ISHMAEL.CFA.HARVARD.EDU LIVE ACIS DATA: MEAN VALUES, SIGMAS, AND STATUS
ACIS Live: Mean Engineering Data - ISHMAEL.CFA.HARVARD.EDU
Web Page Last Updated: Sat Mar 7 02:25:02 UTC 2026
TIME OF LAST DATUM REC'D WAS Fri Mar 6 19:28:15 GMT 2026
DATA WAS IN FMT2 & OBSID 29888 WAS IN PROGRESS
WE ARE CURRENTLY LOS
I last saw data on Fri Mar 6 19:28:30 GMT 2026 (Day 65)

Tracelog File Status is: FRESH

Check the ACIS Limits table

CURRENT ORBITAL INFORMATION

EXPECTED SCHEDULED STATE AT:   Sat Mar 7 02:25:02 UTC 2026 (Day 66)

FP INSTRUMENT
GRATINGS STATUS
OBSID
TLM FORMAT
DITHER STATUS
SCS-155 STATUS
HRC-S ( -99616 )
HETG-IN/LETG-OUT
41666
FMT2
ENAB
CODISAS1

REAL-TIME STATE AT:                       Fri Mar 6 19:28:30 GMT 2026 (Day 65)

FP INSTRUMENT
GRATINGS STATUS
OBSID
TLM FORMAT
DITHER STATUS
SCS-155 STATUS
ACIS-S     (75623.00)
HETG-OUT/LETG-OUT
29888
FMT2
ENAB
ACT



SCS-155 Deadman Status at:   Sat Mar 7 02:25:02 UTC 2026 (Day 66)

SCS-155 Deadman
Description
Latest Real Time Contact State
COSCS155S - 9 daySCS-155 Active Status
ACT



CURRENT RADIATION ENVIRONMENT ON CHANDRA

Start Time Fri Mar 6 19:28:13 GMT 2026
End Time Fri Mar 6 19:23:18 GMT 2026


HRC RADMON
Description
MEAN VALUE
SIGMA OF THE MEAN
SCS107 Limit
MCPTOT_B - 9 dayuncalibrated MCP total rate
20.40
1.06
30
SHIELD_B - 9 dayuncalibrated shield rate
22.10
0.46
245

LATEST ORBITAL FLUENCE DATA AT:   Sat Mar 7 02:25:02 UTC 2026

ALTITUDE
LATEST ACIS FLUX (ACE P3 CHANNEL)
ACIS FLUENCE (ACE P3 CHANNEL)
47128 km D
0.00e+00
4.639e+06



ACE 24 Hour EPAM FLUX AND FLUENCE DATA AT:   Sat Mar 7 02:25:02 UTC 2026

ALTITUDE
Plot
LAST P3
LAST Att. P3
ORB. Att. P3 FLU
ORB. Frac.
YEAR Att P3 FLU
47128 km D
24hr Plots
1.661e+01
1.661e+01
1.026e+06
0.309
1.129e+09

Date of Last P3 Data Point:   2026:064:11:27:53.00


Description of ACE 24 Hour table header items. Start Time: Fri Mar 6 19:28:15 GMT 2026



Target and Actual Quaternions:   Sat Mar 7 02:25:02 UTC 2026


MSID
Description
Value
TimeTime of the last value
Fri Mar 6 19:28:15 GMT 2026
AOTARQT1TARGET ATTITUDE QUATERNION 1
0.0153607320
AOTARQT2TARGET ATTITUDE QUATERNION 2
-0.7915748400
AOTARQT3TARGET ATTITUDE QUATERNION 3
-0.5954474200
--------TARGET ATTITUDE QUATERNION 4
---------
AOATTQT1ACTUAL ATTITUDE QUATERNION 1
0.0154141260
AOATTQT2ACTUAL ATTITUDE QUATERNION 2
-0.7915688800
AOATTQT3ACTUAL ATTITUDE QUATERNION 3
-0.5954523100
AOATTQT4ACTUAL ATTITUDE QUATERNION 4
0.1364472200


SIM AND FOCUS POSITIONS



Start Time: Fri Mar 6 19:27:50 GMT 2026
End Time: Fri Mar 6 19:27:50 GMT 2026

MSID
DESCRIPTION
LAST VALUE
[37]TSCPOSSIM TT Position
75623.00 / -1.00
[37]FAPOSSIM FA Position
-467.00 / -1.00
4HPOS[AB]ROHETG Angle
77.59 / 78.34
4LPOS[AB]ROLETG Angle
76.84 / 76.09



SIM Motor Overcurrent & Stall Cntrs
Start Time: Fri Mar 6 19:22:59 GMT 2026
End Time: Fri Mar 6 19:27:54 GMT 2026

MSID
DESCRIPTION
MEAN VALUE
SIGMA OF THE MEAN
# OF FRAMES
3SMOTOCSIM Motor Overcurrent Cntr
0.00
0.00
10
3SMOTSTLSIM Motor Stall Cntr
0.00
0.00
10



ELECTRICAL DATA
ACIS DPA
Start Time: Fri Mar 6 19:23:18 GMT 2026
End Time: Fri Mar 6 19:28:13 GMT 2026

MSID
DESCRIPTION
MEAN VALUE
SIGMA OF THE MEAN
# OF FRAMES
1DP28AVO - 9day DPA +28V Input A
26.04
0.02
10
1DP28BVO - 9day DPA +28V Input B
26.52
0.02
10
1DPICACU - 9day DPA Input Current A
1.21
0.01
10
1DPICBCU - 9day DPA Input Current B
0.29
0.00
10
DPA A POWER - 9day 1DP28AVO*1DPICACU
31.51
0.26
NA
DPA B POWER - 9day 1DP28BVO*1DPICBCU
7.69
0.01
NA
1DPP0AVO - 9day DPA +5V Analog A
5.26
0.01
10
1DPP0BVO - 9day DPA +5V Analog B
5.13
0.00
10



ACIS DEA
Start Time: Fri Mar 6 19:25:32 GMT 2026
End Time: Fri Mar 6 19:27:59 GMT 2026

DEA A-Side MSID
DESCRIPTION
MEAN VALUE
SIGMA OF THE MEAN
# OF FRAMES
DEA B-Side MSID
DESCRIPTION
MEAN VALUE
SIGMA OF THE MEAN
# OF FRAMES
1DE28AVO - 9day DEA +28V Input A
26.00
0.02
10
1DE28BVO - 9day DEA +28V Input B
26.52
0.02
10
1DEP3AVO - 9day DEA +28V Analog A
30.51
0.02
10
1DEP3BVO - 9day DEA +28V Analog B
0.09
0.02
10
1DEP2AVO - 9day DEA +24V Analog A
24.60
0.00
10
1DEP2BVO - 9day DEA +24V Analog B
0.12
0.00
10
1DEP1AVO - 9day DEA +15V Analog A
15.56
0.01
10
1DEP1BVO - 9day DEA +15V Analog B
0.05
0.01
10
1DEP0AVO - 9day DEA +6V Voltage A
6.12
0.00
10
1DEP0BVO - 9day DEA +6V Voltage B
0.02
0.00
10
1DEN0AVO - 9day DEA -6V Voltage A
-6.22
0.01
10
1DEN0BVO - 9day DEA -6V Voltage B
-0.14
0.00
10
1DEN1AVO - 9day DEA -15V Voltage A
-15.61
0.00
10
1DEN1BVO - 9 day DEA -15V Voltage B
-0.26
0.01
10
1DEICACU - 9 day DEA Input Current A
1.33
0.08
10
1DEICBCU - 9 day DEA Input Current B
0.00
N/A
10
DEA A POWER - 9day 1DE28AVO*1DEICACU
34.58
2.08
NA
DEA B POWER - 9day 1DE28BVO*1DEICBCU
0.00
N/A
N/A

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ACIS-AT-A-GLANCE STATUS LIGHTS
HW AND SW LEDS
HW End Time: Fri Mar 6 19:27:46 GMT 2026
SW End Time: Fri Mar 6 19:27:46 GMT 2026
ACIS MECH
End Time: Fri Mar 6 19:27:48 GMT 2026




MSID
1STAT[7654]ST    STATUS -->
1STAT7STRED (0) -> FIFO EmptyGREEN (1) -> FIFO Not Empty
1STAT6STRED (0) -> FIFO FullGREEN (1) -> FIFO Not Full
1STAT5STRED (0) -> BEP Held In ResetGREEN (1) -> BEP Not In Reset
1STAT4STRED (0) -> BEP A SelectedGREEN (1) -> BEP B Selected
MSID
1STAT[3210]ST    STATUS -->
1STAT3STRED (0) -> BEP Code InitializedGREEN (1) -> BEP Code Initializing
1STAT2STRED (0) -> Watchdog BootGREEN (1) -> Normal Boot
1STAT1STRED (0) -> Science ActiveGREEN (1) -> Science Idle
1STAT0ST0 or 1: BEP SW Is RunningBit Toggles Every 64s

MSID
DESCRIPTION
STATUS
1MDBUAONDoor Enable A
1MDBUBONDoor Enable B
1MODRAOPDoor Open Drive A
1MODRBOPDoor Open Drive B
1MCDRACLDoor Close Drive A
1MCDRBCLDoor Close Drive B
1VVDBAONVent Valve Enable A
1VVDBBONVent Valve Enable B
1VVODAOPVent Valve Open Drive A
1VVODBOPVent Valve Open Drive B
1VVCDACLVent Valve Close Drive A
1VVCDBCLVent Valve Close Drive B
1LVDBAONL V Enabled A
1LVDBBONL V Enabled B




















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ACIS AT A GLANCE
End Time: Fri Mar 6 19:27:48 GMT 2026
ACIS AT A GLANCE
End Time: Fri Mar 6 19:27:48 GMT 2026



MSID
DESCRIPTION
STATUS
1DPPSAXDPA POWER SUPPLY EN/DIS A
1DPPSADPA POWER SUPPLY ON/OFF A
1DPPSBXDPA POWER SUPPLY EN/DIS B
1DPPSBDPA POWER SUPPLY ON/OFF B
1DEPSAXDEA POWER SUPPLY EN/DIS A
1DEPSADEA POWER SUPPLY ON/OFF A

MSID
DESCRIPTION
STATUS
1DAHTAENDA HTR EN/DIS A
1DAHTAONDA HTR ON/OFF A
1DAHTBENDA HTR EN/DIS B
1DAHTBONDA HTR ON/OFF B
1DABOAENDA BAKE OUT EN/DIS A
1DABOAONDA BAKE OUT ON/OFF A
1DABOBENDA BAKE OUT EN/DIS B
1DABOBONDA BAKE OUT ON/OFF B
1DE28AOCDEA POWER SUPPLY +28V Over-Current Protection
1DE28BOCDEA POWER SUPPLY +28V Over-Current Protection
1DEMVAOCDEA POWER SUPPLY Multi-V Over-Current Protection
1DEMVBOCDEA POWER SUPPLY Multi-V Over-Current Protection
1DPCPAOCDPA POWER SUPPLY Over-Current Protection
1DPCPBOCDPA POWER SUPPLY Over-Current Protection
1DEPSBXDEA POWER SUPPLY EN/DIS B
1DEPSBDEA POWER SUPPLY ON/OFF B
























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THERMAL DATA

THERMAL CONTROL DATA: SIDE A and B
Start Time: Fri Mar 6 19:25:33 GMT 2026
End Time: Fri Mar 6 19:28:1 GMT 2026

MSID
DESCRIPTION
MEAN VALUE
SIGMA OF THE MEAN
# OF FRAMES
1CRAT - 9 day Cold Radiator Temp A
-118.35
0.00
10
1CRBT - 9 day Cold Radiator Temp B
404.81
0.00
10
1WRAT - 9 day Warm Radiator Temp A
-77.11
0.00
10
1WRBT - 9day Warm Radiator Temp B
-77.11
0.00
10
1DPAMYT - 9 day DPA -Y Panel Temp (RT810)
18.61
0.06
10
1DPAMZT - 9 day DPA -Z Panel Temp (RT830)
20.77
0.07
10
1DEAMZT - 9 day DEA -Z Panel Temp (RT830)
19.47
0.00
10
1SSPYT - 9 day Suppt Structure +Y Panel Temp (RT810)
17.44
0.05
10
1SSMYT - 9 day Suppt Structure -Y Panel Temp (RT811)
19.86
0.04
10
1PDEAAT - 9 day PSMC DEA Power Supply Temp A
32.52
0.34
10
1PDEABT - 9 day PSMC DEA Power Supply Temp B
24.88
0.63
10
1PIN1AT - 9 day PSMC Temp 1A
71.84
0.00
10
1CBAT - 9 day Camera Body Temp A
-59.89
0.00
10
1CBBT - 9 day Camera Body Temp B
-59.89
0.00
10
1DACTBT - 9 day DA Collimator-Top Temp B
-7.78
0.25
10

ISIM TEMPERATURES
 Start Time: Fri Mar 6 19:25:40 GMT 2026
End Time: Fri Mar 6 19:28:7 GMT 2026

MSID
DESCRIPTION
MEAN VALUE
SIGMA OF THE MEAN
# OF FRAMES
3TSMYDPT - 9 day -Y Shell (facing DPA)
-17.32
0.00
10
3TSPYFET - 9 day +Y Shell (facing HRC)
-42.26
0.00
10
3TSPZDET - 9 day +Z Shell (facing DEA)
2.63
0.00
10
3TSPZSPT - 9 day +Z Shell (facing SS)
7.62
0.00
10
3TSMXSPT - 9 day -X Shell (facing SS)
386.74
0.00
10
3TSMXCET - 9 day -X Shell (facing HRC)
25.08
0.00
10
3RCTUBPT - 9 day +X SIM (RCTU base)
10.67
0.00
10
3TTACS1T - 9 day TT at -Y foot
0.23
0.00
10
3TTACS2T - 9 day TT at +Y foot
0.65
0.00
10
3TTACS3T - 9 day TT at +Z foot
-6.46
0.00
10


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HEATER DATA
ACIS DA
Start Time: Fri Mar 6 19:23:14 GMT 2026
End Time: Fri Mar 6 19:28:9 GMT 2026

MSID
DESCRIPTION
MEAN VALUE
SIGMA OF THE MEAN
# OF FRAMES
1DAHHAVO - 9 day DA Housing Htr +28V Input A
0.00
0.00
10
1DAHHBVO - 9 day DA Housing Htr +28V Input B
0.00
0.00
10
1DAHAVO - 9 day Detector Assy. Htr Voltage A
0.00
0.00
10
1DAHBVO - 9 day Detector Assy. Htr Voltage B
0.00
0.00
10
1DAHACU - 9 day Detector Assy. Htr Current A
0.00
0.00
10
1DAHBCU - 9 day Detector Assy. Htr Current B
0.00
0.00
10
HTR A POWER - 9day 1DAHAVO*1DAHACU
0.00
NA
NA
HTR B POWER - 9day 1DAHBVO*1DAHBCU
0.00
NA
NA
1DAHAT - 9day Detector Assy. Housing Temp Offset A
21.30
0.26
10
1DAHBT - 9day Detector Assy. Housing Temp Offset B
10.60
0.62
10

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MECHANISMS' DATA
ACIS DOOR
Start Time: Fri Mar 6 19:25:34 GMT 2026
End Time: Fri Mar 6 19:28:1 GMT 2026

* MSID *
DESCRIPTION
MEAN VALUE
SIGMA OF THE MEAN
# OF FRAMES
1DACTAT - 9 day Door Angle Potentiometer
68.90
0.00
10
1OAHAT - 9 day Open Actuator Housing Temp A
-22.59
0.00
10
1OAHBT - 9 day Open Acutator Housing Temp B
-26.60
0.41
10
1MAHOATDoor Open Actuator Temp A
439.27
0.93
10
1MAHOBT Door Open Actuator Temp B
438.12
0.76
10
1MAHCATDoor Close Actuator Temp A
441.56
0.76
10
1MAHCBT Door Close Actuator Temp B
439.27
0.93
10


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Web Page Designed and Maintained by:
Gregg Germain gregg@head.cfa.harvard.edu

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