Page content updated: 2026:253:01:06:01 ( 9:06 PM Wed 09-Sep )

Key Snapshot and SOH Values (Δt = - 6:10)
Obsid30367
Format2_NORM
RadMonENAB
CPE StatusNORM
RA50.084
Dec41.502
Roll112.880
Pitch106.16
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 2026:252:18:55:49 (Δt = - 6:10)

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)
2026:252:17:30:00Comm pass on DSS-53 (duration 1:30)- 7:36 1:30 PM Wed 09-Sep
2026:252:20:39:41Maneuver to 352.21644 5.24974 157.172 [2026:252:21:05:09]- 4:26 4:39 PM Wed 09-Sep
2026:252:21:22:06Obsid: 30439 SI: HRC-I (8 ksec) Target: G29-38 - 3:43 5:22 PM Wed 09-Sep
2026:252:23:49:36Maneuver to 349.85500 -13.13200 13.238 [2026:253:00:32:39]- 1:16 7:49 PM Wed 09-Sep
2026:253:00:37:09ER Obsid: 41159 (0 ksec) Purpose: Intermediate Attitud - 0:28 8:37 PM Wed 09-Sep
2026:253:00:52:50Maneuver to 153.89577 -57.27246 164.248 [2026:253:01:27:56]- 0:13 8:52 PM Wed 09-Sep
2026:253:01:06:01--------------- NOW --------------- 0:00 9:06 PM Wed 09-Sep
2026:253:01:30:00Comm pass on DSS-26 (duration 1:00) 0:23 9:30 PM Wed 09-Sep
2026:253:01:32:26Obsid: 32927 SI: ACIS-I (10 ksec) Target: PSR J1015-5719 0:26 9:32 PM Wed 09-Sep
2026:253:03:00:01Load SEP0726A:CL253:0301 [2026:254:13:50:02] 1:5411:00 PM Wed 09-Sep
2026:253:03:00:01Load SEP0726A:CL253:0301 [2026:254:13:50:02] 1:5411:00 PM Wed 09-Sep
2026:253:04:19:06Maneuver to 50.07914 41.49967 107.987 [2026:253:04:59:28] 3:1312:19 AM Thu 10-Sep
2026:253:05:03:58Obsid: 31882 SI: ACIS-I (35 ksec) Target: Perseus cluster 3:57 1:03 AM Thu 10-Sep
2026:253:10:50:00Comm pass on DSS-36 (duration 1:00) 9:43 6:50 AM Thu 10-Sep
2026:253:14:53:57Maneuver to 355.47200 0.59700 128.535 [2026:253:15:19:08] 13:4710:53 AM Thu 10-Sep
2026:253:14:57:31Grating: HETG 13:5110:57 AM Thu 10-Sep
2026:253:14:59:57RADMON Disable 13:5310:59 AM Thu 10-Sep
2026:253:15:23:38ER Obsid: 41158 (3 ksec) Purpose: Perigee Attitude 14:1711:23 AM Thu 10-Sep
2026:253:16:13:38Maneuver to 340.83200 -9.50000 300.381 [2026:253:17:03:06] 15:0712:13 PM Thu 10-Sep
2026:253:17:07:36ER Obsid: 41157 (3 ksec) Purpose: Perigee Attitude 16:01 1:07 PM Thu 10-Sep
2026:253:17:57:36Maneuver to 217.59800 -29.33000 242.292 [2026:253:18:33:44] 16:51 1:57 PM Thu 10-Sep
2026:253:18:38:14ER Obsid: 41156 (1 ksec) Purpose: Perigee Attitude 17:32 2:38 PM Thu 10-Sep
2026:253:18:45:00Comm pass on DSS-56 (duration 1:00) 17:38 2:45 PM Thu 10-Sep
2026:253:18:54:54Maneuver to 340.83200 -9.50000 300.236 [2026:253:19:31:02] 17:48 2:54 PM Thu 10-Sep
2026:253:19:35:32ER Obsid: 41155 (7 ksec) Purpose: Perigee Attitude 18:29 3:35 PM Thu 10-Sep
2026:253:21:40:32Maneuver to 219.00000 -26.60000 244.766 [2026:253:22:16:39] 20:34 5:40 PM Thu 10-Sep
2026:253:22:21:09ER Obsid: 41154 (3 ksec) Purpose: Perigee Attitude 21:15 6:21 PM Thu 10-Sep
2026:253:23:45:00Comm pass on DSS-36 (duration 1:00) 22:38 7:45 PM Thu 10-Sep
2026:254:02:10:28Maneuver to 81.00000 7.00000 91.000 [2026:254:02:55:30] 1d 01:0410:10 PM Thu 10-Sep
2026:254:03:00:00ER Obsid: 41153 (3 ksec) Purpose: Perigee Attitude 1d 01:5311:00 PM Thu 10-Sep
2026:254:05:50:06Maneuver to 9.59719 -2.14936 97.528 [2026:254:06:17:04] 1d 04:44 1:50 AM Fri 11-Sep
2026:254:05:50:40Grating: NONE 1d 04:44 1:50 AM Fri 11-Sep
2026:254:05:59:16RADMON Enable 1d 04:53 1:59 AM Fri 11-Sep
2026:254:06:21:34Obsid: 31711 SI: ACIS-S (15 ksec) Target: 3CR 17 1d 05:15 2:21 AM Fri 11-Sep
2026:254:10:39:54Maneuver to 59.75579 -19.17589 87.917 [2026:254:11:03:11] 1d 09:33 6:39 AM Fri 11-Sep
2026:254:11:03:11ER Obsid: 41152 (0 ksec) Purpose: Perigee Attitude 1d 09:57 7:03 AM Fri 11-Sep
2026:254:11:03:32Maneuver to 153.90459 -57.27199 159.997 [2026:254:11:31:27] 1d 09:57 7:03 AM Fri 11-Sep
2026:254:11:35:57Obsid: 32928 SI: ACIS-I (13 ksec) Target: PSR J1015-5719 1d 10:29 7:35 AM Fri 11-Sep
2026:254:12:20:00Comm pass on DSS-53 (duration 1:00) 1d 11:13 8:20 AM Fri 11-Sep
2026:254:15:09:37Load SEP0726A:CL254:1501 [2026:256:02:40:01] 1d 14:0311:09 AM Fri 11-Sep
2026:254:15:09:37Load SEP0726A:CL254:1501 [2026:256:02:40:01] 1d 14:0311:09 AM Fri 11-Sep
2026:254:15:12:37Maneuver to 350.10600 -13.80000 3.993 [2026:254:15:47:33] 1d 14:0611:12 AM Fri 11-Sep
2026:254:15:52:03ER Obsid: 41151 (0 ksec) Purpose: Perigee Attitude 1d 14:4611:52 AM Fri 11-Sep
2026:254:16:07:44Maneuver to 352.21865 5.25237 164.335 [2026:254:16:54:23] 1d 15:0112:07 PM Fri 11-Sep
2026:254:16:58:53Obsid: 32930 SI: HRC-I (7 ksec) Target: G29-38 1d 15:5212:58 PM Fri 11-Sep
2026:254:18:10:00Comm pass on DSS-54 (duration 1:00) 1d 17:03 2:10 PM Fri 11-Sep
2026:254:19:03:53Maneuver to 182.55430 56.65392 343.795 [2026:254:19:41:11] 1d 17:57 3:03 PM Fri 11-Sep
2026:254:19:45:41Obsid: 31263 SI: ACIS-S (15 ksec) Target: WISEA J121024.5 1d 18:39 3:45 PM Fri 11-Sep
2026:254:23:55:41Maneuver to 60.00000 41.00000 106.529 [2026:255:00:22:45] 1d 22:49 7:55 PM Fri 11-Sep
2026:255:00:22:45ER Obsid: 41150 (0 ksec) Purpose: Intermediate Attitud 1d 23:16 8:22 PM Fri 11-Sep
2026:255:00:23:06Maneuver to 9.59368 -2.15389 86.000 [2026:255:00:50:22] 1d 23:17 8:23 PM Fri 11-Sep
2026:255:00:54:52Obsid: 32932 SI: ACIS-S (14 ksec) Target: 3CR 17 1d 23:48 8:54 PM Fri 11-Sep
2026:255:01:10:00Comm pass on DSS-24 (duration 1:00) 2d 00:03 9:10 PM Fri 11-Sep
2026:255:04:56:32Maneuver to 135.56079 -40.56826 129.521 [2026:255:05:33:39] 2d 03:5012:56 AM Sat 12-Sep
2026:255:05:00:07Grating: HETG 2d 03:54 1:00 AM Sat 12-Sep
2026:255:05:38:09Obsid: 30500 SI: ACIS-S (15 ksec) Target: Vela X-1 2d 04:32 1:38 AM Sat 12-Sep
2026:255:09:48:09Maneuver to 16.94656 -17.53007 63.000 [2026:255:10:21:14] 2d 08:42 5:48 AM Sat 12-Sep
2026:255:09:51:43Grating: NONE 2d 08:45 5:51 AM Sat 12-Sep
2026:255:10:30:34Obsid: 32924 SI: HRC-I (5 ksec) Target: VV 114 2d 09:24 6:30 AM Sat 12-Sep
2026:255:11:30:00Comm pass on DSS-65 (duration 1:00) 2d 10:23 7:30 AM Sat 12-Sep
2026:255:11:53:54Maneuver to 77.06793 27.87095 95.151 [2026:255:12:23:07] 2d 10:47 7:53 AM Sat 12-Sep
2026:255:12:27:37Obsid: 32923 SI: ACIS-S (16 ksec) Target: B2.2 0505+27 2d 11:21 8:27 AM Sat 12-Sep
2026:255:16:54:17Maneuver to 302.77789 -36.08413 294.659 [2026:255:17:42:12] 2d 15:4812:54 PM Sat 12-Sep
2026:255:17:46:42Obsid: 31055 SI: ACIS-S (46 ksec) Target: GL 783 2d 16:40 1:46 PM Sat 12-Sep
2026:255:20:05:00Comm pass on DSS-54 (duration 1:00) 2d 18:58 4:05 PM Sat 12-Sep

CXO and GOES rates
CXOGOESLimit
HRC shield017250
HRC MCP611930
P4GM---0.04300
P41GM---0.018.47
CXO: from snapshot at 2026:252:18:55:49 (- 6:10)
GOES proxies: scaled 15 min average of GOES-16
Last avgs at HRC: - 0:16   P4GM: - 0:16   P41GM: - 0:16
ACE rates
Value2hr limitOrbital limitHours to
Orbital limit
Current flux1365000012000> 30
2hr avg flux1405000012000> 30
Orbital fluence8.0x107---2.0x109---
ACE data from 2026:253:00:55:00 (- 0:11)
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 08/2100Z to 09/2100Z: The geomagnetic field has been at quiet to unsettled levels for the past 24 hours. Solar wind speed reached a peak of 448 km/s at 09/2100Z. Total IMF reached 10.5 nT at 09/0430Z. The maximum southward component of Bz reached -6.9 nT at 09/1344Z. Electrons greater than 2 MeV at geosynchronous orbit reached a peak level of 3370 pfu. IIB. Geophysical Activity Forecast: The geomagnetic field is expected to be at quiet to unsettled levels on days one, two, and three (10 Sep, 11 Sep, 12 Sep).
Solar ActivityAnalysis of Solar Active Regions and Activity from 08/2100Z to 09/2100Z: Solar activity has been at low levels for the past 24 hours. There are currently 8 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 day one (10 Sep) and expected to be very low with a chance for a C-class flares and a slight chance for an M-class flare on day two (11 Sep) and expected to be very low with a chance for a C-class flares on day three (12 Sep).

Solar X-ray Activity

Solar Wind Data ( SOHO ACE )

Solar Flare Monitor