AMS Summary 16:00 on Wed 22 May 2019 (GMT 142) To 16:00 on Mon 27 May 2019 (GMT 147)

AMS High Rate Data Downlink Rate (Mbps) : 17 -> 27 (1 AMS High Rate Data Downlink Rate (Mbps) : 17 -> 27 (1.5h) -> 17 -> 50 (22h) -> 17 Tracking and Data Relay Satellite (TDRS) ISS AMS Laptop AMS on ISS Flight Main Data Computers (JMDC) ISS Avionics Ku-band High Rate (down): Baseline: <17Mbit/s> Asia POCC TEE: Track/TRD/ACC PM: TOF/RICH/ECAL POCC TEE: Track/TRD/ACC PM: TOF/RICH/ECAL LEAD Thermal DATA Consultant NASA Liaison Data Production Ground White Sands Ground Terminal AMS Computers at Marshall Space Flight Center (MSFC)

Main Data Computers (JMDC) Number of Digital Signal Processor (DSP) bit-flips (Auto-fixed, x15) : 3(Wed), 2(Thu), 4(Fri), 2(Sat), 3(Sun), 1(Mon) Data Acquisition (DAQ) Readout Data Reduction Detectors DAQ Comp (JINJ) TRD TOF+ACC Tracker RICH ECAL TRD (UDR) TOF+ACC (SDR) Tracker (TDR) RICH (RDR) ECAL (EDR) Trigger (JLV1) TRD (JINF-U) Tracker (JINF-T) RICH (JINF-R) ECAL (JINF-E) Main Data Computers (JMDC) Radiation Heavy nuclei More than 300 active Digital Signal Processor (DSP) for processing subdetectors signal, calculation and system control. DSP bit-flips are checked 4 times per orbit and can be fixed automatically. - Integrated Circuit (Si) + I increasing Bit-flips - a logic state is changed 3 3 3

Main Data Computers (JMDC) Lv3 showed all events error (due to RICH event desync). Restarted DAQ, back to nominal. (Thu.) Data Acquisition (DAQ) Readout Data Reduction Detectors DAQ Comp (JINJ) TRD TOF+ACC Tracker RICH ECAL TRD (UDR) TOF+ACC (SDR) Tracker (TDR) RICH (RDR) ECAL (EDR) Trigger (JLV1) TRD (JINF-U) Tracker (JINF-T) RICH (JINF-R) ECAL (JINF-E) Main Data Computers (JMDC) Radiation Heavy nuclei More than 300 active Digital Signal Processor (DSP) for processing subdetectors signal, calculation and system control. DSP bit-flips are checked 4 times per orbit and can be fixed automatically. - Integrated Circuit (Si) + I increasing Bit-flips - a logic state is changed 4 4 4 4

Main Data Computers (JMDC) Lv3 showed event number didn’t change. Stopped DAQ failed on a Tracker Data Reduction (TDR) computer. Manually rebooted the computer and restarted DAQ, back to nominal. (Fri.) Data Acquisition (DAQ) Readout Data Reduction Detectors DAQ Comp (JINJ) TRD TOF+ACC Tracker RICH ECAL TRD (UDR) TOF+ACC (SDR) Tracker (TDR) RICH (RDR) ECAL (EDR) Trigger (JLV1) TRD (JINF-U) Tracker (JINF-T) RICH (JINF-R) ECAL (JINF-E) Main Data Computers (JMDC) Radiation Heavy nuclei More than 300 active Digital Signal Processor (DSP) for processing subdetectors signal, calculation and system control. DSP bit-flips are checked 4 times per orbit and can be fixed automatically. - Integrated Circuit (Si) + I increasing Bit-flips - a logic state is changed 5 5 5 5

Flight Ground ISS AMS on ISS Update DAQ restart times in JMDC Time-based Queue List. (Fri) Tracking and Data Relay Satellite (TDRS) ISS AMS Laptop AMS on ISS Flight Main Data Computers (JMDC) ISS Avionics Asia POCC TEE: Track/TRD/ACC PM: TOF/RICH/ECAL POCC TEE: Track/TRD/ACC PM: TOF/RICH/ECAL LEAD Thermal DATA Consultant NASA Liaison Data Production Ground White Sands Ground Terminal AMS Computers at Marshall Space Flight Center (MSFC)

Flight Ground ISS AMS on ISS ISS Avionics Issues in S-Band, commanding disabled for ~2 hours, Playback OFF. (Thu.) Schedule commanding S-Band index change, commanding disabled for 5 mins. (Fri.) Tracking and Data Relay Satellite (TDRS) ISS AMS Laptop AMS on ISS Flight Main Data Computers (JMDC) ISS Avionics Asia POCC TEE: Track/TRD/ACC PM: TOF/RICH/ECAL POCC TEE: Track/TRD/ACC PM: TOF/RICH/ECAL LEAD Thermal DATA Consultant NASA Liaison Data Production Ground White Sands Ground Terminal AMS Computers at Marshall Space Flight Center (MSFC)

Flight Ground ISS AMS on ISS ISS Avionics Unexpected Ku drop, ~22K events of data on Laptop only. (Wed) Unexpected Ku drop(x3), ~31K events of data on Laptop only. (Sat) Unexpected Ku drop, ~13K events of data on Laptop only. (Sun) Unexpected Ku drop, ~12K events of data on Laptop only. (Mon) Tracking and Data Relay Satellite (TDRS) ISS AMS Laptop AMS on ISS Flight Main Data Computers (JMDC) ISS Avionics Ku-band High Rate (down): Baseline: <17Mbit/s> Asia POCC TEE: Track/TRD/ACC PM: TOF/RICH/ECAL POCC TEE: Track/TRD/ACC PM: TOF/RICH/ECAL LEAD Thermal DATA Consultant NASA Liaison Data Production Ground White Sands Ground Terminal AMS Computers at Marshall Space Flight Center (MSFC)

Flight Ground ISS AMS on ISS ISS Avionics Internet Voice Distribution System (IVoDS), Enhanced Remote Interface Servers (ERIS) and ISS live connections dropped(x3), reconnected ok. (Thu) Cannot login to Enhanced Remote Interface Servers (ERIS). Called Huntsville Operations Support Center (HOSC) for help. Restart commanding server and reconnected ok. (Fri) Enhanced Remote Interface Servers (ERIS) dropped, reconnected ok. (Fri) Tracking and Data Relay Satellite (TDRS) ISS AMS Laptop AMS on ISS Flight Main Data Computers (JMDC) ISS Avionics Asia POCC TEE: Track/TRD/ACC PM: TOF/RICH/ECAL POCC TEE: Track/TRD/ACC PM: TOF/RICH/ECAL LEAD Thermal DATA Consultant NASA Liaison Data Production Ground White Sands Ground Terminal AMS Computers at Marshall Space Flight Center (MSFC)

Flight Ground ISS AMS on ISS ISS Avionics Issues in ISS Express Rack 3. No RICchd (Rack Interface Controller Critical Housekeeping data) from Laptop. Ask DMC to clear dark fibber and load Laptop Queue-List didn’t help. Data experts Maxim and Andrey called. After ISS Express Rack 3 issues fixed, reload Laptop Queue-List , then nominal. (Thu) Tracking and Data Relay Satellite (TDRS) ISS AMS Laptop AMS on ISS Flight Main Data Computers (JMDC) ISS Avionics Asia POCC TEE: Track/TRD/ACC PM: TOF/RICH/ECAL POCC TEE: Track/TRD/ACC PM: TOF/RICH/ECAL LEAD Thermal DATA Consultant NASA Liaison Data Production Ground White Sands Ground Terminal AMS Computers at Marshall Space Flight Center (MSFC)

Flight Ground ISS AMS on ISS ISS Avionics Since ISS reboost on Thursday, the number of satellites seen by AMS GPS is varying, sometimes dropped to 0. (Thu - Mon) Tracking and Data Relay Satellite (TDRS) ISS AMS Laptop AMS on ISS Flight Main Data Computers (JMDC) ISS Avionics Asia POCC TEE: Track/TRD/ACC PM: TOF/RICH/ECAL POCC TEE: Track/TRD/ACC PM: TOF/RICH/ECAL LEAD Thermal DATA Consultant NASA Liaison Data Production Ground White Sands Ground Terminal AMS Computers at Marshall Space Flight Center (MSFC) Friday Saturday Sunday Monday

Tracker Thermal Control System (TTCS) TTCS pump-SB has no spikes (speed over limit). (Wed - Mon ) Working fluid：CO2 Single phase Two-phase condensers Pump-SB Magnet HX Accumulator space Tracker Thermal Control System (TTCS) Tracker TTCB one of two in parallel Radiators Evaporator +10ºC 120W 120W in out Evaporator Fill port 12

Flight Ground AMS Laptop daily logfile downlink OK (x5) ISS AMS on ISS (The logfile contains the operation status of the Laptop and is checked by DATA expert everyday to make sure the Laptop is working properly) Tracking and Data Relay Satellite (TDRS) ISS AMS Laptop AMS on ISS Flight Main Data Computers (JMDC) ISS Avionics Asia POCC TEE: Track/TRD/ACC PM: TOF/RICH/ECAL POCC TEE: Track/TRD/ACC PM: TOF/RICH/ECAL LEAD Thermal DATA Consultant NASA Liaison Data Production Ground White Sands Ground Terminal AMS Computers at Marshall Space Flight Center (MSFC)

Flight Ground ISS AMS on ISS [A.Pashnin] Found 9 file intervals of missing data for May 20-22. (Thu.) [A.Pashnin] Playback 10 file intervals of missing data from Laptop for May 14-23. (Fri.) [A.Pashnin] Playback 4 file intervals of missing data from Laptop for May 24-16. (Mon.) Tracking and Data Relay Satellite (TDRS) ISS AMS Laptop AMS on ISS Flight [B.Shan]: Merging has been done for May 14-23: (Sun.) 1557808798 (7.94%, SCI, 91322 events, 1.8 min) 1558373240 (18.11%, SCI, 115337 events, 4.1 min) 1558385730 (20.19%, SCI, 128207 events, 4.7 min) 1558394071 (4.30%, SCI, 34498 events, 1.0 min) 1558395480 (23.08%, CAL, 114 events, 0.0 min) 1558395484 (21.71%, SCI, 211105 events, 4.9 min) 1558396852 (9.40%, SCI, 62001 events, 2.2 min) 1558449681 (12.04%, SCI, 94599 events, 2.8 min) 1558464996 (8.12%, SCI, 61687 events, 1.8 min) 1558476118 (13.03%, SCI, 147112 events, 3.0 min) 1558480267 (14.14%, SCI, 92786 events, 3.3 min) 1558567875 (1.98%, SCI, 21621 events, 0.5 min) Main Data Computers (JMDC) ISS Avionics Asia POCC TEE: Track/TRD/ACC PM: TOF/RICH/ECAL POCC TEE: Track/TRD/ACC PM: TOF/RICH/ECAL LEAD Thermal DATA Consultant NASA Liaison Data Production Ground White Sands Ground Terminal AMS Computers at Marshall Space Flight Center (MSFC) 15

TRD: HV Intercalibration (x4) (Every day TRD experts will adjust high voltage according the gas loss in the detector to stabilize the gas gain.) U0: -4V (1413V -> 1409V) U0: -2V (1409V -> 1407V) U0: -1V (1407V -> 1406V) U0: -3V (1406V -> 1403V) U1: -3V (1422V -> 1419V) (1419V -> 1416V) U1: -2V (1416V -> 1414V) (1414V -> 1412V)

AMS FLIGHT and GROUND SYSTEMS FLIGHT GROUND TRD: [V.Zhukov] Switch Xe and CO2 vessels heaters OFF (Beta angle < +60 degrees ) . (Fri.) AMS on ISS Trigger (JLV1) AMS Laptop Detectors Data Reduction Readout [2]x[4] TRD TOF+ACC Tracker RICH ECAL TRD (UDR) TRD (JINF-U) Tracker (JINF-T) RICH (JINF-R) ECAL (JINF-E) HRDL LRDL ISS Avionics 100 MBit/s E’net 7x[2] 8x[2]x[2] 2x[2]x[2] DAQ Comp (JINJ) AMSWire 100 MBit/s Main Data Computers (JMDC) TOF+ACC (SDR) 4x[2]x[4] Tracker (TDR) 4x[4] 24x[2] FLIGHT RICH (RDR) 12x[2] ECAL (EDR) 7x[2] 2x[4] TDRS AMS CAN Bus Main Comp. Power (USCM-J) Monitoring (Align., GPS, Star Track, Temps.) (USCM-M) TRD Gas, Temp. (UGSC-UG) Power Distribution (PDS) Tracker Thermal (TTCE) Ku-Forward(2015) Thermal Systems Ku-band S-band Asia POCC TEE: Track/TRD/ACC PM: TOF/RICH/ECAL Infrastructure White Sands POCC TEE: Track/TRD/ACC PM: TOF/RICH/ECAL LEAD Thermal DATA Consultant Infrastructure NASA Liaison Data Production ERIS/CDP/KuFwd MCC, JSC HOSCfepRIC POIC, MSFC Internet HOSCfep ERIS/CDP GSC IVoDS NISN GROUND AMS Flight Simulator Lab. AMS Flight Simulator ISS Avionics Simulator AMS Laptop SDIL, JSC “ISS” Avionics AMS Laptop FEU Internet Backup POCC (in 892)

Main Data Computers (JMDC) RICH: 3 Bad Status in Science Buffer Playback file 3942/634-636 (Fri.) Data Acquisition (DAQ) Readout Data Reduction Detectors DAQ Comp (JINJ) TRD TOF+ACC Tracker RICH ECAL TRD (UDR) TOF+ACC (SDR) Tracker (TDR) RICH (RDR) ECAL (EDR) Trigger (JLV1) TRD (JINF-U) Tracker (JINF-T) RICH (JINF-R) ECAL (JINF-E) Main Data Computers (JMDC) 18 18 18

Main Data Computers (JMDC) RICH: Restarted DAQ to upload new configuration files to mask noisy PMT 14, and increase the number of PMT to trigger high occupancy alarm in housekeeping data. (Mon.) Data Acquisition (DAQ) Readout Data Reduction Detectors DAQ Comp (JINJ) TRD TOF+ACC Tracker RICH ECAL TRD (UDR) TOF+ACC (SDR) Tracker (TDR) RICH (RDR) ECAL (EDR) Trigger (JLV1) TRD (JINF-U) Tracker (JINF-T) RICH (JINF-R) ECAL (JINF-E) Main Data Computers (JMDC) 19 19 19

Upcoming Events

AMS FLIGHT and GROUND SYSTEMS FLIGHT GROUND May 31 04:00 (45 mins): No Communication. Mission Control Center (MCC) Step Up. Playback OFF AMS on ISS Trigger (JLV1) AMS Laptop Detectors Data Reduction Readout [2]x[4] TRD TOF+ACC Tracker RICH ECAL TRD (UDR) TRD (JINF-U) Tracker (JINF-T) RICH (JINF-R) ECAL (JINF-E) HRDL LRDL ISS Avionics 100 MBit/s E’net 7x[2] 8x[2]x[2] 2x[2]x[2] DAQ Comp (JINJ) AMSWire 100 MBit/s Main Data Computers (JMDC) TOF+ACC (SDR) 4x[2]x[4] Tracker (TDR) 4x[4] 24x[2] FLIGHT RICH (RDR) 12x[2] ECAL (EDR) 7x[2] 2x[4] TDRS AMS CAN Bus Main Comp. Power (USCM-J) Monitoring (Align., GPS, Star Track, Temps.) (USCM-M) TRD Gas, Temp. (UGSC-UG) Power Distribution (PDS) Tracker Thermal (TTCE) Ku-Forward(2015) Thermal Systems Ku-band S-band Asia POCC TEE: Track/TRD/ACC PM: TOF/RICH/ECAL Infrastructure White Sands POCC TEE: Track/TRD/ACC PM: TOF/RICH/ECAL LEAD Thermal DATA Consultant Infrastructure NASA Liaison Data Production ERIS/CDP/KuFwd MCC, JSC HOSCfepRIC POIC, MSFC Internet HOSCfep ERIS/CDP GSC IVoDS NISN GROUND AMS Flight Simulator Lab. AMS Flight Simulator ISS Avionics Simulator AMS Laptop SDIL, JSC “ISS” Avionics AMS Laptop FEU Internet Backup POCC (in 892)

May 29 <tbd> : Russian EVA. No impact. July 12 (3 days): ISS Yaw bias from -4 to -12 for power generation (+58<Beta>+68.5). July 19 (4 days): ISS Yaw bias from -4 to -12 for power generation (+68.5>Beta>+58).

Jun 3 10:04 : SpX-17 unberth Jun 4 10:40 : 71P undock Jun 25 01:10 : 57s undock Jul 10 14:00 : SpX-18 berth (Launch Jul 8/00:00). AMS Laptop upgrade disk aboard.

Tracker Thermal Control System (TTCS) Projected pump ON/OFF times (Z. Zhang, 16 Apr 2019): May 03 - Jun 05 : Pump ON Jun 05 - Jun 30 : Pump OFF (Tracker Configuration E) Jul 01 - Aug 03 : Pump ON Aug 03 - Sep 01 : Pump OFF (Tracker Configuration E) Sep 02 - Sep 30 : Pump ON Tracker Thermal Control System (TTCS) Working fluid：CO2 Single phase Two-phase condensers Pump-SB Magnet HX Accumulator space in out Evaporator Tracker TTCB one of two in parallel Radiators 120W +10ºC Fill port

Flight Ground ISS AMS on ISS Jun 7 <tbd>: 600Mbit downlink test Tracking and Data Relay Satellite (TDRS) ISS AMS Laptop AMS on ISS Flight Main Data Computers (JMDC) ISS Avionics Asia POCC TEE: Track/TRD/ACC PM: TOF/RICH/ECAL POCC TEE: Track/TRD/ACC PM: TOF/RICH/ECAL LEAD Thermal DATA Consultant NASA Liaison Data Production Ground White Sands Ground Terminal AMS Computers at Marshall Space Flight Center (MSFC)

Flight Ground ISS AMS on ISS ISS Avionics Jun 26 23:30 (1h) : NASA software transition to Increment 60. No Certificate of Flight Readiness (CoFR) request yet. Tracking and Data Relay Satellite (TDRS) ISS AMS Laptop AMS on ISS Flight Main Data Computers (JMDC) ISS Avionics Asia POCC TEE: Track/TRD/ACC PM: TOF/RICH/ECAL POCC TEE: Track/TRD/ACC PM: TOF/RICH/ECAL LEAD Thermal DATA Consultant NASA Liaison Data Production Ground White Sands Ground Terminal AMS Computers at Marshall Space Flight Center (MSFC) 26