Page content updated: 2026:295:10:55:01 ( 6:55 AM Thu 22-Oct )

Key Snapshot and SOH Values (from current comm)
Obsid33519
Format2_NORM
RadMonENAB
CPE StatusNORM
RA27.369
Dec5.419
Roll15.015
Pitch174.34
Sim Z75624
Sim Focus-535
HETG angle77.59
LETG angle75.71
SCS 107INAC
SCS 128ACT
SCS 129INAC
SCS 130ACT
RadMonENAB
SCS 131ACT
SCS 132INAC
SCS 133ACT
Snapshot from 2026:295:10:53:30 (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)
2026:294:22:59:09Load OCT1926A:CL294:2201 [2026:296:10:10:01]-11:55 6:59 PM Wed 21-Oct
2026:294:22:59:09Load OCT1926A:CL294:2201 [2026:296:10:10:01]-11:55 6:59 PM Wed 21-Oct
2026:294:23:02:09Maneuver to 15.15086 -16.55167 337.597 [2026:294:23:35:01]-11:52 7:02 PM Wed 21-Oct
2026:294:23:35:01ER Obsid: 41042 (0 ksec) Purpose: Perigee Attitude -11:20 7:35 PM Wed 21-Oct
2026:294:23:35:22Maneuver to 27.14322 5.98908 15.001 [2026:294:23:56:11]-11:19 7:35 PM Wed 21-Oct
2026:295:00:00:41Obsid: 31691 SI: ACIS-I (10 ksec) Target: SDSS J014837.63 -10:54 8:00 PM Wed 21-Oct
2026:295:00:35:00Comm pass on DSS-23 (duration 0:50)-10:20 8:35 PM Wed 21-Oct
2026:295:02:47:21Maneuver to 15.15086 -16.55167 337.382 [2026:295:03:08:13]- 8:0710:47 PM Wed 21-Oct
2026:295:03:08:13ER Obsid: 41041 (0 ksec) Purpose: Perigee Attitude - 7:4611:08 PM Wed 21-Oct
2026:295:03:08:34Maneuver to 266.53759 -28.86951 265.341 [2026:295:03:41:25]- 7:4611:08 PM Wed 21-Oct
2026:295:03:45:55Obsid: 33515 SI: ACIS-I (12 ksec) Target: CMZ Molecular C - 7:0911:45 PM Wed 21-Oct
2026:295:07:05:55Maneuver to 15.15086 -16.55167 337.107 [2026:295:07:38:47]- 3:49 3:05 AM Thu 22-Oct
2026:295:07:38:47ER Obsid: 41040 (0 ksec) Purpose: Perigee Attitude - 3:16 3:38 AM Thu 22-Oct
2026:295:07:39:08Maneuver to 27.14219 5.98821 15.002 [2026:295:08:00:02]- 3:15 3:39 AM Thu 22-Oct
2026:295:08:04:32Obsid: 33519 SI: ACIS-I (10 ksec) Target: SDSS J014837.63 - 2:50 4:04 AM Thu 22-Oct
2026:295:10:00:00Comm pass on DSS-53 (duration 1:00)- 0:55 6:00 AM Thu 22-Oct
2026:295:10:51:12Maneuver to 156.52909 -57.83061 119.775 [2026:295:11:27:51]- 0:03 6:51 AM Thu 22-Oct
2026:295:10:54:46Grating: HETG 0:00 6:54 AM Thu 22-Oct
2026:295:10:55:01--------------- NOW --------------- 0:00 6:55 AM Thu 22-Oct
2026:295:11:32:21Obsid: 33517 SI: ACIS-S (16 ksec) Target: WR21a 0:37 7:32 AM Thu 22-Oct
2026:295:16:07:21Maneuver to 27.14122 5.98740 15.002 [2026:295:16:43:59] 5:1212:07 PM Thu 22-Oct
2026:295:16:10:55Grating: NONE 5:1512:10 PM Thu 22-Oct
2026:295:16:48:29Obsid: 33520 SI: ACIS-I (20 ksec) Target: SDSS J014837.63 5:5312:48 PM Thu 22-Oct
2026:295:18:00:00Comm pass on DSS-53 (duration 1:00) 7:04 2:00 PM Thu 22-Oct
2026:295:22:28:27Maneuver to 172.43159 -49.33952 131.021 [2026:295:23:07:52] 11:33 6:28 PM Thu 22-Oct
2026:295:22:32:01Grating: HETG 11:37 6:32 PM Thu 22-Oct
2026:295:22:34:27RADMON Disable 11:39 6:34 PM Thu 22-Oct
2026:295:23:12:22ER Obsid: 41039 (3 ksec) Purpose: Perigee Attitude 12:17 7:12 PM Thu 22-Oct
2026:296:00:02:22Maneuver to 254.71264 -29.67439 257.616 [2026:296:00:33:22] 13:07 8:02 PM Thu 22-Oct
2026:296:00:35:00Comm pass on DSS-24 (duration 1:00) 13:39 8:35 PM Thu 22-Oct
2026:296:00:37:52ER Obsid: 41038 (3 ksec) Purpose: Perigee Attitude 13:42 8:37 PM Thu 22-Oct
2026:296:04:57:35Maneuver to 338.76771 -18.27767 297.861 [2026:296:05:25:30] 18:0212:57 AM Fri 23-Oct
2026:296:05:30:00ER Obsid: 41037 (3 ksec) Purpose: Perigee Attitude 18:34 1:30 AM Fri 23-Oct
2026:296:08:11:45Maneuver to 69.52638 56.90026 127.493 [2026:296:08:55:30] 21:16 4:11 AM Fri 23-Oct
2026:296:09:00:00ER Obsid: 41036 (0 ksec) Purpose: Perigee Attitude 22:04 5:00 AM Fri 23-Oct
2026:296:09:15:41Maneuver to 142.99662 59.62729 62.407 [2026:296:09:34:47] 22:20 5:15 AM Fri 23-Oct
2026:296:09:39:17ER Obsid: 41035 (0 ksec) Purpose: Perigee Attitude 22:44 5:39 AM Fri 23-Oct
2026:296:10:10:00Comm pass on DSS-65 (duration 1:00) 23:14 6:10 AM Fri 23-Oct
2026:296:10:31:15Load OCT1926A:CL296:1001 [2026:297:22:29:06] 23:36 6:31 AM Fri 23-Oct
2026:296:10:31:15Load OCT1926A:CL296:1001 [2026:297:22:29:06] 23:36 6:31 AM Fri 23-Oct
2026:296:10:34:15Maneuver to 28.11684 13.73004 168.353 [2026:296:11:05:30] 23:39 6:34 AM Fri 23-Oct
2026:296:11:10:00ER Obsid: 41034 (0 ksec) Purpose: Perigee Attitude 1d 00:14 7:10 AM Fri 23-Oct
2026:296:11:35:38Maneuver to 159.68261 53.48098 48.473 [2026:296:12:09:17] 1d 00:40 7:35 AM Fri 23-Oct
2026:296:11:36:13Grating: NONE 1d 00:41 7:36 AM Fri 23-Oct
2026:296:11:55:55RADMON Enable 1d 01:00 7:55 AM Fri 23-Oct
2026:296:12:13:47Obsid: 33478 SI: ACIS-S (10 ksec) Target: SN2026sqf 1d 01:18 8:13 AM Fri 23-Oct
2026:296:15:00:27Maneuver to 78.28244 12.21755 85.306 [2026:296:15:28:28] 1d 04:0511:00 AM Fri 23-Oct
2026:296:15:20:00Comm pass on DSS-54 (duration 1:00) 1d 04:2411:20 AM Fri 23-Oct
2026:296:15:28:28ER Obsid: 41033 (0 ksec) Purpose: Intermediate Attitud 1d 04:3311:28 AM Fri 23-Oct
2026:296:15:28:49Maneuver to 32.18747 0.98059 22.366 [2026:296:15:57:56] 1d 04:3311:28 AM Fri 23-Oct
2026:296:16:02:26Obsid: 31238 SI: ACIS-I (19 ksec) Target: BOSS0210E 1d 05:0712:02 PM Fri 23-Oct
2026:296:21:19:06Maneuver to 167.90000 -47.20000 123.216 [2026:296:21:56:47] 1d 10:24 5:19 PM Fri 23-Oct
2026:296:22:01:17ER Obsid: 41032 (0 ksec) Purpose: Perigee Attitude 1d 11:06 6:01 PM Fri 23-Oct
2026:296:22:16:58Maneuver to 191.06363 36.06013 21.877 [2026:296:22:56:06] 1d 11:21 6:16 PM Fri 23-Oct
2026:296:22:40:00Comm pass on DSS-26 (duration 0:50) 1d 11:44 6:40 PM Fri 23-Oct
2026:296:23:00:36Obsid: 31650 SI: ACIS-I (14 ksec) Target: [ZCA2021] BOSS1 1d 12:05 7:00 PM Fri 23-Oct
2026:297:02:53:56Maneuver to 30.70000 18.00000 159.207 [2026:297:03:32:14] 1d 15:5810:53 PM Fri 23-Oct
2026:297:03:36:44ER Obsid: 41031 (0 ksec) Purpose: Perigee Attitude 1d 16:4111:36 PM Fri 23-Oct
2026:297:03:52:25Maneuver to 32.18562 0.98021 19.774 [2026:297:04:34:27] 1d 16:5711:52 PM Fri 23-Oct
2026:297:04:38:57Obsid: 33512 SI: ACIS-I (15 ksec) Target: BOSS0210E 1d 17:4312:38 AM Sat 24-Oct
2026:297:08:48:57Maneuver to 167.90000 -47.20000 122.621 [2026:297:09:26:39] 1d 21:53 4:48 AM Sat 24-Oct
2026:297:09:31:09ER Obsid: 41030 (0 ksec) Purpose: Perigee Attitude 1d 22:36 5:31 AM Sat 24-Oct
2026:297:09:46:50Maneuver to 191.06241 36.05878 22.341 [2026:297:10:25:50] 1d 22:51 5:46 AM Sat 24-Oct
2026:297:10:30:20Obsid: 33518 SI: ACIS-I (14 ksec) Target: [ZCA2021] BOSS1 1d 23:35 6:30 AM Sat 24-Oct
2026:297:10:40:00Comm pass on DSS-53 (duration 1:00) 1d 23:44 6:40 AM Sat 24-Oct
2026:297:14:23:40Maneuver to 30.70000 18.00000 162.296 [2026:297:15:01:57] 2d 03:2810:23 AM Sat 24-Oct
2026:297:15:06:27ER Obsid: 41029 (0 ksec) Purpose: Perigee Attitude 2d 04:1111:06 AM Sat 24-Oct
2026:297:15:22:08Maneuver to 32.18370 0.97979 17.408 [2026:297:16:05:22] 2d 04:2711:22 AM Sat 24-Oct
2026:297:16:09:52Obsid: 33513 SI: ACIS-I (14 ksec) Target: BOSS0210E 2d 05:1412:09 PM Sat 24-Oct
2026:297:17:35:00Comm pass on DSS-65 (duration 1:00) 2d 06:39 1:35 PM Sat 24-Oct
2026:297:20:03:12Maneuver to 76.22842 -11.96721 64.779 [2026:297:20:27:57] 2d 09:08 4:03 PM Sat 24-Oct
2026:297:20:27:57ER Obsid: 41028 (0 ksec) Purpose: Intermediate Attitud 2d 09:32 4:27 PM Sat 24-Oct
2026:297:20:28:18Maneuver to 152.79695 8.52486 70.695 [2026:297:20:56:49] 2d 09:33 4:28 PM Sat 24-Oct
2026:297:21:01:19Obsid: 31134 SI: ACIS-S (15 ksec) Target: 1eRASS J101111. 2d 10:06 5:01 PM Sat 24-Oct
2026:297:22:51:24Load OCT1926A:CL297:2201 [2026:298:16:37:00] 2d 11:56 6:51 PM Sat 24-Oct
2026:297:22:51:24Load OCT1926A:CL297:2201 [2026:298:16:37:00] 2d 11:56 6:51 PM Sat 24-Oct
2026:297:22:55:00Comm pass on DSS-24 (duration 1:00) 2d 11:59 6:55 PM Sat 24-Oct
2026:298:01:11:19Maneuver to 36.66437 15.35078 113.915 [2026:298:01:47:19] 2d 14:16 9:11 PM Sat 24-Oct
2026:298:01:51:49Obsid: 33511 SI: ACIS-S (10 ksec) Target: Gaia DR2 761173 2d 14:56 9:51 PM Sat 24-Oct
2026:298:04:43:29Maneuver to 150.52628 16.48098 63.001 [2026:298:05:18:22] 2d 17:4812:43 AM Sun 25-Oct
2026:298:05:22:52Obsid: 31279 SI: ACIS-S (17 ksec) Target: SDSS J100207.03 2d 18:27 1:22 AM Sun 25-Oct
2026:298:10:06:12Maneuver to 38.23343 20.27454 132.965 [2026:298:10:40:37] 2d 23:11 6:06 AM Sun 25-Oct
2026:298:10:45:07Obsid: 33510 SI: ACIS-S (10 ksec) Target: QSOB0229+200 2d 23:50 6:45 AM Sun 25-Oct

CXO and GOES rates
CXOGOESLimit
HRC shield017250
HRC MCP484430
P4GM---0.06300
P41GM---0.018.47
CXO: from snapshot at 2026:295:10:53:30 (- 0:01)
GOES proxies: scaled 15 min average of GOES-16
Last avgs at HRC: - 0:30   P4GM: - 0:27   P41GM: - 0:30
ACE rates
Value2hr limitOrbital limitHours to
Orbital limit
Current flux9.715000012000> 30
2hr avg flux10.35000012000> 30
Orbital fluence2.2x106---2.0x109---
ACE data from 2026:295:10:30:00 (- 0:25)
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 20/2100Z to 21/2100Z: The geomagnetic field has been at quiet to active levels for the past 24 hours. Solar wind speed reached a peak of 527 km/s at 21/1445Z. Total IMF reached 10 nT at 21/0736Z. The maximum southward component of Bz reached -8 nT at 21/1945Z. Electrons greater than 2 MeV at geosynchronous orbit reached a peak level of 381 pfu. IIB. Geophysical Activity Forecast: The geomagnetic field is expected to be at quiet to active levels on days one and three (22 Oct, 24 Oct) and quiet levels on day two (23 Oct).
Solar ActivityAnalysis of Solar Active Regions and Activity from 20/2100Z to 21/2100Z: 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 likely to be low with a slight chance for an M-class flare on days one, two, and three (22 Oct, 23 Oct, 24 Oct).

Solar X-ray Activity

Solar Wind Data ( SOHO ACE )

Solar Flare Monitor