Page content updated: 2026:277:22:14:01 ( 6:14 PM Sun 04-Oct )

Key Snapshot and SOH Values (Δt = - 0:26)
Obsid41090
Format2_NORM
RadMonDISA
CPE StatusNORM
RA16.004
Dec4.603
Roll91.087
Pitch174.09
Sim Z-99616
Sim Focus-535
HETG angle5.59
LETG angle75.71
SCS 107INAC
SCS 128ACT
SCS 129INAC
SCS 130ACT
RadMonDISA
SCS 131ACT
SCS 132INAC
SCS 133ACT
Snapshot from 2026:277:21:47:07 (Δt = - 0:26)

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)
2026:277:10:19:04Maneuver to 183.76401 47.26724 7.861 [2026:277:10:56:05]-11:54 6:19 AM Sun 04-Oct
2026:277:10:22:39Grating: HETG-11:51 6:22 AM Sun 04-Oct
2026:277:10:25:05RADMON Disable-11:48 6:25 AM Sun 04-Oct
2026:277:11:00:35ER Obsid: 41094 (3 ksec) Purpose: Perigee Attitude -11:13 7:00 AM Sun 04-Oct
2026:277:13:10:00Load OCT0526A:CL277:1301 [2026:278:19:10:02]- 9:04 9:10 AM Sun 04-Oct
2026:277:13:10:00Load OCT0526A:CL277:1301 [2026:278:19:10:02]- 9:04 9:10 AM Sun 04-Oct
2026:277:13:13:00Maneuver to 183.76401 47.26724 7.977 [2026:277:13:17:00]- 9:01 9:13 AM Sun 04-Oct
2026:277:13:21:30ER Obsid: 41093 (3 ksec) Purpose: Perigee Attitude - 8:52 9:21 AM Sun 04-Oct
2026:277:14:11:30Maneuver to 11.21480 7.53714 160.970 [2026:277:14:50:18]- 8:0210:11 AM Sun 04-Oct
2026:277:14:54:48ER Obsid: 41092 (3 ksec) Purpose: Perigee Attitude - 7:1910:54 AM Sun 04-Oct
2026:277:17:22:37Maneuver to 104.04318 22.49235 84.478 [2026:277:17:55:30]- 4:51 1:22 PM Sun 04-Oct
2026:277:18:00:00ER Obsid: 41091 (3 ksec) Purpose: Perigee Attitude - 4:14 2:00 PM Sun 04-Oct
2026:277:20:44:54Maneuver to 16.00000 4.60000 91.087 [2026:277:21:15:30]- 1:29 4:44 PM Sun 04-Oct
2026:277:20:50:00Comm pass on DSS-24 (duration 1:00)- 1:24 4:50 PM Sun 04-Oct
2026:277:21:20:00ER Obsid: 41090 (3 ksec) Purpose: Perigee Attitude - 0:54 5:20 PM Sun 04-Oct
2026:277:22:14:01--------------- NOW --------------- 0:00 6:14 PM Sun 04-Oct
2026:278:00:06:42Maneuver to 143.53234 -18.69352 99.018 [2026:278:00:46:06] 1:52 8:06 PM Sun 04-Oct
2026:278:00:07:16Grating: NONE 1:53 8:07 PM Sun 04-Oct
2026:278:00:28:18RADMON Enable 2:14 8:28 PM Sun 04-Oct
2026:278:00:50:36Obsid: 30480 SI: ACIS-I (20 ksec) Target: Hoinga 2:36 8:50 PM Sun 04-Oct
2026:278:02:00:00Comm pass on DSS-26 (duration 1:00) 3:4510:00 PM Sun 04-Oct
2026:278:06:23:56Maneuver to 83.87806 -69.29522 72.511 [2026:278:06:49:25] 8:09 2:23 AM Mon 05-Oct
2026:278:06:27:31Grating: LETG 8:13 2:27 AM Mon 05-Oct
2026:278:07:06:21Obsid: 31122 SI: HRC-I (14 ksec) Target: SNR 1987A 8:52 3:06 AM Mon 05-Oct
2026:278:10:00:00Comm pass on DSS-54 (duration 1:00) 11:45 6:00 AM Mon 05-Oct
2026:278:11:08:01Maneuver to 32.20864 0.97828 77.000 [2026:278:11:38:20] 12:54 7:08 AM Mon 05-Oct
2026:278:11:08:50Grating: NONE 12:54 7:08 AM Mon 05-Oct
2026:278:11:42:50Obsid: 31653 SI: ACIS-I (12 ksec) Target: BOSS0210E 13:28 7:42 AM Mon 05-Oct
2026:278:15:11:10Maneuver to 118.50000 -30.90000 94.908 [2026:278:15:41:41] 16:5711:11 AM Mon 05-Oct
2026:278:15:46:11ER Obsid: 41089 (0 ksec) Purpose: Intermediate Attitud 17:3211:46 AM Mon 05-Oct
2026:278:16:01:52Maneuver to 280.32315 -4.94062 271.999 [2026:278:16:44:54] 17:4712:01 PM Mon 05-Oct
2026:278:16:49:24Obsid: 31595 SI: ACIS-S (30 ksec) Target: Kes 73 18:3512:49 PM Mon 05-Oct
2026:278:17:55:00Comm pass on DSS-54 (duration 0:45) 19:40 1:55 PM Mon 05-Oct
2026:279:01:06:24Load OCT0526A:CL279:0101 [2026:280:12:18:54] 1d 02:52 9:06 PM Mon 05-Oct
2026:279:01:06:24Load OCT0526A:CL279:0101 [2026:280:12:18:54] 1d 02:52 9:06 PM Mon 05-Oct
2026:279:01:09:24Maneuver to 2.68973 -11.47765 331.686 [2026:279:01:40:43] 1d 02:55 9:09 PM Mon 05-Oct
2026:279:01:45:13ER Obsid: 41088 (0 ksec) Purpose: Intermediate Attitud 1d 03:31 9:45 PM Mon 05-Oct
2026:279:02:00:54Maneuver to 83.87602 -69.28981 72.509 [2026:279:02:30:21] 1d 03:4610:00 PM Mon 05-Oct
2026:279:02:01:28Grating: LETG 1d 03:4710:01 PM Mon 05-Oct
2026:279:02:25:00Comm pass on DSS-26 (duration 1:00) 1d 04:1010:25 PM Mon 05-Oct
2026:279:02:40:19Obsid: 31505 SI: HRC-I (14 ksec) Target: SNR 1987A 1d 04:2610:40 PM Mon 05-Oct
2026:279:06:43:39Maneuver to 32.20514 0.98278 69.000 [2026:279:07:13:19] 1d 08:29 2:43 AM Tue 06-Oct
2026:279:06:44:27Grating: NONE 1d 08:30 2:44 AM Tue 06-Oct
2026:279:07:17:49Obsid: 33472 SI: ACIS-I (16 ksec) Target: BOSS0210E 1d 09:03 3:17 AM Tue 06-Oct
2026:279:10:55:00Comm pass on DSS-53 (duration 1:00) 1d 12:40 6:55 AM Tue 06-Oct
2026:279:11:44:29Maneuver to 81.16042 -8.72402 81.372 [2026:279:12:06:41] 1d 13:30 7:44 AM Tue 06-Oct
2026:279:12:11:11Obsid: 33467 SI: ACIS-S (20 ksec) Target: 2RXS J052437.3- 1d 13:57 8:11 AM Tue 06-Oct
2026:279:17:44:31Maneuver to 83.87486 -69.28744 72.208 [2026:279:18:09:11] 1d 19:30 1:44 PM Tue 06-Oct
2026:279:17:48:06Grating: LETG 1d 19:34 1:48 PM Tue 06-Oct
2026:279:18:26:56Obsid: 31506 SI: HRC-I (13 ksec) Target: SNR 1987A 1d 20:12 2:26 PM Tue 06-Oct
2026:279:21:25:00Comm pass on DSS-65 (duration 1:00) 1d 23:10 5:25 PM Tue 06-Oct
2026:279:22:11:56Maneuver to 27.16467 5.99163 79.999 [2026:279:22:43:57] 1d 23:57 6:11 PM Tue 06-Oct
2026:279:22:12:45Grating: NONE 1d 23:58 6:12 PM Tue 06-Oct
2026:279:22:48:27Obsid: 31673 SI: ACIS-I (10 ksec) Target: SDSS J014837.63 2d 00:34 6:48 PM Tue 06-Oct
2026:280:01:38:44Maneuver to 15.85239 4.62919 78.784 [2026:280:01:49:55] 2d 03:24 9:38 PM Tue 06-Oct
2026:280:01:42:18Grating: HETG 2d 03:28 9:42 PM Tue 06-Oct
2026:280:01:44:44RADMON Disable 2d 03:30 9:44 PM Tue 06-Oct
2026:280:01:54:25ER Obsid: 41087 (3 ksec) Purpose: Perigee Attitude 2d 03:40 9:54 PM Tue 06-Oct
2026:280:03:00:00Comm pass on DSS-26 (duration 1:00) 2d 04:4511:00 PM Tue 06-Oct
2026:280:04:16:18Maneuver to 142.92618 -16.18639 96.809 [2026:280:04:55:30] 2d 06:0212:16 AM Wed 07-Oct
2026:280:05:00:00ER Obsid: 41086 (3 ksec) Purpose: Perigee Attitude 2d 06:45 1:00 AM Wed 07-Oct
2026:280:07:15:58Maneuver to 15.30000 2.30000 40.992 [2026:280:07:55:30] 2d 09:01 3:15 AM Wed 07-Oct
2026:280:08:00:00ER Obsid: 41085 (0 ksec) Purpose: Perigee Attitude 2d 09:45 4:00 AM Wed 07-Oct
2026:280:08:25:46Maneuver to 13.90000 -74.10000 1.278 [2026:280:08:55:30] 2d 10:11 4:25 AM Wed 07-Oct
2026:280:09:00:00ER Obsid: 41084 (3 ksec) Purpose: Perigee Attitude 2d 10:45 5:00 AM Wed 07-Oct
2026:280:11:24:32Maneuver to 142.87690 -13.35894 94.163 [2026:280:11:55:30] 2d 13:10 7:24 AM Wed 07-Oct
2026:280:12:00:00ER Obsid: 41083 (3 ksec) Purpose: Perigee Attitude 2d 13:45 8:00 AM Wed 07-Oct
2026:280:12:10:00Comm pass on DSS-26 (duration 1:00) 2d 13:55 8:10 AM Wed 07-Oct
2026:280:12:47:00Load OCT0526A:CL280:1201 [2026:281:22:13:54] 2d 14:32 8:47 AM Wed 07-Oct
2026:280:12:47:00Load OCT0526A:CL280:1201 [2026:281:22:13:54] 2d 14:32 8:47 AM Wed 07-Oct
2026:280:12:50:00Maneuver to 17.85936 7.37768 110.243 [2026:280:13:29:18] 2d 14:35 8:50 AM Wed 07-Oct
2026:280:13:33:48ER Obsid: 41082 (0 ksec) Purpose: Perigee Attitude 2d 15:19 9:33 AM Wed 07-Oct
2026:280:13:49:29Maneuver to 16.00000 4.60000 73.567 [2026:280:14:08:39] 2d 15:35 9:49 AM Wed 07-Oct
2026:280:14:13:09ER Obsid: 41081 (0 ksec) Purpose: Perigee Attitude 2d 15:5910:13 AM Wed 07-Oct
2026:280:15:32:37Maneuver to 143.53286 -18.69374 94.519 [2026:280:16:11:51] 2d 17:1811:32 AM Wed 07-Oct
2026:280:15:33:11Grating: NONE 2d 17:1911:33 AM Wed 07-Oct
2026:280:15:54:03RADMON Enable 2d 17:4011:54 AM Wed 07-Oct
2026:280:16:16:21Obsid: 33468 SI: ACIS-I (18 ksec) Target: Hoinga 2d 18:0212:16 PM Wed 07-Oct
2026:280:18:00:00Comm pass on DSS-54 (duration 1:00) 2d 19:45 2:00 PM Wed 07-Oct
2026:280:21:16:21Maneuver to 27.16924 5.98892 90.627 [2026:280:21:53:29] 2d 23:02 5:16 PM Wed 07-Oct
2026:280:21:57:59Obsid: 31675 SI: ACIS-I (10 ksec) Target: SDSS J014837.63 2d 23:43 5:57 PM Wed 07-Oct

CXO and GOES rates
CXOGOESLimit
HRC shield017250
HRC MCP484430
P4GM---0.03300
P41GM---0.018.47
CXO: from snapshot at 2026:277:21:47:07 (- 0:26)
RadMon: DISABLED
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 flux5065000012000> 30
2hr avg flux4945000012000> 30
Orbital fluence0---2.0x109---
ACE data from 2026:277:21:50:00 (- 0:24)
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 03/2100Z to 04/2100Z: The geomagnetic field has been at quiet to major storm levels for the past 24 hours. Solar wind speed reached a peak of 644 km/s at 04/1807Z. Total IMF reached 22 nT at 04/0648Z. The maximum southward component of Bz reached -20 nT at 04/0611Z. Electrons greater than 2 MeV at geosynchronous orbit reached a peak level of 330 pfu. IIB. Geophysical Activity Forecast: The geomagnetic field is expected to be at quiet to minor storm levels on day one (05 Oct), quiet to active levels on day two (06 Oct) and quiet to unsettled levels on day three (07 Oct).
Solar ActivityAnalysis of Solar Active Regions and Activity from 03/2100Z to 04/2100Z: Solar activity has been at very low levels for the past 24 hours. There are currently 4 numbered sunspot regions on the disk. IB. Solar Activity Forecast: Solar activity is expected to be very low with a chance for a C-class flares on days one, two, and three (05 Oct, 06 Oct, 07 Oct).

Solar X-ray Activity

Solar Wind Data ( SOHO ACE )

Solar Flare Monitor