Page content updated: 2026:282:00:20:01 ( 8:20 PM Thu 08-Oct )

Key Snapshot and SOH Values (Δt = - 4:53)
Obsid33438
Format2_NORM
RadMonENAB
CPE StatusNORM
RA234.990
Dec17.881
Roll296.717
Pitch46.76
Sim Z92903
Sim Focus-535
HETG angle77.59
LETG angle75.71
SCS 107INAC
SCS 128ACT
SCS 129ACT
SCS 130ACT
RadMonENAB
SCS 131ACT
SCS 132ACT
SCS 133ACT
Snapshot from 2026:281:19:26:18 (Δt = - 4:53)

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)
2026:281:12:20:18Maneuver to 27.16397 5.98792 74.999 [2026:281:12:51:54]-11:59 8:20 AM Thu 08-Oct
2026:281:12:21:07Grating: NONE-11:58 8:21 AM Thu 08-Oct
2026:281:12:56:24Obsid: 31686 SI: ACIS-I (12 ksec) Target: SDSS J014837.63 -11:23 8:56 AM Thu 08-Oct
2026:281:16:16:24Maneuver to 146.51844 -4.21026 85.761 [2026:281:16:54:05]- 8:0312:16 PM Thu 08-Oct
2026:281:16:58:35ER Obsid: 41080 (0 ksec) Purpose: Intermediate Attitud - 7:2112:58 PM Thu 08-Oct
2026:281:17:14:16Maneuver to 234.99007 17.87900 296.717 [2026:281:17:58:22]- 7:05 1:14 PM Thu 08-Oct
2026:281:18:02:52Obsid: 33438 SI: ACIS-I (8 ksec) Target: Abell 2108 - 6:17 2:02 PM Thu 08-Oct
2026:281:18:30:00Comm pass on DSS-53 (duration 1:00)- 5:50 2:30 PM Thu 08-Oct
2026:281:20:16:12Maneuver to 146.51844 -4.21026 85.676 [2026:281:21:00:17]- 4:03 4:16 PM Thu 08-Oct
2026:281:21:04:47ER Obsid: 41079 (0 ksec) Purpose: Perigee Attitude - 3:15 5:04 PM Thu 08-Oct
2026:281:21:20:28Maneuver to 27.16869 5.98878 89.063 [2026:281:21:58:03]- 2:59 5:20 PM Thu 08-Oct
2026:281:22:02:33Obsid: 33473 SI: ACIS-I (19 ksec) Target: SDSS J014837.63 - 2:17 6:02 PM Thu 08-Oct
2026:282:00:20:01--------------- NOW --------------- 0:00 8:20 PM Thu 08-Oct
2026:282:02:05:00Comm pass on DSS-26 (duration 1:00) 1:4410:05 PM Thu 08-Oct
2026:282:02:05:00Load OCT0526A:CL282:0201 [2026:283:14:03:55] 1:4410:05 PM Thu 08-Oct
2026:282:02:05:00Load OCT0526A:CL282:0201 [2026:283:14:03:55] 1:4410:05 PM Thu 08-Oct
2026:282:03:19:13Maneuver to 126.42266 18.74358 76.456 [2026:282:03:51:56] 2:5911:19 PM Thu 08-Oct
2026:282:03:56:26Obsid: 31429 SI: ACIS-S (15 ksec) Target: SDSS J082540.44 3:3611:56 PM Thu 08-Oct
2026:282:08:06:26Maneuver to 17.83387 -38.09561 4.843 [2026:282:08:44:13] 7:46 4:06 AM Fri 09-Oct
2026:282:08:48:43Obsid: 30001 SI: ACIS-S (29 ksec) Target: NGC 424 8:28 4:48 AM Fri 09-Oct
2026:282:11:50:00Comm pass on DSS-53 (duration 1:00) 11:29 7:50 AM Fri 09-Oct
2026:282:17:02:20Maneuver to 14.95274 2.25416 2.612 [2026:282:17:22:20] 16:42 1:02 PM Fri 09-Oct
2026:282:17:05:55Grating: HETG 16:45 1:05 PM Fri 09-Oct
2026:282:17:07:58RADMON Disable 16:47 1:07 PM Fri 09-Oct
2026:282:17:26:50ER Obsid: 41078 (3 ksec) Purpose: Perigee Attitude 17:06 1:26 PM Fri 09-Oct
2026:282:20:00:00Comm pass on DSS-53 (duration 1:00) 19:39 4:00 PM Fri 09-Oct
2026:282:20:16:17Maneuver to 188.64598 -55.07182 171.733 [2026:282:20:55:30] 19:56 4:16 PM Fri 09-Oct
2026:282:21:00:00ER Obsid: 41077 (3 ksec) Purpose: Perigee Attitude 20:39 5:00 PM Fri 09-Oct
2026:283:00:16:16Maneuver to 14.95274 2.25416 358.220 [2026:283:00:55:30] 23:56 8:16 PM Fri 09-Oct
2026:283:01:00:00ER Obsid: 41076 (3 ksec) Purpose: Perigee Attitude 1d 00:39 9:00 PM Fri 09-Oct
2026:283:03:00:00Comm pass on DSS-54 (duration 1:00) 1d 02:3911:00 PM Fri 09-Oct
2026:283:03:16:16Maneuver to 188.64598 -55.07182 171.325 [2026:283:03:55:30] 1d 02:5611:16 PM Fri 09-Oct
2026:283:04:00:00ER Obsid: 41075 (3 ksec) Purpose: Perigee Attitude 1d 03:3912:00 AM Sat 10-Oct
2026:283:04:50:00Maneuver to 146.51844 -4.21026 85.016 [2026:283:05:19:55] 1d 04:2912:50 AM Sat 10-Oct
2026:283:05:24:25ER Obsid: 41074 (3 ksec) Purpose: Perigee Attitude 1d 05:04 1:24 AM Sat 10-Oct
2026:283:07:41:30Maneuver to 27.16915 5.98515 86.472 [2026:283:08:19:05] 1d 07:21 3:41 AM Sat 10-Oct
2026:283:07:42:04Grating: NONE 1d 07:22 3:42 AM Sat 10-Oct
2026:283:08:01:17RADMON Enable 1d 07:41 4:01 AM Sat 10-Oct
2026:283:08:23:35Obsid: 33474 SI: ACIS-I (18 ksec) Target: SDSS J014837.63 1d 08:03 4:23 AM Sat 10-Oct
2026:283:10:00:00Comm pass on DSS-53 (duration 1:00) 1d 09:39 6:00 AM Sat 10-Oct
2026:283:13:23:35Maneuver to 126.42328 18.74067 76.452 [2026:283:13:56:23] 1d 13:03 9:23 AM Sat 10-Oct
2026:283:14:00:53Obsid: 33469 SI: ACIS-S (15 ksec) Target: SDSS J082540.44 1d 13:4010:00 AM Sat 10-Oct
2026:283:15:57:07Load OCT0526A:CL283:1501 [2026:284:19:12:21] 1d 15:3711:57 AM Sat 10-Oct
2026:283:15:57:07Load OCT0526A:CL283:1501 [2026:284:19:12:21] 1d 15:3711:57 AM Sat 10-Oct
2026:283:18:10:53Maneuver to 27.16908 5.98419 85.482 [2026:283:18:43:42] 1d 17:50 2:10 PM Sat 10-Oct
2026:283:18:48:12Obsid: 33475 SI: ACIS-I (18 ksec) Target: SDSS J014837.63 1d 18:28 2:48 PM Sat 10-Oct
2026:283:21:30:00Comm pass on DSS-24 (duration 1:00) 1d 21:09 5:30 PM Sat 10-Oct
2026:283:23:48:12Maneuver to 126.42334 18.74034 76.435 [2026:284:00:21:02] 1d 23:28 7:48 PM Sat 10-Oct
2026:284:00:25:32Obsid: 33470 SI: ACIS-S (10 ksec) Target: SDSS J082540.44 2d 00:05 8:25 PM Sat 10-Oct
2026:284:02:00:00Comm pass on DSS-26 (duration 1:00) 2d 01:3910:00 PM Sat 10-Oct
2026:284:03:12:12Maneuver to 122.83850 0.58457 78.000 [2026:284:03:26:04] 2d 02:5211:12 PM Sat 10-Oct
2026:284:03:36:05Obsid: 33242 SI: ACIS-S (10 ksec) Target: ACT-CL J0811.3+ 2d 03:1611:36 PM Sat 10-Oct
2026:284:06:22:45Maneuver to 27.16847 5.98444 84.335 [2026:284:06:54:59] 2d 06:02 2:22 AM Sun 11-Oct
2026:284:06:59:29Obsid: 33476 SI: ACIS-I (11 ksec) Target: SDSS J014837.63 2d 06:39 2:59 AM Sun 11-Oct
2026:284:10:02:49Maneuver to 89.29166 48.17850 98.125 [2026:284:10:31:38] 2d 09:42 6:02 AM Sun 11-Oct
2026:284:10:31:38ER Obsid: 41073 (0 ksec) Purpose: Intermediate Attitud 2d 10:11 6:31 AM Sun 11-Oct
2026:284:10:31:59Maneuver to 180.75543 44.51351 14.024 [2026:284:10:56:22] 2d 10:11 6:31 AM Sun 11-Oct
2026:284:10:32:33Grating: HETG 2d 10:12 6:32 AM Sun 11-Oct
2026:284:11:00:52Obsid: 30224 SI: ACIS-S (16 ksec) Target: NGC 4051 2d 10:40 7:00 AM Sun 11-Oct
2026:284:12:00:00Comm pass on DSS-56 (duration 1:00) 2d 11:39 8:00 AM Sun 11-Oct
2026:284:15:27:32Maneuver to 89.29166 48.17850 98.226 [2026:284:15:51:55] 2d 15:0711:27 AM Sun 11-Oct
2026:284:15:51:55ER Obsid: 41072 (0 ksec) Purpose: Perigee Attitude 2d 15:3111:51 AM Sun 11-Oct
2026:284:15:52:16Maneuver to 27.16811 5.98433 83.418 [2026:284:16:21:11] 2d 15:3211:52 AM Sun 11-Oct
2026:284:15:52:50Grating: NONE 2d 15:3211:52 AM Sun 11-Oct
2026:284:16:25:41Obsid: 33477 SI: ACIS-I (10 ksec) Target: SDSS J014837.63 2d 16:0512:25 PM Sun 11-Oct
2026:284:21:50:00Comm pass on DSS-54 (duration 1:00) 2d 21:29 5:50 PM Sun 11-Oct

CXO and GOES rates
CXOGOESLimit
HRC shield018250
HRC MCP484430
P4GM---0.11300
P41GM---0.028.47
CXO: from snapshot at 2026:281:19:26:18 (- 4:53)
GOES proxies: scaled 15 min average of GOES-16
Last avgs at HRC: - 0:20   P4GM: - 0:20   P41GM: - 0:20
ACE rates
Value2hr limitOrbital limitHours to
Orbital limit
Current flux20.35000012000> 30
2hr avg flux18.15000012000> 30
Orbital fluence4.0x106---2.0x109---
ACE data from 2026:282:00:05:00 (- 0:15)
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 07/2100Z to 08/2100Z: The geomagnetic field has been at quiet levels for the past 24 hours. Solar wind speed reached a peak of 396 km/s at 08/0120Z. Total IMF reached 6 nT at 08/1307Z. The maximum southward component of Bz reached -5 nT at 08/1214Z. Electrons greater than 2 MeV at geosynchronous orbit reached a peak level of 11335 pfu. IIB. Geophysical Activity Forecast: The geomagnetic field is expected to be at quiet to major storm levels on day one (09 Oct), quiet to active levels on day two (10 Oct) and quiet to minor storm levels on day three (11 Oct). Protons have a slight chance of crossing threshold on days one, two, and three (09 Oct, 10 Oct, 11 Oct).
Solar ActivityAnalysis of Solar Active Regions and Activity from 07/2100Z to 08/2100Z: Solar activity has been at high 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 moderate with a slight chance for an X-class flare on days one, two, and three (09 Oct, 10 Oct, 11 Oct).

Solar X-ray Activity

Solar Wind Data ( SOHO ACE )

Solar Flare Monitor