Page content updated: 2026:210:10:44:01 ( 6:44 AM Wed 29-Jul )

Key Snapshot and SOH Values (from current comm)
Obsid29881
Format2_NORM
RadMonENAB
CPE StatusNORM
RA186.490
Dec4.478
Roll245.000
Pitch58.18
Sim Z75625
Sim Focus-467
HETG angle77.59
LETG angle75.71
SCS 107INAC
SCS 128ACT
SCS 129ACT
SCS 130ACT
RadMonENAB
SCS 131ACT
SCS 132ACT
SCS 133ACT
Snapshot from 2026:210:10:42:28 (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)
2026:209:23:45:00Comm pass on DSS-24 (duration 1:00)-10:59 7:45 PM Tue 28-Jul
2026:210:00:57:41Maneuver to 152.74934 -53.99554 204.164 [2026:210:01:42:56]- 9:46 8:57 PM Tue 28-Jul
2026:210:01:47:26ER Obsid: 41295 (0 ksec) Purpose: Intermediate Attitud - 8:56 9:47 PM Tue 28-Jul
2026:210:02:03:07Maneuver to 308.01215 -21.24524 0.508 [2026:210:02:36:54]- 8:4010:03 PM Tue 28-Jul
2026:210:02:41:24Obsid: 31664 SI: ACIS-S (20 ksec) Target: PSO J308.0416-2 - 8:0210:41 PM Tue 28-Jul
2026:210:08:14:44Maneuver to 293.99184 -27.53600 300.867 [2026:210:08:38:05]- 2:29 4:14 AM Wed 29-Jul
2026:210:08:38:05ER Obsid: 41294 (0 ksec) Purpose: Intermediate Attitud - 2:05 4:38 AM Wed 29-Jul
2026:210:08:38:26Maneuver to 186.48514 4.48297 245.001 [2026:210:09:13:45]- 2:05 4:38 AM Wed 29-Jul
2026:210:09:18:15Obsid: 29881 SI: ACIS-S (23 ksec) Target: SDSS J122558.56 - 1:25 5:18 AM Wed 29-Jul
2026:210:10:00:00Comm pass on DSS-34 (duration 1:05)- 0:44 6:00 AM Wed 29-Jul
2026:210:10:44:01--------------- NOW --------------- 0:00 6:44 AM Wed 29-Jul
2026:210:15:41:35Maneuver to 293.99184 -27.53600 300.432 [2026:210:16:16:53] 4:5711:41 AM Wed 29-Jul
2026:210:16:16:53ER Obsid: 41293 (0 ksec) Purpose: Perigee Attitude 5:3212:16 PM Wed 29-Jul
2026:210:16:17:14Maneuver to 308.00777 -21.23976 348.371 [2026:210:16:38:07] 5:3312:17 PM Wed 29-Jul
2026:210:16:42:37Obsid: 32472 SI: ACIS-S (16 ksec) Target: PSO J308.0416-2 5:5812:42 PM Wed 29-Jul
2026:210:21:09:17Maneuver to 258.27443 -31.96023 273.754 [2026:210:21:35:14] 10:25 5:09 PM Wed 29-Jul
2026:210:21:39:44ER Obsid: 41292 (0 ksec) Purpose: Intermediate Attitud 10:55 5:39 PM Wed 29-Jul
2026:210:21:55:25Maneuver to 220.89905 58.91844 253.005 [2026:210:22:28:43] 11:11 5:55 PM Wed 29-Jul
2026:210:22:33:13Obsid: 31309 SI: ACIS-S (25 ksec) Target: ZTF26aavrgaw 11:49 6:33 PM Wed 29-Jul
2026:211:00:00:00Load JUL2926A:CL211:0008 [2026:212:19:14:38] 13:15 8:00 PM Wed 29-Jul
2026:211:00:00:00Load JUL2926A:CL211:0008 [2026:212:19:14:38] 13:15 8:00 PM Wed 29-Jul
2026:211:05:29:53Maneuver to 267.17232 -27.13822 273.455 [2026:211:06:03:07] 18:45 1:29 AM Thu 30-Jul
2026:211:06:07:37Obsid: 29822 SI: ACIS-S (11 ksec) Target: SNR G1.9+0.3 19:23 2:07 AM Thu 30-Jul
2026:211:09:18:40Maneuver to 141.80000 -28.70000 195.856 [2026:211:09:52:42] 22:34 5:18 AM Thu 30-Jul
2026:211:09:22:15Grating: HETG 22:38 5:22 AM Thu 30-Jul
2026:211:09:24:18RADMON Disable 22:40 5:24 AM Thu 30-Jul
2026:211:09:57:12ER Obsid: 41291 (0 ksec) Purpose: Perigee Attitude 23:13 5:57 AM Thu 30-Jul
2026:211:10:12:53Maneuver to 138.22571 69.76078 349.209 [2026:211:10:59:46] 23:28 6:12 AM Thu 30-Jul
2026:211:11:04:16ER Obsid: 41290 (0 ksec) Purpose: Perigee Attitude 1d 00:20 7:04 AM Thu 30-Jul
2026:211:11:19:57Maneuver to 261.80000 36.50000 227.739 [2026:211:11:45:43] 1d 00:35 7:19 AM Thu 30-Jul
2026:211:11:35:00Comm pass on DSS-34 (duration 1:40) 1d 00:50 7:35 AM Thu 30-Jul
2026:211:11:50:13ER Obsid: 41289 (3 ksec) Purpose: Perigee Attitude 1d 01:06 7:50 AM Thu 30-Jul
2026:211:14:39:28Maneuver to 307.40000 -15.40000 212.773 [2026:211:15:05:30] 1d 03:5510:39 AM Thu 30-Jul
2026:211:15:10:00ER Obsid: 41288 (6 ksec) Purpose: Perigee Attitude 1d 04:2511:10 AM Thu 30-Jul
2026:211:16:50:00Maneuver to 138.22571 69.76078 349.543 [2026:211:17:29:09] 1d 06:0512:50 PM Thu 30-Jul
2026:211:17:33:39ER Obsid: 41287 (5 ksec) Purpose: Perigee Attitude 1d 06:49 1:33 PM Thu 30-Jul
2026:211:19:05:19Maneuver to 307.40000 -15.40000 215.460 [2026:211:19:44:33] 1d 08:21 3:05 PM Thu 30-Jul
2026:211:19:49:03ER Obsid: 41286 (3 ksec) Purpose: Perigee Attitude 1d 09:05 3:49 PM Thu 30-Jul
2026:211:21:25:11Maneuver to 220.90050 58.91709 252.004 [2026:211:21:58:48] 1d 10:41 5:25 PM Thu 30-Jul
2026:211:21:25:46Grating: NONE 1d 10:41 5:25 PM Thu 30-Jul
2026:211:21:39:00RADMON Enable 1d 10:54 5:39 PM Thu 30-Jul
2026:211:22:03:18Obsid: 32470 SI: ACIS-S (24 ksec) Target: ZTF26aavrgaw 1d 11:19 6:03 PM Thu 30-Jul
2026:212:03:00:00Comm pass on DSS-24 (duration 1:00) 1d 16:1511:00 PM Thu 30-Jul
2026:212:04:43:18Maneuver to 298.94178 2.26652 207.542 [2026:212:05:12:33] 1d 17:5912:43 AM Fri 31-Jul
2026:212:05:17:03Obsid: 32465 SI: ACIS-I (10 ksec) Target: CIZAJ1955.8+021 1d 18:33 1:17 AM Fri 31-Jul
2026:212:08:03:43Maneuver to 182.01538 29.31357 271.064 [2026:212:08:39:45] 1d 21:19 4:03 AM Fri 31-Jul
2026:212:08:44:15Obsid: 29760 SI: ACIS-S (1 ksec) Target: 1eRASS J120806. 1d 22:00 4:44 AM Fri 31-Jul
2026:212:09:15:55Maneuver to 37.21292 34.01340 110.987 [2026:212:09:55:18] 1d 22:31 5:15 AM Fri 31-Jul
2026:212:09:59:48Obsid: 31976 SI: ACIS-I (9 ksec) Target: PSZ2G144.99-24. 1d 23:15 5:59 AM Fri 31-Jul
2026:212:12:39:48Maneuver to 316.81906 -13.93902 125.558 [2026:212:13:10:49] 2d 01:55 8:39 AM Fri 31-Jul
2026:212:13:15:19Obsid: 32466 SI: ACIS-S (10 ksec) Target: Gaia DR2 688534 2d 02:31 9:15 AM Fri 31-Jul
2026:212:16:05:19Maneuver to 49.96927 41.40421 90.988 [2026:212:16:38:52] 2d 05:2112:05 PM Fri 31-Jul
2026:212:16:43:22Obsid: 30347 SI: ACIS-I (22 ksec) Target: Perseus cluster 2d 05:5912:43 PM Fri 31-Jul
2026:212:22:55:22Load JUL2926A:CL212:2208 [2026:215:01:04:13] 2d 12:11 6:55 PM Fri 31-Jul
2026:212:22:55:22Load JUL2926A:CL212:2208 [2026:215:01:04:13] 2d 12:11 6:55 PM Fri 31-Jul
2026:212:22:58:22Maneuver to 314.20000 -15.30000 131.279 [2026:212:23:32:37] 2d 12:14 6:58 PM Fri 31-Jul
2026:212:23:37:07ER Obsid: 41285 (0 ksec) Purpose: Perigee Attitude 2d 12:53 7:37 PM Fri 31-Jul
2026:212:23:52:48Maneuver to 308.01150 -21.22419 319.033 [2026:213:00:41:39] 2d 13:08 7:52 PM Fri 31-Jul
2026:213:00:30:00Comm pass on DSS-26 (duration 1:00) 2d 13:45 8:30 PM Fri 31-Jul
2026:213:00:46:09Obsid: 32473 SI: ACIS-S (10 ksec) Target: PSO J308.0416-2 2d 14:02 8:46 PM Fri 31-Jul
2026:213:03:32:49Maneuver to 174.00000 -36.00000 224.524 [2026:213:04:07:51] 2d 16:4811:32 PM Fri 31-Jul
2026:213:04:12:21ER Obsid: 41284 (0 ksec) Purpose: Perigee Attitude 2d 17:2812:12 AM Sat 01-Aug
2026:213:04:28:02Maneuver to 49.97006 41.40395 91.987 [2026:213:05:16:14] 2d 17:4412:28 AM Sat 01-Aug
2026:213:05:20:44Obsid: 30350 SI: ACIS-I (20 ksec) Target: Perseus cluster 2d 18:36 1:20 AM Sat 01-Aug

CXO and GOES rates
CXOGOESLimit
HRC shield017250
HRC MCP611930
P4GM---0.03300
P41GM---0.018.47
CXO: from snapshot at 2026:210:10:42:28 (- 0:01)
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 flux12.85000012000> 30
2hr avg flux14.25000012000> 30
Orbital fluence1.9x106---2.0x109---
ACE data from 2026:210:10:30:00 (- 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 27/2100Z to 28/2100Z: The geomagnetic field has been at quiet to unsettled levels for the past 24 hours. Solar wind speed reached a peak of 407 km/s at 28/2050z. Total IMF reached 8 nT at 28/0806Z. The maximum southward component of Bz reached -6 nT at 27/2221Z. Electrons greater than 2 MeV at geosynchronous orbit reached a peak level of 863 pfu. IIB. Geophysical Activity Forecast: The geomagnetic field is expected to be at quiet to unsettled levels on day one (29 Jul) and quiet to active levels on days two and three (30 Jul, 31 Jul).
Solar ActivityAnalysis of Solar Active Regions and Activity from 27/2100Z to 28/2100Z: Solar activity has been at low levels for the past 24 hours. There are currently 7 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 (29 Jul, 30 Jul, 31 Jul).

Solar X-ray Activity

Solar Wind Data ( SOHO ACE )

Solar Flare Monitor