Page content updated: 2025:364:03:49:00 ( 10:49 PM Mon 29-Dec )

Key Snapshot and SOH Values (Δt = - 2:21)
Obsid31297
Format2_NORM
RadMonENAB
CPE StatusNORM
RA117.401
Dec28.552
Roll103.544
Pitch162.37
Sim Z75624
Sim Focus-467
HETG angle77.59
LETG angle75.71
SCS 107INAC
SCS 128ACT
SCS 129ACT
SCS 130ACT
RadMonENAB
SCS 131ACT
SCS 132ACT
SCS 133ACT
Snapshot from 2025:364:01:27:51 (Δt = - 2:21)

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)
2025:364:00:19:49Maneuver to 117.40185 28.54974 103.544 [2025:364:00:46:09]- 3:29 7:19 PM Mon 29-Dec
2025:364:00:30:00Comm pass on DSS-36 (duration 1:00)- 3:19 7:30 PM Mon 29-Dec
2025:364:00:50:39Obsid: 31297 SI: ACIS-S (14 ksec) Target: SDSS J074932.95 - 2:58 7:50 PM Mon 29-Dec
2025:364:03:49:00--------------- NOW --------------- 0:0010:49 PM Mon 29-Dec
2025:364:04:57:19Maneuver to 205.67998 5.05243 64.744 [2025:364:05:27:30] 1:0811:57 PM Mon 29-Dec
2025:364:05:32:00Obsid: 32083 SI: ACIS-S (16 ksec) Target: 4C +05.57 1:4312:32 AM Tue 30-Dec
2025:364:10:07:47Maneuver to 120.06205 31.39798 109.017 [2025:364:10:37:30] 6:18 5:07 AM Tue 30-Dec
2025:364:10:42:00Obsid: 31265 SI: ACIS-S (13 ksec) Target: SDSS J080010.70 6:53 5:42 AM Tue 30-Dec
2025:364:14:18:40Maneuver to 205.67843 5.05202 61.000 [2025:364:14:48:29] 10:29 9:18 AM Tue 30-Dec
2025:364:14:30:00Comm pass on DSS-24 (duration 1:00) 10:41 9:30 AM Tue 30-Dec
2025:364:14:52:59Obsid: 32084 SI: ACIS-S (17 ksec) Target: 4C +05.57 11:03 9:52 AM Tue 30-Dec
2025:364:19:41:11Maneuver to 108.00000 24.00000 94.864 [2025:364:20:13:17] 15:52 2:41 PM Tue 30-Dec
2025:364:19:44:45Grating: HETG 15:55 2:44 PM Tue 30-Dec
2025:364:19:46:48RADMON Disable 15:57 2:46 PM Tue 30-Dec
2025:364:20:17:47ER Obsid: 41843 (3 ksec) Purpose: Perigee Attitude 16:28 3:17 PM Tue 30-Dec
2025:364:21:04:47Load DEC2925B:CL364:2107 [2026:001:14:56:20] 17:15 4:04 PM Tue 30-Dec
2025:364:21:04:47Load DEC2925B:CL364:2107 [2026:001:14:56:20] 17:15 4:04 PM Tue 30-Dec
2025:364:21:07:47Maneuver to 105.24580 30.13432 144.300 [2025:364:21:29:35] 17:18 4:07 PM Tue 30-Dec
2025:364:21:34:05ER Obsid: 41842 (3 ksec) Purpose: Perigee Attitude 17:45 4:34 PM Tue 30-Dec
2025:364:22:24:05Maneuver to 283.54392 34.18644 356.071 [2025:364:23:01:17] 18:35 5:24 PM Tue 30-Dec
2025:364:23:05:47ER Obsid: 41841 (3 ksec) Purpose: Perigee Attitude 19:16 6:05 PM Tue 30-Dec
2025:364:23:55:47Maneuver to 97.41210 59.96013 183.982 [2025:365:00:25:50] 20:06 6:55 PM Tue 30-Dec
2025:365:00:30:20ER Obsid: 41840 (3 ksec) Purpose: Perigee Attitude 20:41 7:30 PM Tue 30-Dec
2025:365:02:52:55Maneuver to 105.00000 28.00000 137.131 [2025:365:03:15:30] 23:03 9:52 PM Tue 30-Dec
2025:365:03:20:00ER Obsid: 41839 (3 ksec) Purpose: Perigee Attitude 23:3110:20 PM Tue 30-Dec
2025:365:03:35:00Comm pass on DSS-56 (duration 0:55) 23:4610:35 PM Tue 30-Dec
2025:365:04:10:00Maneuver to 250.28083 29.67780 31.971 [2025:365:04:46:15] 1d 00:2111:10 PM Tue 30-Dec
2025:365:04:50:45ER Obsid: 41838 (3 ksec) Purpose: Perigee Attitude 1d 01:0111:50 PM Tue 30-Dec
2025:365:06:45:39Maneuver to 258.18234 64.03776 16.024 [2025:365:07:04:35] 1d 02:56 1:45 AM Wed 31-Dec
2025:365:06:46:14Grating: NONE 1d 02:57 1:46 AM Wed 31-Dec
2025:365:06:46:47RADMON Enable 1d 02:57 1:46 AM Wed 31-Dec
2025:365:07:13:24Obsid: 30426 SI: ACIS-I (12 ksec) Target: Abell 2255 1d 03:24 2:13 AM Wed 31-Dec
2025:365:10:33:24Maneuver to 49.93860 41.52762 262.520 [2025:365:11:01:45] 1d 06:44 5:33 AM Wed 31-Dec
2025:365:11:06:15Obsid: 30291 SI: ACIS-I (15 ksec) Target: Perseus cluster 1d 07:17 6:06 AM Wed 31-Dec
2025:365:11:15:00Comm pass on DSS-24 (duration 1:00) 1d 07:26 6:15 AM Wed 31-Dec
2025:365:15:27:55Maneuver to 258.18577 64.03868 17.020 [2025:365:15:56:10] 1d 11:3810:27 AM Wed 31-Dec
2025:365:16:00:40Obsid: 32088 SI: ACIS-I (19 ksec) Target: Abell 2255 1d 12:1111:00 AM Wed 31-Dec
2025:365:16:25:00Comm pass on DSS-65 (duration 1:00) 1d 12:3611:25 AM Wed 31-Dec
2025:365:21:24:00Maneuver to 117.48318 33.94792 119.988 [2025:365:21:53:05] 1d 17:35 4:24 PM Wed 31-Dec
2025:365:21:57:35Obsid: 31287 SI: ACIS-S (10 ksec) Target: UGC 04040 1d 18:08 4:57 PM Wed 31-Dec
2026:001:00:44:15Maneuver to 179.00000 -23.00000 64.094 [2026:001:01:15:51] 1d 20:55 7:44 PM Wed 31-Dec
2026:001:01:15:51ER Obsid: 41837 (0 ksec) Purpose: Intermediate Attitud 1d 21:26 8:15 PM Wed 31-Dec
2026:001:01:16:12Maneuver to 225.95130 -41.79824 90.610 [2026:001:01:36:50] 1d 21:27 8:16 PM Wed 31-Dec
2026:001:01:41:20Obsid: 31587 SI: ACIS-I (12 ksec) Target: sn1006 NE 1d 21:52 8:41 PM Wed 31-Dec
2026:001:03:25:00Comm pass on DSS-54 (duration 1:00) 1d 23:3610:25 PM Wed 31-Dec
2026:001:05:09:40Maneuver to 103.00000 -66.00000 1.498 [2026:001:05:35:42] 2d 01:2012:09 AM Thu 01-Jan
2026:001:05:35:42ER Obsid: 41836 (0 ksec) Purpose: Intermediate Attitud 2d 01:4612:35 AM Thu 01-Jan
2026:001:05:36:03Maneuver to 40.63338 -21.52313 289.994 [2026:001:06:01:05] 2d 01:4712:36 AM Thu 01-Jan
2026:001:06:05:35Obsid: 30403 SI: ACIS-S (30 ksec) Target: ClG J0242-2132 2d 02:16 1:05 AM Thu 01-Jan
2026:001:13:10:00Comm pass on DSS-26 (duration 1:00) 2d 09:21 8:10 AM Thu 01-Jan
2026:001:14:25:35Maneuver to 97.85836 21.86650 299.007 [2026:001:14:52:24] 2d 10:36 9:25 AM Thu 01-Jan
2026:001:14:56:54Obsid: 32076 SI: ACIS-S (17 ksec) Target: B2.4 0628+21B 2d 11:07 9:56 AM Thu 01-Jan
2026:001:19:47:14Load DEC2925B:CL001:1907 [2026:003:13:45:02] 2d 15:58 2:47 PM Thu 01-Jan
2026:001:19:47:14Load DEC2925B:CL001:1907 [2026:003:13:45:02] 2d 15:58 2:47 PM Thu 01-Jan
2026:001:19:50:14Maneuver to 17.74522 -45.96118 292.483 [2026:001:20:23:30] 2d 16:01 2:50 PM Thu 01-Jan
2026:001:20:28:00Obsid: 29999 SI: ACIS-S (22 ksec) Target: 2MASX J01110461 2d 16:39 3:28 PM Thu 01-Jan
2026:002:02:34:40Maneuver to 166.10669 38.16291 73.004 [2026:002:03:22:20] 2d 22:45 9:34 PM Thu 01-Jan
2026:002:02:38:14Grating: LETG 2d 22:49 9:38 PM Thu 01-Jan
2026:002:02:45:00Comm pass on DSS-34 (duration 1:00) 2d 22:56 9:45 PM Thu 01-Jan
2026:002:03:26:50Obsid: 31732 SI: ACIS-S (27 ksec) Target: MKN421 2d 23:3710:26 PM Thu 01-Jan

CXO and GOES rates
CXOGOESLimit
HRC shield017250
HRC MCP458930
P4GM---0.03300
P41GM---0.018.47
CXO: from snapshot at 2025:364:01:27:51 (- 2:21)
GOES proxies: scaled 15 min average of GOES-16
Last avgs at HRC: - 0:19   P4GM: - 0:19   P41GM: - 0:21
ACE rates
Value2hr limitOrbital limitHours to
Orbital limit
Current flux14.95000012000> 30
2hr avg flux17.45000012000> 30
Orbital fluence9.3x105---2.0x109---
ACE data from 2025:364:03:35:00 (- 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 28/2100Z to 29/2100Z: The geomagnetic field has been at quiet to unsettled levels for the past 24 hours. Solar wind speed reached a peak of 496 km/s at 29/1634Z. Total IMF reached 8 nT at 29/1126Z. The maximum southward component of Bz reached -6 nT at 29/0822Z. Electrons greater than 2 MeV at geosynchronous orbit reached a peak level of 6,690 pfu. IIB. Geophysical Activity Forecast: The geomagnetic field is expected to be at quiet to unsettled levels on day one (30 Dec), quiet to active levels on day two (31 Dec) and unsettled to minor storm levels on day three (01 Jan). Protons have a slight chance of crossing threshold on days one, two, and three (30 Dec, 31 Dec, 01 Jan).
Solar ActivityAnalysis of Solar Active Regions and Activity from 28/2100Z to 29/2100Z: Solar activity has been at moderate levels for the past 24 hours. There are currently 9 numbered sunspot regions on the disk. IB. Solar Activity Forecast: Solar activity is likely to be moderate with a slight chance for an X-class flare on days one, two, and three (30 Dec, 31 Dec, 01 Jan).

Solar X-ray Activity

Solar Wind Data ( SOHO ACE )

Solar Flare Monitor