AMS Summary 16:00 on Fri 12 Apr 2019 (GMT 102) To 16:00 on Mon 15 Apr 2019 (GMT 105)

AMS High Rate Data Downlink Rate (Mbps) : 17 -> 35 (6h) ->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) 2

Main Data Computers (JMDC) Number of Digital Signal Processor (DSP) bit-flips (Auto-fixed) : 1(Fri), 2 (Sat), 1(Sun) (Manually-fixed) : 1(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 3 3 3 3

Flight Ground ISS AMS on ISS ISS Avionics AMS Laptop ERIS (Enhanced Remote Interface Serrvers) connection dropped, reconnected ok. (x2) (Sun.) 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) 4

Flight Ground ISS AMS on ISS [X.Cai] Upload Tracker configuration files to JMDC: (Fri.) ‘T_Conf_9.cmd’ - Turn off Layer 5 and Layer 6 ‘T_L9_OFF.cmd’ – Turn off Layer9 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

High Temperature warning (34-35) in Tracker sensor A and C High Temperature warning (34-35) in Tracker sensor A and C. (Fri, Sat, Sun) Tracker Sensor C temperature above 36 deg. Expert (J.Tian) informed. (Sun.)

[X. Cai] Change Tracker Front-end to config 9 (turn off Layer 5 and Layer 6 from config E). Retart DAQ with new RunTag=9000. Update new LV3 parameters for Tracker config 9. (Sun.) 7

Flight Ground ISS AMS on ISS ISS Avionics ISS Step Up, commanding disabled ( ~1h), AMS Playback OFF. (Sat.) 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

Flight Ground ISS AMS on ISS ISS Avionics S-Band commanding disabled (~10 minutes) by PRO (Payload Rack Officer) for troubleshooting, then nominal. (Sun.) 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) 10

Flight Ground AMS Laptop daily logfile downlink ok (x3) 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) 11

Flight Ground ISS AMS on ISS ISS Avionics [M.Konyushikhin] Found 5 file intervals of missing data for Apr 8-11. (Fri.) [M.Konyushikhin] Playback 5 file intervals of missing data from Laptop to ground for Apr 8-11. (Fri.) Tracking and Data Relay Satellite (TDRS) ISS AMS Laptop AMS on ISS Flight Main Data Computers (JMDC) ISS Avionics [B.Shan]: Merging results: (Sun.) 1554713977 (2.82%, SCI, 17223 events, 0.6 min) 1554909980 (7.51%, SCI, 52686 events, 1.7 min) 1554943346 (44.39%, SCI, 559403 events, 10.3 min) 1554983704 (13.31%, SCI, 112034 events, 3.0 min) 1554987834 (13.54%, SCI, 92449 events, 3.1 min) 1554989246 (10.25%, SCI, 107346 events, 2.3 min) 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) 12

Flight Ground ISS AMS on ISS ISS Avionics SOC showed “NO ROOT FILES” warning, ~30 minutes later, nominal. (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) 13

TRD: HV Intercalibration (x2) (Every day TRD experts will adjust high voltage according the gas loss in the detector to stabilize the gas gain.) U0: -13V (1469V -> 1456V) U0: -2V (1456V -> 1454V) U1: -13V (1478V -> 1465V) U1: -2V (1465V -> 1463V)

Upcoming Events

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) 16

Flight Ground ISS AMS on ISS Apr. 19 <tbd>: JMDC monthly reload 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) 17

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). 19

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) 20