Page content updated: 2026:231:02:19:01 ( 10:19 PM Tue 18-Aug )

Key Snapshot and SOH Values (from current comm)
Obsid30089
Format2_EPS
RadMonENAB
CPE StatusNORM
RA4.873
Dec59.129
Roll143.000
Pitch101.61
Sim Z73175
Sim Focus-467
HETG angle5.59
LETG angle75.71
SCS 107INAC
SCS 128ACT
SCS 129ACT
SCS 130ACT
RadMonENAB
SCS 131ACT
SCS 132ACT
SCS 133ACT
Snapshot from 2026:231:02:17:39 (from current comm)

acePred
NOW
Cursor date
Cursor delta
Next comm
Delta
Station
Activity
ACE fluence
ACE P3 flux
HRC proxy
--- Latest values ---
ACE P3 flux
ACE 2hr avg
HRC proxy
SIM-Z
Pitch
RA
Dec
Roll
PCAD
Obsid
SI
Grating
SI mode
Power cmd
CCD, FEP
Vid, Clock

Chandra Events (Load link unavailable)
Time (UT)EventDelta timeTime (Eastern)
2026:230:14:20:09Maneuver to 326.87783 6.62020 194.998 [2026:230:14:57:26]-11:5810:20 AM Tue 18-Aug
2026:230:15:02:34Obsid: 31037 SI: HRC-I (8 ksec) Target: TIC466376085 -11:1611:02 AM Tue 18-Aug
2026:230:17:15:54Maneuver to 4.87980 59.13167 142.994 [2026:230:17:41:32]- 9:03 1:15 PM Tue 18-Aug
2026:230:17:16:43Grating: HETG- 9:02 1:16 PM Tue 18-Aug
2026:230:17:46:37Obsid: 30089 SI: ACIS-S (40 ksec) Target: TV Cassiopeia - 8:32 1:46 PM Tue 18-Aug
2026:230:21:30:00Comm pass on DSS-54 (duration 2:00)- 4:49 5:30 PM Tue 18-Aug
2026:231:02:19:01--------------- NOW --------------- 0:0010:19 PM Tue 18-Aug
2026:231:02:25:00Comm pass on DSS-23 (duration 1:00) 0:0510:25 PM Tue 18-Aug
2026:231:04:53:17Maneuver to 326.87819 6.61522 183.607 [2026:231:05:18:05] 2:3412:53 AM Wed 19-Aug
2026:231:04:56:51Grating: NONE 2:3712:56 AM Wed 19-Aug
2026:231:05:15:00Comm pass on DSS-24 (duration 2:00) 2:55 1:15 AM Wed 19-Aug
2026:231:05:35:42Obsid: 32504 SI: HRC-I (9 ksec) Target: TIC466376085 3:16 1:35 AM Wed 19-Aug
2026:231:08:11:02Load AUG1726A:CL231:0801 [2026:233:17:38:47] 5:52 4:11 AM Wed 19-Aug
2026:231:08:11:02Load AUG1726A:CL231:0801 [2026:233:17:38:47] 5:52 4:11 AM Wed 19-Aug
2026:231:08:14:02Maneuver to 210.88939 54.33388 278.017 [2026:231:08:47:11] 5:55 4:14 AM Wed 19-Aug
2026:231:08:51:41Obsid: 31167 SI: ACIS-S (15 ksec) Target: SN 2023ixf 6:32 4:51 AM Wed 19-Aug
2026:231:12:55:00Comm pass on DSS-56 (duration 1:00) 10:35 8:55 AM Wed 19-Aug
2026:231:13:01:41Maneuver to 35.65504 42.31485 114.886 [2026:231:13:31:46] 10:42 9:01 AM Wed 19-Aug
2026:231:13:36:16Obsid: 29830 SI: ACIS-S (15 ksec) Target: SN 1986J 11:17 9:36 AM Wed 19-Aug
2026:231:17:46:16Maneuver to 326.87533 6.61766 193.998 [2026:231:18:15:29] 15:27 1:46 PM Wed 19-Aug
2026:231:18:28:41Obsid: 32505 SI: HRC-I (6 ksec) Target: TIC466376085 16:09 2:28 PM Wed 19-Aug
2026:231:20:17:01Maneuver to 210.89021 54.33315 278.017 [2026:231:20:50:04] 17:58 4:17 PM Wed 19-Aug
2026:231:20:54:34Obsid: 32506 SI: ACIS-S (13 ksec) Target: SN 2023ixf 18:35 4:54 PM Wed 19-Aug
2026:231:22:20:00Comm pass on DSS-56 (duration 1:00) 20:00 6:20 PM Wed 19-Aug
2026:232:00:31:14Maneuver to 273.33880 -12.75611 263.574 [2026:232:01:01:23] 22:12 8:31 PM Wed 19-Aug
2026:232:01:05:53Obsid: 31002 SI: ACIS-I (13 ksec) Target: PSR J1813-1246 22:46 9:05 PM Wed 19-Aug
2026:232:03:15:00Comm pass on DSS-24 (duration 0:45) 1d 00:5511:15 PM Wed 19-Aug
2026:232:04:42:33Maneuver to 267.17760 -27.14486 271.123 [2026:232:04:56:19] 1d 02:2312:42 AM Thu 20-Aug
2026:232:05:03:49Obsid: 30130 SI: ACIS-S (28 ksec) Target: SNR G1.9+0.3 1d 02:44 1:03 AM Thu 20-Aug
2026:232:10:00:00Comm pass on DSS-34 (duration 1:00) 1d 07:40 6:00 AM Thu 20-Aug
2026:232:13:00:29Maneuver to 326.00000 -14.00000 295.022 [2026:232:13:23:58] 1d 10:41 9:00 AM Thu 20-Aug
2026:232:13:04:03Grating: HETG 1d 10:45 9:04 AM Thu 20-Aug
2026:232:13:06:06RADMON Disable 1d 10:47 9:06 AM Thu 20-Aug
2026:232:13:28:28ER Obsid: 41216 (3 ksec) Purpose: Perigee Attitude 1d 11:09 9:28 AM Thu 20-Aug
2026:232:16:06:41Maneuver to 333.00000 -11.40000 106.715 [2026:232:16:55:30] 1d 13:4712:06 PM Thu 20-Aug
2026:232:17:00:00ER Obsid: 41215 (3 ksec) Purpose: Perigee Attitude 1d 14:40 1:00 PM Thu 20-Aug
2026:232:17:00:00Comm pass on DSS-34 (duration 1:00) 1d 14:40 1:00 PM Thu 20-Aug
2026:232:18:45:58Maneuver to 103.00000 42.00000 67.805 [2026:232:19:25:30] 1d 16:26 2:45 PM Thu 20-Aug
2026:232:19:30:00ER Obsid: 41214 (3 ksec) Purpose: Perigee Attitude 1d 17:10 3:30 PM Thu 20-Aug
2026:232:23:14:23Maneuver to 150.00000 -37.00000 180.267 [2026:232:23:55:30] 1d 20:55 7:14 PM Thu 20-Aug
2026:233:00:00:00ER Obsid: 41213 (3 ksec) Purpose: Perigee Attitude 1d 21:40 8:00 PM Thu 20-Aug
2026:233:01:26:02Maneuver to 332.28125 -47.17849 4.120 [2026:233:01:58:19] 1d 23:07 9:26 PM Thu 20-Aug
2026:233:01:49:17RADMON Enable 1d 23:30 9:49 PM Thu 20-Aug
2026:233:02:02:49Obsid: 32501 SI: ACIS-S (19 ksec) Target: NGC 7213 1d 23:4310:02 PM Thu 20-Aug
2026:233:02:20:00Comm pass on DSS-23 (duration 1:00) 2d 00:0010:20 PM Thu 20-Aug
2026:233:07:19:29Maneuver to 46.77850 -6.47810 100.946 [2026:233:07:50:45] 2d 05:00 3:19 AM Fri 21-Aug
2026:233:07:23:04Grating: NONE 2d 05:04 3:23 AM Fri 21-Aug
2026:233:07:55:15Obsid: 31452 SI: ACIS-S (12 ksec) Target: ACT-CL J0307.0- 2d 05:36 3:55 AM Fri 21-Aug
2026:233:11:15:15Maneuver to 352.21837 5.23930 128.531 [2026:233:11:40:01] 2d 08:56 7:15 AM Fri 21-Aug
2026:233:11:30:00Comm pass on DSS-56 (duration 1:00) 2d 09:10 7:30 AM Fri 21-Aug
2026:233:11:57:40Obsid: 30447 SI: HRC-I (7 ksec) Target: G29-38 2d 09:38 7:57 AM Fri 21-Aug
2026:233:14:02:40Maneuver to 40.66167 -21.56388 94.560 [2026:233:14:28:40] 2d 11:4310:02 AM Fri 21-Aug
2026:233:14:33:10Obsid: 30408 SI: ACIS-S (28 ksec) Target: ClG J0242-2132 2d 12:1410:33 AM Fri 21-Aug
2026:233:15:15:00Comm pass on DSS-53 (duration 1:00) 2d 12:5511:15 AM Fri 21-Aug
2026:233:22:16:50Load AUG1726A:CL233:2201 [2026:235:21:59:21] 2d 19:57 6:16 PM Fri 21-Aug
2026:233:22:16:50Load AUG1726A:CL233:2201 [2026:235:21:59:21] 2d 19:57 6:16 PM Fri 21-Aug
2026:233:22:19:50Maneuver to 53.42804 -5.10915 102.001 [2026:233:22:34:33] 2d 20:00 6:19 PM Fri 21-Aug
2026:233:22:45:07Obsid: 29937 SI: ACIS-S (30 ksec) Target: NGC 1358 2d 20:26 6:45 PM Fri 21-Aug

CXO and GOES rates
CXOGOESLimit
HRC shield017250
HRC MCP458930
P4GM---0.03300
P41GM---0.018.47
CXO: from snapshot at 2026:231:02:17:39 (- 0:01)
GOES proxies: scaled 15 min average of GOES-16
Last avgs at HRC: - 0:19   P4GM: - 0:19   P41GM: - 0:19
ACE rates
Value2hr limitOrbital limitHours to
Orbital limit
Current flux12.35000012000> 30
2hr avg flux12.95000012000> 30
Orbital fluence5.0x105---2.0x109---
ACE data from 2026:231:02:05:00 (- 0:14)
Orbital fluence: integrated attenuated ACE flux
Grating attenuation not factored into current or 2hr flux numbers
RADMON and SOT alert limits information

ACE particle rates ( MTA SWPC )

GOES particle rates

GOES proxy for HRC shield rates

3-day Solar-Geophysical Forecast
Geophysical ActivityGeophysical Activity Summary 17/2100Z to 18/2100Z: The geomagnetic field has been at quiet to minor storm levels for the past 24 hours. Solar wind speed reached a peak of 578 km/s. Total IMF reached 15 nT. The maximum southward component of Bz reached -11 nT. Electrons greater than 2 MeV at geosynchronous orbit reached a peak level of 349 pfu. IIB. Geophysical Activity Forecast: The geomagnetic field is expected to be at quiet to minor storm levels on day one (19 Aug) and quiet to active levels on days two and three (20 Aug, 21 Aug).
Solar ActivityAnalysis of Solar Active Regions and Activity from 17/2100Z to 18/2100Z: Solar activity has been at low levels for the past 24 hours. There are currently 4 numbered sunspot regions on the disk. IB. Solar Activity Forecast: Solar activity is expected to be low with a chance for M-class flares on days one, two, and three (19 Aug, 20 Aug, 21 Aug).

Solar X-ray Activity

Solar Wind Data ( SOHO ACE )

Solar Flare Monitor