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DPC SGS-IR – ESTEC – 24-26 January 2007 Anna Gregorio University of Trieste and INAF – Osservatorio Astronomico di Trieste On behalf of the Planck LFI DPC-IOT and Planck SCS DPC-IOT (Gianluca Morgante) LFI & SCS Operation Plan
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DPC SGS-IR – ESTEC – 24-26 January 2007 Overview Operations Context Data processing Tele-commanding Software maintenance, new software release, archive development Nominal Operations Routine Operations Non-Routine Operations Commissioning and CPV Operations See also Operation Plan PL-LFI-PST-PL-011 PL-LFI-PST-PL-011 ANNEX I
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DPC SGS-IR – ESTEC – 24-26 January 2007 Operation Context Data Processing LFI: SGS1 & SGS2 SCS: SGS1 only (SCS data are considered HK) Tele-commanding Maintenance TC (re-setting TM counter) + ad-hoc TC to enhance LFI performance or better monitor the LFI Software maintenance, new software release, archive development SGS1 (LFI and SCS) & SGS2 (LFI only) Support to MOC when necessary
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DPC SGS-IR – ESTEC – 24-26 January 2007 DPC-IOT Nominal Operations Routine Phase Operations Daily Operations (LFI & SCS) Weekly Operations (LFI & SCS) Monthly Operations (LFI & SCS) End of Survey (Map Production) (LFI) Component separation and optimization Inter-comparison and cross-check Non Routine Operations LFI: Planet Scanning Small Gap Recovery Operations SCS: Recovery Operations (in case of contingencies, at MOC or at DPC) SCS switch-over (baseline, it is planned in advance) Regeneration (NOT baseline, if needed can be planned in advance) Commissioning and CPV The operation timeline depends on the synergetic interaction of several activities involving the S/C, both instruments and SCS, that need to be finalized
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DPC SGS-IR – ESTEC – 24-26 January 2007 Daily Operations: automatic 1.Download one observation day of consolidated data 2.Run SGS1 software: RTA, TQL, TMH 3.Check system health and performance: LFI: Compute R and evaluate the knee frequency SCS: compute heat lift and input power, evaluate high/low pressure and cold end T 4.Compare with HFI data (on demand) 5.Run the Time Series Analysis (TSA) – LIFE system: Trends, Data Quality, Flags 6. Compile the reports generated by LIFE into a Daily Quality Report (DQR) to be sent to PSO LFI & SCS
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DPC SGS-IR – ESTEC – 24-26 January 2007 Daily Operations: DPC/IOT 7.Check and transmit the information (DQR and uplink operations) towards the instrument and SCS: LFI Instrument procedure requests (maintenance TC & additional), calibration channel switching, small gap recovery requests, Instrument special procedure requests (REBA patching) (if needed) SCS LookUpTable update/upload (if needed) 8.Eventually provide support to the scientific team running the Quick-Alarm system for detection of flaring radio sources 9.First look for systematics, perform first-order calibration, cleaning, write processed “circles” 10.Comparison with HFI data when needed 11.Organize the daily meeting LFI & SCS
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DPC SGS-IR – ESTEC – 24-26 January 2007 Daily Quality Report (OD) Period covered by the report, Date/Time of report generation, Software tools version, Issuer of the report, Any relevant warnings or comments LFI Threshold NET (Noise Equivalent Temperature) Data records for quality analysis parameters (per pointing): Pointing Reference, Axis positioning information, Dwell period start and end times, Science observation time Transfer status to DPC of TM collected per detector Dipole/Galaxy Response per detector NET per detector, NET bandwidth per channel Temperature sensors report (average T, drift, noise power, fluctuations, out of limits) State vector (voltage and current report) SCS (DQR is annex to the LFI one) TMU health & SCE health (all sensors: T, P, V, I) Cooler Status (Cycle Time, GGA’s timing, number of cycles) Contingencies & Events (Diagnostic TM, Event Reports TM(5,1)) SCS Primary (T, P, V, I) and Derived Performance Parameters vs requirements (Cold End T and PSD, Heat Lift, Mass Flow, Input Power) Primary I/F’s status (Warm Radiator T, PC1, PC2, PC3abc T, HFI I/F T, LFI I/F T) Any relevant warning or comment
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DPC SGS-IR – ESTEC – 24-26 January 2007 Delays in the timelines Short Delays in DQR production Glitches or Alarms Limited in time, reprocessing of a chunk of data; Bad sky subtraction Reason to be understood, reprocessing of a chunk of data; Bad point sources subtraction Reason to be understood, reprocessing of a chunk of data Additional Delays in the Operation Context (Data processing & TC) Small Gap or a more general gap Cause to be understood and then solved before implementing a correction; Requiring a list of TC to be sent; If not a trivial problem, it could be a long delay; A minor problem or a required tuning Requiring a list of TC to be sent; HFI comparison HFI data to be retrieved and then compared to LFI
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DPC SGS-IR – ESTEC – 24-26 January 2007 Weekly Operations 1.Read one week of consolidated raw LFI/SCS TOI from archive 2.Run TSA – LIFE for data checking and trend analysis 3.When needed, compare with HFI data 4.Perform initial “calibration” on data: LFI Iterative calibration of radiometers, 1-D evaluation of beam, Stray-light effects, Attitude reconstruction, Focal Plane reconstruction SCS Primary (T, P, Input Power) & derived (Heat Lift, Cold End T and PSD) parameters Hydrides degradation Possible LUT update evaluation 5.Map Making (temperature & polarization) 6.Compile the reports generated by TSA-LIFE trend analysis and daily reports into a Weekly Health Report (WHR) to be sent to PSO 7.Organize the weekly meeting
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DPC SGS-IR – ESTEC – 24-26 January 2007 Monthly Operations 1.Read one month of calibrated LFI/SCS TOI from archive 2.LFI: Build partial frequency maps and compare SCS: Run trend analysis (primary and derived parameters) Evaluate hydrides degradation Evaluate possible variations to SCS Operation baseline 3.Possibly, run Level 3: Component separation, Inter-frequency cross-checks on CMB maps, Component maps archive, Merge component maps 4.Cross-check LFI and HFI data Retrieve HFI maps/power spectra, Cross-check LFI - HFI data, LFI/HFI optimization on component maps 5.Compile monthly data processing reports to be sent to PSO 6.Organize the monthly meeting
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DPC SGS-IR – ESTEC – 24-26 January 2007 SGS1 SGS2 Timeline 1/4 SGS1 f ~ 10 hr SGS1 1 ~ 8 hr LIFE ~ 10 hr SGS2 1 ~ 20 hr SGS2 2 ~ 26 hr Operational Day (OD): 24 hr DTCP ~ 3 hr GS to MOC ~ 5 hr Data @DPC ~ 3 hr SGS1
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DPC SGS-IR – ESTEC – 24-26 January 2007 Timeline 2/4: Mid caseSGS2
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DPC SGS-IR – ESTEC – 24-26 January 2007 Timeline 3/4: Extreme Late caseSGS2
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DPC SGS-IR – ESTEC – 24-26 January 2007 Timeline 4/4: Extreme Early case SGS2 SGS2
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DPC SGS-IR – ESTEC – 24-26 January 2007 Conclusions Effort to implement as much as possible the LFI/SCS operations in an automatic way For operations requiring DPC/IOT intervention, a person will always be in place For contingencies, gaps or more in general for any alarm, a DPC/IOT responsible will be automatically informed to react as soon as possible Routine Operations Operations and timelines are in place Quality reports are being implemented
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