011_Launch_Sep_Initial Config_SA_Stowed_Mid_Hot 1012_Launch_Sep_Initial Config_SA_Stowed_Close_Hot 1013_Launch_Sep_Initial Config_SA_Deployed_Open_Hot 1014_Launch_Sep_Initial Config_SA_Deployed_Mid_Hot 1015_Launch_Sep_Initial Config_SA_Deployed_Close_Hot MAX Orbit Ave (W) Peak (W) Orbit Ave (W) Peak (W) Orbit Ave (W) Peak (W) Orbit Ave (W) Peak (W) Orbit Ave (W) Peak (W) Orbit Ave (W) Peak (W) Orbit Ave (W) Peak (W) Orbit Ave (W) Peak (W) Orbit Ave (W) Peak (W) Orbit Ave (W) Peak (W) Orbit Ave (W) Peak (W) Orbit Ave (W) Peak (W) Orbit Ave (W) Peak (W) Heater Size 75% Duty Cycle Heater Size 50% Duty Cycle UCB_DPU_SURV 0.0 UCB_SEP1_SURV 0.0 UCB_SEP1_OP 0.0 UCB_SEP2_SURV 0.0 UCB_SEP2_OP 0.0 UCB_STA_SURV 0.0 UCB_STA_OP 0.0 UCB_SWE_SURV 0.0 UCB_SWE_OP 0.0 UCB_SWI_SURV 0.0 UCB_SWI_OP 0.0 UCB_LPW1_DEP 0.0 UCB_LPW2_DEP 0.0 Total PF Instrument Heater Power 0.0

12-47 MAVEN PF ICDR May 23-25, 2011 Cruise Case Heater Power Cruise Heater Power Heater ID 1001_Launch_Prelaunch_Hot 1003_Launch_Prelaunch_Cold 2001_Hot_Early Cruise_096AU_62SOP2002_Hot_Early Cruise_096AU_45SOP 2003_Hot_Middle Cruise_113AU_9SOP 2011_Cold_Middle Cruise_123AU_9SOP 2012_Cold_Late Cruise_144AU_9SOP 2013_Cold_Late Cruise_144AU_45SOP 2014_Cold_Early Cruise_099AU_62SOP 2020_Hot_Late Cruise_144AU_45SOP MAX Steady State Average (W) Heater Size 75% Duty Cycle Heater Size 50% Duty Cycle UCB_DPU_SURV 0.0 UCB_SEP1_SURV 0.0 UCB_SEP1_OP 0.0 UCB_SEP2_SURV 0.0 UCB_SEP2_OP 0.0 UCB_STA_SURV 0.0 UCB_STA_OP 0.0 UCB_SWE_SURV 0.0 1.30.00.11.31.83.5 UCB_SWE_OP 0.0 UCB_SWI_SURV 0.0 0.80.0 0.81.12.2 UCB_SWI_OP 0.0 UCB_LPW1_DEP 0.0 UCB_LPW2_DEP 0.0 Total PF Instrument Heater Power 0.0 2.10.00.12.12.85.7

12-48 MAVEN PF ICDR May 23-25, 2011 Deep Dip Heater Power Deep Dip Case Heater Power Heater ID 6001_Hot_Science_Deep_ Dip_+Z_Vel_Vector 6002_Hot_Science_Deep_ Dip_-Z_Vel_Vector 6003_Hot_Science_Deep Dip_+Y_Vel_Vector 6004_Hot_Science_Deep_ Dip_-Y_Vel_Vector 6005_Hot_Science_Deep_ Dip_+X_Vel_Vector 6006_Hot_Science_Deep_ Dip_-X_Vel_Vector MAX Orbit Ave (W) Peak (W) Orbit Ave (W) Peak (W) Orbit Ave (W) Peak (W) Orbit Ave (W) Peak (W) Orbit Ave (W) Peak (W) Orbit Ave (W) Peak (W) Orbit Ave (W) Peak (W) Heater Size 75% Duty Cycle Heater Size 50% Duty Cycle UCB_DPU_SURV 0.0 UCB_SEP1_SURV 0.0 UCB_SEP1_OP 0.2 0.3 0.40.6 UCB_SEP2_SURV 0.0 UCB_SEP2_OP 0.5 0.6 0.5 0.6 0.71.1 UCB_STA_SURV 0.0 UCB_STA_OP 0.0 UCB_SWE_SURV 0.0 UCB_SWE_OP 2.7 2.5 2.3 2.5 2.4 2.7 3.14.6 UCB_SWI_SURV 0.0 UCB_SWI_OP 0.0 UCB_LPW1_DEP 0.0 UCB_LPW2_DEP 0.0 Total PF Instrument Heater Power 3.4 3.3 3.2 3.4 3.1 3.2 3.4 4.26.3

12-49 MAVEN PF ICDR May 23-25, 2011 MOI and Relay Case Heater Power Heater ID 3001_MOI_Hot_Open 3002_MOI_Hot_Close 3003_MOI_Cold_Open 3004_MOI_Cold_Close Cold_Science_Relay 7010_Hot_Science_Relay MAX Orbit Ave (W) Peak (W) Orbit Ave (W) Peak (W) Orbit Ave (W) Peak (W) Orbit Ave (W) Peak (W) Orbit Ave (W) Peak (W) Orbit Ave (W) Peak (W) Orbit Ave (W) Peak (W) Heater Size 75% Duty Cycle Heater Size 50% Duty Cycle UCB_DPU_SURV 0.0 UCB_SEP1_SURV 0.0 0.2 0.1 0.0 0.2 0.30.5 UCB_SEP1_OP 0.0 1.6 0.5 1.6 0.0 UCB_SEP2_SURV 0.0 0.1 0.0 0.1 0.2 UCB_SEP2_OP 0.0 1.8 0.1 1.8 0.0 UCB_STA_SURV 0.0 0.1 UCB_STA_OP 0.0 0.2 0.0 0.2 0.0 UCB_SWE_SURV 0.1 0.3 0.5 0.0 0.5 0.40.6 UCB_SWE_OP 0.0 3.7 0.0 3.7 0.0 UCB_SWI_SURV 0.0 0.2 0.3 0.0 0.3 0.5 UCB_SWI_OP 0.0 3.5 0.0 3.5 0.0 UCB_LPW1_DEP 0.0 UCB_LPW2_DEP 0.0 Total PF Instrument Heater Power 0.1 0.9 1.0 10.8 0.6 10.8 1.21.8

MAVEN CDR May 23-25, 2011 Particles and Fields Package Critical Design Review May 23 -25, 2011 Christopher Smith, Thermal Engineer Mars Atmosphere and.

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MAVEN CDR May 23-25, 2011 Particles and Fields Package Critical Design Review May 23 -25, 2011 Christopher Smith, Thermal Engineer Mars Atmosphere and.

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Presentation on theme: "MAVEN CDR May 23-25, 2011 Particles and Fields Package Critical Design Review May 23 -25, 2011 Christopher Smith, Thermal Engineer Mars Atmosphere and."— Presentation transcript:

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