Page content updated: 2025:363:14:39:00 ( 9:39 AM Mon 29-Dec )

Key Snapshot and SOH Values (Δt = - 0:03)
Obsid29660
Format2_NORM
RadMonENAB
CPE StatusNORM
RA189.246
Dec14.215
Roll58.497
Pitch94.63
Sim Z75624
Sim Focus-467
HETG angle77.59
LETG angle75.71
SCS 107INAC
SCS 128INAC
SCS 129ACT
SCS 130ACT
RadMonENAB
SCS 131INAC
SCS 132ACT
SCS 133ACT
Snapshot from 2025:363:14:35:41 (Δt = - 0:03)

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)
2025:363:02:40:37Load DEC2925B:CL363:0207 [2025:364:20:23:30]-11:58 9:40 PM Sun 28-Dec
2025:363:02:40:37Load DEC2925B:CL363:0207 [2025:364:20:23:30]-11:58 9:40 PM Sun 28-Dec
2025:363:02:43:37Maneuver to 122.19944 14.33110 65.042 [2025:363:03:14:21]-11:55 9:43 PM Sun 28-Dec
2025:363:03:18:51Obsid: 31322 SI: ACIS-S (19 ksec) Target: ACT-CLJ0808.7+1 -11:2010:18 PM Sun 28-Dec
2025:363:03:30:00Comm pass on DSS-65 (duration 1:00)-11:0910:30 PM Sun 28-Dec
2025:363:08:43:51Maneuver to 205.67824 5.04933 61.000 [2025:363:09:13:22]- 5:55 3:43 AM Mon 29-Dec
2025:363:09:17:52Obsid: 30000 SI: ACIS-S (14 ksec) Target: 4C +05.57 - 5:21 4:17 AM Mon 29-Dec
2025:363:13:21:12Maneuver to 189.24376 14.21442 58.498 [2025:363:13:35:21]- 1:17 8:21 AM Mon 29-Dec
2025:363:13:40:00Comm pass on DSS-24 (duration 1:00)- 0:59 8:40 AM Mon 29-Dec
2025:363:13:46:29Obsid: 29660 SI: ACIS-S (38 ksec) Target: NGC4571 - 0:52 8:46 AM Mon 29-Dec
2025:363:14:39:00--------------- NOW --------------- 0:00 9:39 AM Mon 29-Dec
2025:364:00:19:49Maneuver to 117.40185 28.54974 103.544 [2025:364:00:46:09] 9:40 7:19 PM Mon 29-Dec
2025:364:00:30:00Comm pass on DSS-36 (duration 1:00) 9:51 7:30 PM Mon 29-Dec
2025:364:00:50:39Obsid: 31297 SI: ACIS-S (14 ksec) Target: SDSS J074932.95 10:11 7:50 PM Mon 29-Dec
2025:364:04:57:19Maneuver to 205.67998 5.05243 64.744 [2025:364:05:27:30] 14:1811:57 PM Mon 29-Dec
2025:364:05:32:00Obsid: 32083 SI: ACIS-S (16 ksec) Target: 4C +05.57 14:5312:32 AM Tue 30-Dec
2025:364:10:07:47Maneuver to 120.06205 31.39798 109.017 [2025:364:10:37:30] 19:28 5:07 AM Tue 30-Dec
2025:364:10:42:00Obsid: 31265 SI: ACIS-S (13 ksec) Target: SDSS J080010.70 20:03 5:42 AM Tue 30-Dec
2025:364:14:18:40Maneuver to 205.67843 5.05202 61.000 [2025:364:14:48:29] 23:39 9:18 AM Tue 30-Dec
2025:364:14:30:00Comm pass on DSS-24 (duration 1:00) 23:51 9:30 AM Tue 30-Dec
2025:364:14:52:59Obsid: 32084 SI: ACIS-S (17 ksec) Target: 4C +05.57 1d 00:13 9:52 AM Tue 30-Dec
2025:364:19:41:11Maneuver to 108.00000 24.00000 94.864 [2025:364:20:13:17] 1d 05:02 2:41 PM Tue 30-Dec
2025:364:19:44:45Grating: HETG 1d 05:05 2:44 PM Tue 30-Dec
2025:364:19:46:48RADMON Disable 1d 05:07 2:46 PM Tue 30-Dec
2025:364:20:17:47ER Obsid: 41843 (3 ksec) Purpose: Perigee Attitude 1d 05:38 3:17 PM Tue 30-Dec
2025:364:21:04:47Load DEC2925B:CL364:2107 [2026:001:14:56:20] 1d 06:25 4:04 PM Tue 30-Dec
2025:364:21:04:47Load DEC2925B:CL364:2107 [2026:001:14:56:20] 1d 06:25 4:04 PM Tue 30-Dec
2025:364:21:07:47Maneuver to 105.24580 30.13432 144.300 [2025:364:21:29:35] 1d 06:28 4:07 PM Tue 30-Dec
2025:364:21:34:05ER Obsid: 41842 (3 ksec) Purpose: Perigee Attitude 1d 06:55 4:34 PM Tue 30-Dec
2025:364:22:24:05Maneuver to 283.54392 34.18644 356.071 [2025:364:23:01:17] 1d 07:45 5:24 PM Tue 30-Dec
2025:364:23:05:47ER Obsid: 41841 (3 ksec) Purpose: Perigee Attitude 1d 08:26 6:05 PM Tue 30-Dec
2025:364:23:55:47Maneuver to 97.41210 59.96013 183.982 [2025:365:00:25:50] 1d 09:16 6:55 PM Tue 30-Dec
2025:365:00:30:20ER Obsid: 41840 (3 ksec) Purpose: Perigee Attitude 1d 09:51 7:30 PM Tue 30-Dec
2025:365:02:52:55Maneuver to 105.00000 28.00000 137.131 [2025:365:03:15:30] 1d 12:13 9:52 PM Tue 30-Dec
2025:365:03:20:00ER Obsid: 41839 (3 ksec) Purpose: Perigee Attitude 1d 12:4110:20 PM Tue 30-Dec
2025:365:03:35:00Comm pass on DSS-56 (duration 0:55) 1d 12:5610:35 PM Tue 30-Dec
2025:365:04:10:00Maneuver to 250.28083 29.67780 31.971 [2025:365:04:46:15] 1d 13:3111:10 PM Tue 30-Dec
2025:365:04:50:45ER Obsid: 41838 (3 ksec) Purpose: Perigee Attitude 1d 14:1111:50 PM Tue 30-Dec
2025:365:06:45:39Maneuver to 258.18234 64.03776 16.024 [2025:365:07:04:35] 1d 16:06 1:45 AM Wed 31-Dec
2025:365:06:46:14Grating: NONE 1d 16:07 1:46 AM Wed 31-Dec
2025:365:06:46:47RADMON Enable 1d 16:07 1:46 AM Wed 31-Dec
2025:365:07:13:24Obsid: 30426 SI: ACIS-I (12 ksec) Target: Abell 2255 1d 16:34 2:13 AM Wed 31-Dec
2025:365:10:33:24Maneuver to 49.93860 41.52762 262.520 [2025:365:11:01:45] 1d 19:54 5:33 AM Wed 31-Dec
2025:365:11:06:15Obsid: 30291 SI: ACIS-I (15 ksec) Target: Perseus cluster 1d 20:27 6:06 AM Wed 31-Dec
2025:365:11:15:00Comm pass on DSS-24 (duration 1:00) 1d 20:36 6:15 AM Wed 31-Dec
2025:365:15:27:55Maneuver to 258.18577 64.03868 17.020 [2025:365:15:56:10] 2d 00:4810:27 AM Wed 31-Dec
2025:365:16:00:40Obsid: 32088 SI: ACIS-I (19 ksec) Target: Abell 2255 2d 01:2111:00 AM Wed 31-Dec
2025:365:16:25:00Comm pass on DSS-65 (duration 1:00) 2d 01:4611:25 AM Wed 31-Dec
2025:365:21:24:00Maneuver to 117.48318 33.94792 119.988 [2025:365:21:53:05] 2d 06:45 4:24 PM Wed 31-Dec
2025:365:21:57:35Obsid: 31287 SI: ACIS-S (10 ksec) Target: UGC 04040 2d 07:18 4:57 PM Wed 31-Dec
2026:001:00:44:15Maneuver to 179.00000 -23.00000 64.094 [2026:001:01:15:51] 2d 10:05 7:44 PM Wed 31-Dec
2026:001:01:15:51ER Obsid: 41837 (0 ksec) Purpose: Intermediate Attitud 2d 10:36 8:15 PM Wed 31-Dec
2026:001:01:16:12Maneuver to 225.95130 -41.79824 90.610 [2026:001:01:36:50] 2d 10:37 8:16 PM Wed 31-Dec
2026:001:01:41:20Obsid: 31587 SI: ACIS-I (12 ksec) Target: sn1006 NE 2d 11:02 8:41 PM Wed 31-Dec
2026:001:03:25:00Comm pass on DSS-54 (duration 1:00) 2d 12:4610:25 PM Wed 31-Dec
2026:001:05:09:40Maneuver to 103.00000 -66.00000 1.498 [2026:001:05:35:42] 2d 14:3012:09 AM Thu 01-Jan
2026:001:05:35:42ER Obsid: 41836 (0 ksec) Purpose: Intermediate Attitud 2d 14:5612:35 AM Thu 01-Jan
2026:001:05:36:03Maneuver to 40.63338 -21.52313 289.994 [2026:001:06:01:05] 2d 14:5712:36 AM Thu 01-Jan
2026:001:06:05:35Obsid: 30403 SI: ACIS-S (30 ksec) Target: ClG J0242-2132 2d 15:26 1:05 AM Thu 01-Jan
2026:001:13:10:00Comm pass on DSS-26 (duration 1:00) 2d 22:31 8:10 AM Thu 01-Jan
2026:001:14:25:35Maneuver to 97.85836 21.86650 299.007 [2026:001:14:52:24] 2d 23:46 9:25 AM Thu 01-Jan

CXO and GOES rates
CXOGOESLimit
HRC shield016250
HRC MCP484430
P4GM---0.04300
P41GM---0.008.47
CXO: from snapshot at 2025:363:14:35:41 (- 0:03)
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 flux16.35000012000> 30
2hr avg flux21.85000012000> 30
Orbital fluence9.3x105---2.0x109---
ACE data from 2025:363:14:25:00 (- 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 27/2100Z to 28/2100Z: The geomagnetic field has been at quiet to unsettled levels for the past 24 hours. Solar wind speed reached a peak of 604 km/s at 28/1526Z. Total IMF reached 7 nT at 28/0913Z. The maximum southward component of Bz reached -5 nT at 28/0901Z. Electrons greater than 2 MeV at geosynchronous orbit reached a peak level of 8999 pfu. IIB. Geophysical Activity Forecast: The geomagnetic field is expected to be at quiet levels on days one, two, and three (29 Dec, 30 Dec, 31 Dec). Protons have a slight chance of crossing threshold on days one, two, and three (29 Dec, 30 Dec, 31 Dec).
Solar ActivityAnalysis of Solar Active Regions and Activity from 27/2100Z to 28/2100Z: Solar activity has been at low levels for the past 24 hours. There are currently 10 numbered sunspot regions on the disk. IB. Solar Activity Forecast: Solar activity is expected to be low with a chance for M-class flares and a slight chance for an X-class flare on days one, two, and three (29 Dec, 30 Dec, 31 Dec).

Solar X-ray Activity

Solar Wind Data ( SOHO ACE )

Solar Flare Monitor