AMS Summary 16:00 on Thu 11 Apr 2019 (GMT 101) To 16:00 on Fri 12 Apr 2019 (GMT 102)

AMS High Rate Data Downlink Rate (Mbps) : 17 -> 40 (9h) 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) 2

Main Data Computers (JMDC) Number of Digital Signal Processor (DSP) bit-flips (auto-fixed) : 1 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 3

Main Data Computers (JMDC) Lv3 showed all events error. Restarted DAQ, back to nominal. (RICH event desync) 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

Flight Ground ISS AMS on ISS Scheduled Ku outage (~20 minutes). Disable playback ON item in Time-based Queue List. 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) 5

Flight Ground ISS AMS on ISS Unstable Ku drop, send command in blind to Playback OFF. ~107k events on Laptop only. 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) 6

Flight Ground ISS AMS on ISS ISS Avionics Network outage (<2 minutes) to Marshall. Reconnected ERIS (Enhanced Remote Interface servers) and IVoDS (Internet Voice Distribution System). 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) 7

Tracker Thermal Control System (TTCS) High Temperature warning in Tracker sensor A and C. 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 8

Flight Ground AMS Laptop daily logfile downlink ok ISS AMS on ISS 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) 9

(RunTag changed: ED6F -> FE01 -> FE02) TRD Gas Refill #105 : Mixing 2#, Injection 2# finished. Full procedure completed. (RunTag changed: ED6F -> FE01 -> FE02) 38 kg

TRD: HV Intercalibration & adjustment (x2) (Every day TRD experts will adjust high voltage according the gas loss in the detector to stabilize the gas gain.) U0: +34V (1433V -> 1466V) U0: +3V (1466V -> 1469V) U1: +34V (1441V -> 1475V) U1: +3V (1475V -> 1478V)

Upcoming Events

Apr 10 <tbd> (3 days) : TRD Gas Refill #105 38 kg

Flight Ground ISS AMS on ISS Apr 13 22:30 (~8h) : Ku intermittent. High Rate tests. Playback ON maybe OK. 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) 14

Flight Ground ISS AMS on ISS Apr 15 15:00 (~4d) : Data Management Facility upgrade in POIC - no impact to AMS. 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) 15

Apr 19 11:30 : Cygnus NG-11 berth (launch at Apr 17/20:46). Apr 28 16:46 : SpaceX-17 berth (launch Apr 26/09:55). May 11 23:23 : 71P Reboost #7. Placeholder.

May 14 (2 days): ISS Yaw bias from -4 to -12 for power generation (+58<Beta<+68.5). 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). 17

Flight Ground ISS AMS on ISS <tbd>: ISS Express Rack ER3 Laptop upgrade. Loss of comm. to AMS Laptop ~1h. 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) 18