Page content updated: 2025:354:02:38:01 ( 9:38 PM Fri 19-Dec )

Key Snapshot and SOH Values (Δt = - 0:52)
Obsid31461
Format2_NORM
RadMonENAB
CPE StatusNORM
RA35.985
Dec-39.368
Roll312.795
Pitch100.58
Sim Z75624
Sim Focus-467
HETG angle77.59
LETG angle75.71
SCS 107INAC
SCS 128ACT
SCS 129ACT
SCS 130INAC
RadMonENAB
SCS 131ACT
SCS 132ACT
SCS 133INAC
Snapshot from 2025:354:01:45:03 (Δt = - 0:52)

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)
2025:353:14:57:05Obsid: 31272 SI: ACIS-S (12 ksec) Target: SDSS J160318.74 -11:40 9:57 AM Fri 19-Dec
2025:353:16:05:00Comm pass on DSS-65 (duration 1:00)-10:3311:05 AM Fri 19-Dec
2025:353:18:25:25Maneuver to 324.52630 -40.49151 264.000 [2025:353:19:11:49]- 8:12 1:25 PM Fri 19-Dec
2025:353:19:16:19ER Obsid: 41866 (0 ksec) Purpose: Intermediate Attitud - 7:21 2:16 PM Fri 19-Dec
2025:353:19:32:00Maneuver to 71.09554 12.36753 307.541 [2025:353:20:07:34]- 7:06 2:32 PM Fri 19-Dec
2025:353:20:12:04Obsid: 32060 SI: ACIS-S (12 ksec) Target: IRAS04416+1215 - 6:25 3:12 PM Fri 19-Dec
2025:353:23:33:44Maneuver to 35.99256 -39.36850 312.800 [2025:353:23:58:41]- 3:04 6:33 PM Fri 19-Dec
2025:354:00:03:11Obsid: 31461 SI: ACIS-S (20 ksec) Target: ACT-CL J0223.9- - 2:34 7:03 PM Fri 19-Dec
2025:354:00:50:00Comm pass on DSS-24 (duration 1:00)- 1:48 7:50 PM Fri 19-Dec
2025:354:02:38:01--------------- NOW --------------- 0:00 9:38 PM Fri 19-Dec
2025:354:05:39:13Maneuver to 82.60000 20.90000 297.642 [2025:354:06:07:29] 3:0112:39 AM Sat 20-Dec
2025:354:05:42:48Grating: HETG 3:0412:42 AM Sat 20-Dec
2025:354:05:44:51RADMON Disable 3:0612:44 AM Sat 20-Dec
2025:354:06:11:59ER Obsid: 41865 (3 ksec) Purpose: Perigee Attitude 3:33 1:11 AM Sat 20-Dec
2025:354:07:01:59Maneuver to 84.28740 27.44147 221.767 [2025:354:07:29:45] 4:23 2:01 AM Sat 20-Dec
2025:354:07:34:15ER Obsid: 41864 (3 ksec) Purpose: Perigee Attitude 4:56 2:34 AM Sat 20-Dec
2025:354:08:24:15Maneuver to 289.19635 19.02781 333.361 [2025:354:09:03:40] 5:46 3:24 AM Sat 20-Dec
2025:354:09:08:10ER Obsid: 41863 (3 ksec) Purpose: Perigee Attitude 6:30 4:08 AM Sat 20-Dec
2025:354:11:29:32Maneuver to 6.60000 59.80000 275.415 [2025:354:11:55:30] 8:51 6:29 AM Sat 20-Dec
2025:354:11:55:00Comm pass on DSS-34 (duration 1:00) 9:16 6:55 AM Sat 20-Dec
2025:354:12:00:00ER Obsid: 41862 (3 ksec) Purpose: Perigee Attitude 9:21 7:00 AM Sat 20-Dec
2025:354:14:30:56Maneuver to 84.28740 27.44147 224.427 [2025:354:14:55:30] 11:52 9:30 AM Sat 20-Dec
2025:354:15:00:00ER Obsid: 41861 (0 ksec) Purpose: Perigee Attitude 12:2110:00 AM Sat 20-Dec
2025:354:15:15:41Maneuver to 289.19635 19.02781 333.747 [2025:354:15:55:07] 12:3710:15 AM Sat 20-Dec
2025:354:15:59:37ER Obsid: 41860 (0 ksec) Purpose: Perigee Attitude 13:2110:59 AM Sat 20-Dec
2025:354:17:25:46Maneuver to 49.94181 41.53171 252.870 [2025:354:17:58:38] 14:4712:25 PM Sat 20-Dec
2025:354:17:26:20Grating: NONE 14:4812:26 PM Sat 20-Dec
2025:354:17:40:50RADMON Enable 15:0212:40 PM Sat 20-Dec
2025:354:18:03:08Obsid: 30311 SI: ACIS-I (13 ksec) Target: Perseus cluster 15:25 1:03 PM Sat 20-Dec
2025:354:21:39:48Maneuver to 332.95389 18.71591 294.807 [2025:354:22:05:57] 19:01 4:39 PM Sat 20-Dec
2025:354:22:10:27Obsid: 32047 SI: ACIS-S (10 ksec) Target: IIZw171 19:32 5:10 PM Sat 20-Dec
2025:355:00:54:07Load DEC1525A:CL355:0001 [2025:355:22:58:21] 22:16 7:54 PM Sat 20-Dec
2025:355:00:54:07Load DEC1525A:CL355:0001 [2025:355:22:58:21] 22:16 7:54 PM Sat 20-Dec
2025:355:00:57:07Maneuver to 49.94181 41.53086 253.227 [2025:355:01:23:16] 22:19 7:57 PM Sat 20-Dec
2025:355:01:27:46Obsid: 32054 SI: ACIS-I (11 ksec) Target: Perseus cluster 22:49 8:27 PM Sat 20-Dec
2025:355:03:00:00Comm pass on DSS-56 (duration 1:00) 1d 00:2110:00 PM Sat 20-Dec
2025:355:04:31:06Maneuver to 346.74492 4.56874 290.001 [2025:355:04:57:06] 1d 01:5311:31 PM Sat 20-Dec
2025:355:05:01:36Obsid: 32048 SI: ACIS-S (10 ksec) Target: PG2304+042 1d 02:2312:01 AM Sun 21-Dec
2025:355:07:48:16Maneuver to 49.94189 41.52970 253.538 [2025:355:08:14:17] 1d 05:10 2:48 AM Sun 21-Dec
2025:355:08:18:47Obsid: 32055 SI: ACIS-I (11 ksec) Target: Perseus cluster 1d 05:40 3:18 AM Sun 21-Dec
2025:355:11:22:07Maneuver to 353.75238 -8.73190 285.998 [2025:355:11:49:20] 1d 08:44 6:22 AM Sun 21-Dec
2025:355:11:50:00Comm pass on DSS-26 (duration 1:00) 1d 09:11 6:50 AM Sun 21-Dec
2025:355:11:53:50Obsid: 32050 SI: ACIS-S (10 ksec) Target: SDSSJ233504.22- 1d 09:15 6:53 AM Sun 21-Dec
2025:355:14:40:30Maneuver to 49.94199 41.52861 253.839 [2025:355:15:07:42] 1d 12:02 9:40 AM Sun 21-Dec
2025:355:15:12:12Obsid: 32056 SI: ACIS-I (11 ksec) Target: Perseus cluster 1d 12:3410:12 AM Sun 21-Dec
2025:355:17:25:00Comm pass on DSS-56 (duration 1:00) 1d 14:4612:25 PM Sun 21-Dec
2025:355:18:15:32Maneuver to 149.96544 2.41653 64.000 [2025:355:19:00:31] 1d 15:37 1:15 PM Sun 21-Dec
2025:355:19:05:01Obsid: 32053 SI: ACIS-I (14 ksec) Target: Center of COSMO 1d 16:27 2:05 PM Sun 21-Dec
2025:355:22:55:21Load DEC2225A:CL355:2201 [2025:357:10:45:01] 1d 20:17 5:55 PM Sun 21-Dec
2025:355:22:55:21Load DEC2225A:CL355:2201 [2025:357:10:45:01] 1d 20:17 5:55 PM Sun 21-Dec
2025:355:22:58:21Maneuver to 35.62216 42.35433 264.993 [2025:355:23:43:40] 1d 20:20 5:58 PM Sun 21-Dec
2025:355:23:48:10Obsid: 29826 SI: ACIS-S (15 ksec) Target: SN 1986J 1d 21:10 6:48 PM Sun 21-Dec
2025:356:01:15:00Comm pass on DSS-26 (duration 1:00) 1d 22:36 8:15 PM Sun 21-Dec
2025:356:03:58:10Maneuver to 97.66143 32.14856 141.001 [2025:356:04:30:15] 2d 01:2010:58 PM Sun 21-Dec
2025:356:04:34:45ER Obsid: 41859 (0 ksec) Purpose: Intermediate Attitud 2d 01:5611:34 PM Sun 21-Dec
2025:356:04:50:26Maneuver to 217.18534 17.37748 46.003 [2025:356:05:24:55] 2d 02:1211:50 PM Sun 21-Dec
2025:356:05:29:25Obsid: 32062 SI: ACIS-S (10 ksec) Target: SDSS J142846.71 2d 02:5112:29 AM Mon 22-Dec
2025:356:08:16:05Maneuver to 106.04050 38.49725 133.954 [2025:356:08:48:27] 2d 05:38 3:16 AM Mon 22-Dec
2025:356:08:52:57Obsid: 31290 SI: ACIS-S (10 ksec) Target: 2MASX J07040344 2d 06:14 3:52 AM Mon 22-Dec
2025:356:11:39:37Maneuver to 270.90037 25.75988 359.611 [2025:356:12:16:11] 2d 09:01 6:39 AM Mon 22-Dec
2025:356:12:20:41ER Obsid: 41858 (0 ksec) Purpose: Intermediate Attitud 2d 09:42 7:20 AM Mon 22-Dec
2025:356:12:36:22Maneuver to 4.80565 59.15909 279.105 [2025:356:13:02:59] 2d 09:58 7:36 AM Mon 22-Dec
2025:356:12:36:56Grating: HETG 2d 09:58 7:36 AM Mon 22-Dec
2025:356:13:07:29Obsid: 30087 SI: ACIS-S (11 ksec) Target: TV Cassiopeia 2d 10:29 8:07 AM Mon 22-Dec
2025:356:14:45:00Comm pass on DSS-24 (duration 1:00) 2d 12:06 9:45 AM Mon 22-Dec
2025:356:16:17:29Maneuver to 68.02954 -5.37137 323.267 [2025:356:16:52:47] 2d 13:3911:17 AM Mon 22-Dec
2025:356:16:21:03Grating: NONE 2d 13:4311:21 AM Mon 22-Dec
2025:356:16:57:17Obsid: 32075 SI: ACIS-S (15 ksec) Target: AT2025aarm 2d 14:1911:57 AM Mon 22-Dec
2025:356:18:05:00Comm pass on DSS-56 (duration 1:00) 2d 15:26 1:05 PM Mon 22-Dec
2025:356:21:09:47Maneuver to 90.90000 11.90000 359.529 [2025:356:21:31:14] 2d 18:31 4:09 PM Mon 22-Dec
2025:356:21:13:22Grating: HETG 2d 18:35 4:13 PM Mon 22-Dec
2025:356:21:15:25RADMON Disable 2d 18:37 4:15 PM Mon 22-Dec
2025:356:21:35:44ER Obsid: 41857 (3 ksec) Purpose: Perigee Attitude 2d 18:57 4:35 PM Mon 22-Dec
2025:356:22:25:44Maneuver to 90.90000 11.90000 359.320 [2025:356:22:29:44] 2d 19:47 5:25 PM Mon 22-Dec
2025:356:22:34:14ER Obsid: 41856 (3 ksec) Purpose: Perigee Attitude 2d 19:56 5:34 PM Mon 22-Dec
2025:356:23:24:14Maneuver to 105.60000 14.20000 53.846 [2025:356:23:48:27] 2d 20:46 6:24 PM Mon 22-Dec
2025:356:23:52:57ER Obsid: 41855 (3 ksec) Purpose: Perigee Attitude 2d 21:14 6:52 PM Mon 22-Dec
2025:357:02:34:27Maneuver to 213.49913 -37.48984 88.698 [2025:357:03:10:30] 2d 23:56 9:34 PM Mon 22-Dec

CXO and GOES rates
CXOGOESLimit
HRC shield016250
HRC MCP637430
P4GM---0.03300
P41GM---0.018.47
CXO: from snapshot at 2025:354:01:45:03 (- 0:52)
GOES proxies: scaled 15 min average of GOES-16
Last avgs at HRC: - 0:18   P4GM: - 0:18   P41GM: - 0:18
ACE rates
Value2hr limitOrbital limitHours to
Orbital limit
Current flux105000012000> 30
2hr avg flux13.25000012000> 30
Orbital fluence9.3x105---2.0x109---
ACE data from 2025:354:02:20:00 (- 0:18)
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 18/2100Z to 19/2100Z: The geomagnetic field has been at quiet to unsettled levels for the past 24 hours. Solar wind speed reached a peak of 906 km/s at 18/2313Z. Total IMF reached 5 nT at 19/0537Z. The maximum southward component of Bz reached -4 nT at 19/0054Z. Electrons greater than 2 MeV at geosynchronous orbit reached a peak level of 3239 pfu. IIB. Geophysical Activity Forecast: The geomagnetic field is expected to be at quiet to unsettled levels on day one (20 Dec), quiet levels on day two (21 Dec) and quiet to minor storm levels on day three (22 Dec).
Solar ActivityAnalysis of Solar Active Regions and Activity from 18/2100Z to 19/2100Z: Solar activity has been at moderate levels for the past 24 hours. There are currently 3 numbered sunspot regions on the disk. IB. Solar Activity Forecast: Solar activity is likely to be low on days one, two, and three (20 Dec, 21 Dec, 22 Dec).

Solar X-ray Activity

Solar Wind Data ( SOHO ACE )

Solar Flare Monitor