AMS Summary 16:00 on Thu 18 Apr 2019 (GMT 108) To 16:00 on Fri 19 Apr 2019 (GMT 109)

Flight Ground AMS High Rate Data Downlink Rate (Mbps) : 17 ISS 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) : 3 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 Unstable Ku, ~3.3K 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) 4

Flight Ground ISS AMS on ISS IVoDS (Internet Voice Distribution System) dropped , and reconnected ok. ERIS (Enhanced Remote Interface Servers) connection dropped several times, unable to reconnect. With help from Marshall and HOSC (Huntsville Operations Support Center), power cycle the firewall device, restart the front-end processor (fep) servers, then reconnect ok. 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

AMS FLIGHT and GROUND SYSTEMS FLIGHT GROUND High temperature warning on TOF (location: TOF-4 402n2, TOF-4 405n2). Beta Angle ~ -40 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)

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) 7

Upcoming Events

AMS FLIGHT and GROUND SYSTEMS FLIGHT GROUND Apr 23 04:00 (45 mins): No Comm. ISS Step Up in Houston (again). 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 2 13:00 : SpaceX-17 berth (launch Apr 30/08:22). May 11 23:23 : 71P Reboost #7. Placeholder.

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

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). 12

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) 13