Page content updated: 2026:281:18:34:03 ( 2:34 PM Thu 08-Oct )

Key Snapshot and SOH Values (from current comm)
Obsid33438
Format2_EPS
RadMonENAB
CPE StatusNORM
RA234.986
Dec17.882
Roll296.718
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 2026:281:18:33:29 (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)
2026:281:08:17:53Maneuver to 83.87603 -69.29068 72.209 [2026:281:08:36:01]-10:16 4:17 AM Thu 08-Oct
2026:281:08:21:28Grating: LETG-10:12 4:21 AM Thu 08-Oct
2026:281:09:00:18Obsid: 33471 SI: HRC-I (12 ksec) Target: SNR 1987A - 9:33 5:00 AM Thu 08-Oct
2026:281:10:00:00Comm pass on DSS-65 (duration 1:00)- 8:34 6:00 AM Thu 08-Oct
2026:281:12:20:18Maneuver to 27.16397 5.98792 74.999 [2026:281:12:51:54]- 6:13 8:20 AM Thu 08-Oct
2026:281:12:21:07Grating: NONE- 6:12 8:21 AM Thu 08-Oct
2026:281:12:56:24Obsid: 31686 SI: ACIS-I (12 ksec) Target: SDSS J014837.63 - 5:37 8:56 AM Thu 08-Oct
2026:281:16:16:24Maneuver to 146.51844 -4.21026 85.761 [2026:281:16:54:05]- 2:1712:16 PM Thu 08-Oct
2026:281:16:58:35ER Obsid: 41080 (0 ksec) Purpose: Intermediate Attitud - 1:3512:58 PM Thu 08-Oct
2026:281:17:14:16Maneuver to 234.99007 17.87900 296.717 [2026:281:17:58:22]- 1:19 1:14 PM Thu 08-Oct
2026:281:18:02:52Obsid: 33438 SI: ACIS-I (8 ksec) Target: Abell 2108 - 0:31 2:02 PM Thu 08-Oct
2026:281:18:30:00Comm pass on DSS-53 (duration 1:00)- 0:04 2:30 PM Thu 08-Oct
2026:281:18:34:03--------------- NOW --------------- 0:00 2:34 PM Thu 08-Oct
2026:281:20:16:12Maneuver to 146.51844 -4.21026 85.676 [2026:281:21:00:17] 1:42 4:16 PM Thu 08-Oct
2026:281:21:04:47ER Obsid: 41079 (0 ksec) Purpose: Perigee Attitude 2:30 5:04 PM Thu 08-Oct
2026:281:21:20:28Maneuver to 27.16869 5.98878 89.063 [2026:281:21:58:03] 2:46 5:20 PM Thu 08-Oct
2026:281:22:02:33Obsid: 33473 SI: ACIS-I (19 ksec) Target: SDSS J014837.63 3:28 6:02 PM Thu 08-Oct
2026:282:02:05:00Comm pass on DSS-26 (duration 1:00) 7:3010:05 PM Thu 08-Oct
2026:282:02:05:00Load OCT0526A:CL282:0201 [2026:283:14:03:55] 7:3010:05 PM Thu 08-Oct
2026:282:02:05:00Load OCT0526A:CL282:0201 [2026:283:14:03:55] 7:3010:05 PM Thu 08-Oct
2026:282:03:19:13Maneuver to 126.42266 18.74358 76.456 [2026:282:03:51:56] 8:4511:19 PM Thu 08-Oct
2026:282:03:56:26Obsid: 31429 SI: ACIS-S (15 ksec) Target: SDSS J082540.44 9:2211:56 PM Thu 08-Oct
2026:282:08:06:26Maneuver to 17.83387 -38.09561 4.843 [2026:282:08:44:13] 13:32 4:06 AM Fri 09-Oct
2026:282:08:48:43Obsid: 30001 SI: ACIS-S (29 ksec) Target: NGC 424 14:14 4:48 AM Fri 09-Oct
2026:282:11:50:00Comm pass on DSS-53 (duration 1:00) 17:15 7:50 AM Fri 09-Oct
2026:282:17:02:20Maneuver to 14.95274 2.25416 2.612 [2026:282:17:22:20] 22:28 1:02 PM Fri 09-Oct
2026:282:17:05:55Grating: HETG 22:31 1:05 PM Fri 09-Oct
2026:282:17:07:58RADMON Disable 22:33 1:07 PM Fri 09-Oct
2026:282:17:26:50ER Obsid: 41078 (3 ksec) Purpose: Perigee Attitude 22:52 1:26 PM Fri 09-Oct
2026:282:20:00:00Comm pass on DSS-53 (duration 1:00) 1d 01:25 4:00 PM Fri 09-Oct
2026:282:20:16:17Maneuver to 188.64598 -55.07182 171.733 [2026:282:20:55:30] 1d 01:42 4:16 PM Fri 09-Oct
2026:282:21:00:00ER Obsid: 41077 (3 ksec) Purpose: Perigee Attitude 1d 02:25 5:00 PM Fri 09-Oct
2026:283:00:16:16Maneuver to 14.95274 2.25416 358.220 [2026:283:00:55:30] 1d 05:42 8:16 PM Fri 09-Oct
2026:283:01:00:00ER Obsid: 41076 (3 ksec) Purpose: Perigee Attitude 1d 06:25 9:00 PM Fri 09-Oct
2026:283:03:00:00Comm pass on DSS-54 (duration 1:00) 1d 08:2511:00 PM Fri 09-Oct
2026:283:03:16:16Maneuver to 188.64598 -55.07182 171.325 [2026:283:03:55:30] 1d 08:4211:16 PM Fri 09-Oct
2026:283:04:00:00ER Obsid: 41075 (3 ksec) Purpose: Perigee Attitude 1d 09:2512:00 AM Sat 10-Oct
2026:283:04:50:00Maneuver to 146.51844 -4.21026 85.016 [2026:283:05:19:55] 1d 10:1512:50 AM Sat 10-Oct
2026:283:05:24:25ER Obsid: 41074 (3 ksec) Purpose: Perigee Attitude 1d 10:50 1:24 AM Sat 10-Oct
2026:283:07:41:30Maneuver to 27.16915 5.98515 86.472 [2026:283:08:19:05] 1d 13:07 3:41 AM Sat 10-Oct
2026:283:07:42:04Grating: NONE 1d 13:08 3:42 AM Sat 10-Oct
2026:283:08:01:17RADMON Enable 1d 13:27 4:01 AM Sat 10-Oct
2026:283:08:23:35Obsid: 33474 SI: ACIS-I (18 ksec) Target: SDSS J014837.63 1d 13:49 4:23 AM Sat 10-Oct
2026:283:10:00:00Comm pass on DSS-53 (duration 1:00) 1d 15:25 6:00 AM Sat 10-Oct
2026:283:13:23:35Maneuver to 126.42328 18.74067 76.452 [2026:283:13:56:23] 1d 18:49 9:23 AM Sat 10-Oct
2026:283:14:00:53Obsid: 33469 SI: ACIS-S (15 ksec) Target: SDSS J082540.44 1d 19:2610:00 AM Sat 10-Oct
2026:283:15:57:07Load OCT0526A:CL283:1501 [2026:284:19:12:21] 1d 21:2311:57 AM Sat 10-Oct
2026:283:15:57:07Load OCT0526A:CL283:1501 [2026:284:19:12:21] 1d 21:2311:57 AM Sat 10-Oct
2026:283:18:10:53Maneuver to 27.16908 5.98419 85.482 [2026:283:18:43:42] 1d 23:36 2:10 PM Sat 10-Oct
2026:283:18:48:12Obsid: 33475 SI: ACIS-I (18 ksec) Target: SDSS J014837.63 2d 00:14 2:48 PM Sat 10-Oct
2026:283:21:30:00Comm pass on DSS-24 (duration 1:00) 2d 02:55 5:30 PM Sat 10-Oct
2026:283:23:48:12Maneuver to 126.42334 18.74034 76.435 [2026:284:00:21:02] 2d 05:14 7:48 PM Sat 10-Oct
2026:284:00:25:32Obsid: 33470 SI: ACIS-S (10 ksec) Target: SDSS J082540.44 2d 05:51 8:25 PM Sat 10-Oct
2026:284:02:00:00Comm pass on DSS-26 (duration 1:00) 2d 07:2510:00 PM Sat 10-Oct
2026:284:03:12:12Maneuver to 122.83850 0.58457 78.000 [2026:284:03:26:04] 2d 08:3811:12 PM Sat 10-Oct
2026:284:03:36:05Obsid: 33242 SI: ACIS-S (10 ksec) Target: ACT-CL J0811.3+ 2d 09:0211:36 PM Sat 10-Oct
2026:284:06:22:45Maneuver to 27.16847 5.98444 84.335 [2026:284:06:54:59] 2d 11:48 2:22 AM Sun 11-Oct
2026:284:06:59:29Obsid: 33476 SI: ACIS-I (11 ksec) Target: SDSS J014837.63 2d 12:25 2:59 AM Sun 11-Oct
2026:284:10:02:49Maneuver to 89.29166 48.17850 98.125 [2026:284:10:31:38] 2d 15:28 6:02 AM Sun 11-Oct
2026:284:10:31:38ER Obsid: 41073 (0 ksec) Purpose: Intermediate Attitud 2d 15:57 6:31 AM Sun 11-Oct
2026:284:10:31:59Maneuver to 180.75543 44.51351 14.024 [2026:284:10:56:22] 2d 15:57 6:31 AM Sun 11-Oct
2026:284:10:32:33Grating: HETG 2d 15:58 6:32 AM Sun 11-Oct
2026:284:11:00:52Obsid: 30224 SI: ACIS-S (16 ksec) Target: NGC 4051 2d 16:26 7:00 AM Sun 11-Oct
2026:284:12:00:00Comm pass on DSS-56 (duration 1:00) 2d 17:25 8:00 AM Sun 11-Oct
2026:284:15:27:32Maneuver to 89.29166 48.17850 98.226 [2026:284:15:51:55] 2d 20:5311:27 AM Sun 11-Oct
2026:284:15:51:55ER Obsid: 41072 (0 ksec) Purpose: Perigee Attitude 2d 21:1711:51 AM Sun 11-Oct
2026:284:15:52:16Maneuver to 27.16811 5.98433 83.418 [2026:284:16:21:11] 2d 21:1811:52 AM Sun 11-Oct
2026:284:15:52:50Grating: NONE 2d 21:1811:52 AM Sun 11-Oct
2026:284:16:25:41Obsid: 33477 SI: ACIS-I (10 ksec) Target: SDSS J014837.63 2d 21:5112:25 PM Sun 11-Oct

CXO and GOES rates
CXOGOESLimit
HRC shield017250
HRC MCP611930
P4GM---0.03300
P41GM---0.018.47
CXO: from snapshot at 2026:281:18:33:29 ( 0:00)
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 flux21.75000012000> 30
2hr avg flux17.55000012000> 30
Orbital fluence3.6x106---2.0x109---
ACE data from 2026:281:18:20:00 (- 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 06/2100Z to 07/2100Z: The geomagnetic field has been at quiet to unsettled levels for the past 24 hours. Solar wind speed reached a peak of 429 km/s at 06/2110Z. Total field was under 5 nT and the Bz component reached -4 nT at 07/1701 UTC. Electrons greater than 2 MeV at geosynchronous orbit reached a peak level of 11911 pfu. IIB. Geophysical Activity Forecast: The geomagnetic field is expected to be at quiet levels on day one (08 Oct), quiet to major storm levels on day two (09 Oct) and quiet to active levels on day three (10 Oct). Protons have a slight chance of crossing threshold on days one, two, and three (08 Oct, 09 Oct, 10 Oct).
Solar ActivityAnalysis of Solar Active Regions and Activity from 06/2100Z to 07/2100Z: Solar activity has been at low levels for the past 24 hours. There are currently 5 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 (08 Oct, 09 Oct, 10 Oct).

Solar X-ray Activity

Solar Wind Data ( SOHO ACE )

Solar Flare Monitor