Page content updated: 2026:275:23:54:00 ( 7:54 PM Fri 02-Oct )

Key Snapshot and SOH Values (Δt = - 6:22)
Obsid30432
Format2_NORM
RadMonENAB
CPE StatusNORM
RA258.176
Dec64.062
Roll280.031
Pitch84.23
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 2026:275:17:31:26 (Δt = - 6:22)

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)
2026:275:16:45:00Comm pass on DSS-53 (duration 0:50)- 7:0912:45 PM Fri 02-Oct
2026:275:17:30:55Maneuver to 352.19105 5.26678 265.065 [2026:275:18:04:08]- 6:23 1:30 PM Fri 02-Oct
2026:275:18:13:20Obsid: 30448 SI: HRC-I (11 ksec) Target: G29-38 - 5:40 2:13 PM Fri 02-Oct
2026:275:21:16:40Maneuver to 306.15000 -47.30000 289.000 [2026:275:21:44:58]- 2:37 5:16 PM Fri 02-Oct
2026:275:21:44:58ER Obsid: 41096 (0 ksec) Purpose: Intermediate Attitud - 2:09 5:44 PM Fri 02-Oct
2026:275:21:45:19Maneuver to 165.46817 -61.02432 145.027 [2026:275:22:11:25]- 2:08 5:45 PM Fri 02-Oct
2026:275:22:15:55Obsid: 33462 SI: ACIS-I (10 ksec) Target: PSR J1101-6101 - 1:38 6:15 PM Fri 02-Oct
2026:275:23:38:07Load SEP2826A:CL275:2301 [2026:277:13:12:57]- 0:15 7:38 PM Fri 02-Oct
2026:275:23:38:07Load SEP2826A:CL275:2301 [2026:277:13:12:57]- 0:15 7:38 PM Fri 02-Oct
2026:275:23:54:00--------------- NOW --------------- 0:00 7:54 PM Fri 02-Oct
2026:276:01:02:35Maneuver to 27.16547 5.98866 79.999 [2026:276:01:40:46] 1:08 9:02 PM Fri 02-Oct
2026:276:01:45:16Obsid: 31682 SI: ACIS-I (10 ksec) Target: SDSS J014837.63 1:51 9:45 PM Fri 02-Oct
2026:276:02:45:00Comm pass on DSS-26 (duration 1:00) 2:5110:45 PM Fri 02-Oct
2026:276:04:31:56Maneuver to 153.94937 -57.27735 131.035 [2026:276:05:09:17] 4:3712:31 AM Sat 03-Oct
2026:276:05:13:47Obsid: 33457 SI: ACIS-I (10 ksec) Target: PSR J1015-5719 5:19 1:13 AM Sat 03-Oct
2026:276:08:00:27Maneuver to 27.16567 5.98794 79.999 [2026:276:08:37:47] 8:06 4:00 AM Sat 03-Oct
2026:276:08:42:17Obsid: 33463 SI: ACIS-I (10 ksec) Target: SDSS J014837.63 8:48 4:42 AM Sat 03-Oct
2026:276:11:28:57Maneuver to 153.95063 -57.27765 131.036 [2026:276:12:06:18] 11:34 7:28 AM Sat 03-Oct
2026:276:12:10:48Obsid: 33458 SI: ACIS-I (10 ksec) Target: PSR J1015-5719 12:16 8:10 AM Sat 03-Oct
2026:276:12:55:00Comm pass on DSS-65 (duration 1:00) 13:01 8:55 AM Sat 03-Oct
2026:276:14:57:28Maneuver to 176.09797 55.48961 8.000 [2026:276:15:41:52] 15:0310:57 AM Sat 03-Oct
2026:276:15:46:22ER Obsid: 41095 (0 ksec) Purpose: Intermediate Attitud 15:5211:46 AM Sat 03-Oct
2026:276:16:02:03Maneuver to 4.64724 16.45916 200.504 [2026:276:16:37:28] 16:0812:02 PM Sat 03-Oct
2026:276:16:41:58Obsid: 30413 SI: ACIS-I (10 ksec) Target: MACS J0018.5+16 16:4712:41 PM Sat 03-Oct
2026:276:19:20:00Comm pass on DSS-54 (duration 1:00) 19:26 3:20 PM Sat 03-Oct
2026:276:19:28:38Maneuver to 165.02221 45.21100 24.019 [2026:276:20:06:00] 19:34 3:28 PM Sat 03-Oct
2026:276:20:10:30Obsid: 33451 SI: ACIS-S (11 ksec) Target: SDSSJ110011.85+ 20:16 4:10 PM Sat 03-Oct
2026:276:23:20:30Maneuver to 4.64762 16.46012 201.801 [2026:276:23:57:56] 23:26 7:20 PM Sat 03-Oct
2026:277:00:02:26Obsid: 33459 SI: ACIS-I (10 ksec) Target: MACS J0018.5+16 1d 00:08 8:02 PM Sat 03-Oct
2026:277:01:15:00Comm pass on DSS-23 (duration 1:00) 1d 01:21 9:15 PM Sat 03-Oct
2026:277:02:49:06Maneuver to 165.02142 45.20998 24.520 [2026:277:03:26:30] 1d 02:5510:49 PM Sat 03-Oct
2026:277:03:31:00Obsid: 33466 SI: ACIS-S (11 ksec) Target: SDSSJ110011.85+ 1d 03:3711:31 PM Sat 03-Oct
2026:277:06:50:10Maneuver to 4.64794 16.46110 203.147 [2026:277:07:27:38] 1d 06:56 2:50 AM Sun 04-Oct
2026:277:07:32:08Obsid: 33460 SI: ACIS-I (10 ksec) Target: MACS J0018.5+16 1d 07:38 3:32 AM Sun 04-Oct
2026:277:10:00:00Comm pass on DSS-36 (duration 1:00) 1d 10:06 6:00 AM Sun 04-Oct
2026:277:10:19:04Maneuver to 183.76401 47.26724 7.861 [2026:277:10:56:05] 1d 10:25 6:19 AM Sun 04-Oct
2026:277:10:22:39Grating: HETG 1d 10:28 6:22 AM Sun 04-Oct
2026:277:10:25:05RADMON Disable 1d 10:31 6:25 AM Sun 04-Oct
2026:277:11:00:35ER Obsid: 41094 (3 ksec) Purpose: Perigee Attitude 1d 11:06 7:00 AM Sun 04-Oct
2026:277:13:10:00Load OCT0526A:CL277:1301 [2026:278:19:10:02] 1d 13:16 9:10 AM Sun 04-Oct
2026:277:13:10:00Load OCT0526A:CL277:1301 [2026:278:19:10:02] 1d 13:16 9:10 AM Sun 04-Oct
2026:277:13:13:00Maneuver to 183.76401 47.26724 7.977 [2026:277:13:17:00] 1d 13:19 9:13 AM Sun 04-Oct
2026:277:13:21:30ER Obsid: 41093 (3 ksec) Purpose: Perigee Attitude 1d 13:27 9:21 AM Sun 04-Oct
2026:277:14:11:30Maneuver to 11.21480 7.53714 160.970 [2026:277:14:50:18] 1d 14:1710:11 AM Sun 04-Oct
2026:277:14:54:48ER Obsid: 41092 (3 ksec) Purpose: Perigee Attitude 1d 15:0010:54 AM Sun 04-Oct
2026:277:17:22:37Maneuver to 104.04318 22.49235 84.478 [2026:277:17:55:30] 1d 17:28 1:22 PM Sun 04-Oct
2026:277:18:00:00ER Obsid: 41091 (3 ksec) Purpose: Perigee Attitude 1d 18:06 2:00 PM Sun 04-Oct
2026:277:20:44:54Maneuver to 16.00000 4.60000 91.087 [2026:277:21:15:30] 1d 20:50 4:44 PM Sun 04-Oct
2026:277:20:50:00Comm pass on DSS-24 (duration 1:00) 1d 20:56 4:50 PM Sun 04-Oct
2026:277:21:20:00ER Obsid: 41090 (3 ksec) Purpose: Perigee Attitude 1d 21:26 5:20 PM Sun 04-Oct
2026:278:00:06:42Maneuver to 143.53234 -18.69352 99.018 [2026:278:00:46:06] 2d 00:12 8:06 PM Sun 04-Oct
2026:278:00:07:16Grating: NONE 2d 00:13 8:07 PM Sun 04-Oct
2026:278:00:28:18RADMON Enable 2d 00:34 8:28 PM Sun 04-Oct
2026:278:00:50:36Obsid: 30480 SI: ACIS-I (20 ksec) Target: Hoinga 2d 00:56 8:50 PM Sun 04-Oct
2026:278:02:00:00Comm pass on DSS-26 (duration 1:00) 2d 02:0610:00 PM Sun 04-Oct
2026:278:06:23:56Maneuver to 83.87806 -69.29522 72.511 [2026:278:06:49:25] 2d 06:29 2:23 AM Mon 05-Oct
2026:278:06:27:31Grating: LETG 2d 06:33 2:27 AM Mon 05-Oct
2026:278:07:06:21Obsid: 31122 SI: HRC-I (14 ksec) Target: SNR 1987A 2d 07:12 3:06 AM Mon 05-Oct
2026:278:10:00:00Comm pass on DSS-54 (duration 1:00) 2d 10:06 6:00 AM Mon 05-Oct
2026:278:11:08:01Maneuver to 32.20864 0.97828 77.000 [2026:278:11:38:20] 2d 11:14 7:08 AM Mon 05-Oct
2026:278:11:08:50Grating: NONE 2d 11:14 7:08 AM Mon 05-Oct
2026:278:11:42:50Obsid: 31653 SI: ACIS-I (12 ksec) Target: BOSS0210E 2d 11:48 7:42 AM Mon 05-Oct
2026:278:15:11:10Maneuver to 118.50000 -30.90000 94.908 [2026:278:15:41:41] 2d 15:1711:11 AM Mon 05-Oct
2026:278:15:46:11ER Obsid: 41089 (0 ksec) Purpose: Intermediate Attitud 2d 15:5211:46 AM Mon 05-Oct
2026:278:16:01:52Maneuver to 280.32315 -4.94062 271.999 [2026:278:16:44:54] 2d 16:0712:01 PM Mon 05-Oct
2026:278:16:49:24Obsid: 31595 SI: ACIS-S (30 ksec) Target: Kes 73 2d 16:5512:49 PM Mon 05-Oct
2026:278:17:55:00Comm pass on DSS-54 (duration 0:45) 2d 18:01 1:55 PM Mon 05-Oct

CXO and GOES rates
CXOGOESLimit
HRC shield017250
HRC MCP458930
P4GM---0.05300
P41GM---0.018.47
CXO: from snapshot at 2026:275:17:31:26 (- 6:22)
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 flux1185000012000> 30
2hr avg flux1075000012000> 30
Orbital fluence4.0x106---2.0x109---
ACE data from 2026:275:23:40:00 (- 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 01/2100Z to 02/2100Z: The geomagnetic field has been at quiet levels for the past 24 hours. Solar wind speed reached a peak of 320 km/s at 02/0007Z. Total IMF reached 6 nT at 01/2335Z. The maximum southward component of Bz reached -4 nT at 02/0014Z. Electrons greater than 2 MeV at geosynchronous orbit reached a peak level of 933 pfu. IIB. Geophysical Activity Forecast: The geomagnetic field is expected to be at quiet to active levels on days one and three (03 Oct, 05 Oct) and unsettled to minor storm levels on day two (04 Oct).
Solar ActivityAnalysis of Solar Active Regions and Activity from 01/2100Z to 02/2100Z: Solar activity has been at low levels for the past 24 hours. There are currently 3 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 (03 Oct, 04 Oct, 05 Oct).

Solar X-ray Activity

Solar Wind Data ( SOHO ACE )

Solar Flare Monitor