Page content updated: 2026:155:06:37:01 ( 2:37 AM Thu 04-Jun )

Key Snapshot and SOH Values (Δt = - 3:15)
Obsid30263
Format2_NORM
RadMonENAB
CPE StatusNORM
RA150.197
Dec1.935
Roll241.000
Pitch78.37
Sim Z92903
Sim Focus-535
HETG angle77.59
LETG angle76.09
SCS 107INAC
SCS 128ACT
SCS 129ACT
SCS 130ACT
RadMonENAB
SCS 131ACT
SCS 132ACT
SCS 133ACT
Snapshot from 2026:155:03:21:40 (Δt = - 3:15)

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)
2026:154:18:48:32Obsid: 32375 SI: ACIS-S (14 ksec) Target: SNR G1.9+0.3 -11:48 2:48 PM Wed 03-Jun
2026:154:19:50:00Comm pass on DSS-65 (duration 1:00)-10:47 3:50 PM Wed 03-Jun
2026:154:22:47:12Load JUN0126A:CL154:2201 [2026:156:10:09:36]- 7:49 6:47 PM Wed 03-Jun
2026:154:22:47:12Load JUN0126A:CL154:2201 [2026:156:10:09:36]- 7:49 6:47 PM Wed 03-Jun
2026:154:22:50:12Maneuver to 234.46837 -24.50138 274.437 [2026:154:23:31:07]- 7:46 6:50 PM Wed 03-Jun
2026:154:23:35:37ER Obsid: 41444 (0 ksec) Purpose: Intermediate Attitud - 7:01 7:35 PM Wed 03-Jun
2026:154:23:51:18Maneuver to 150.19804 1.93850 241.000 [2026:155:00:21:29]- 6:45 7:51 PM Wed 03-Jun
2026:155:00:25:59Obsid: 30263 SI: ACIS-I (30 ksec) Target: Center of COSMO - 6:11 8:25 PM Wed 03-Jun
2026:155:02:25:00Comm pass on DSS-24 (duration 1:00)- 4:1210:25 PM Wed 03-Jun
2026:155:06:37:01--------------- NOW --------------- 0:00 2:37 AM Thu 04-Jun
2026:155:08:45:59Maneuver to 241.92844 -23.94543 277.598 [2026:155:09:17:41] 2:08 4:45 AM Thu 04-Jun
2026:155:09:22:11ER Obsid: 41443 (0 ksec) Purpose: Perigee Attitude 2:45 5:22 AM Thu 04-Jun
2026:155:09:37:52Maneuver to 267.18461 -27.19054 62.999 [2026:155:10:18:57] 3:00 5:37 AM Thu 04-Jun
2026:155:10:23:27Obsid: 32376 SI: ACIS-S (12 ksec) Target: SNR G1.9+0.3 3:46 6:23 AM Thu 04-Jun
2026:155:12:30:00Comm pass on DSS-36 (duration 1:00) 5:52 8:30 AM Thu 04-Jun
2026:155:13:56:47Maneuver to 153.81962 -57.31365 239.925 [2026:155:14:33:01] 7:19 9:56 AM Thu 04-Jun
2026:155:14:37:31Obsid: 30119 SI: ACIS-I (21 ksec) Target: PSR J1015-5719 8:0010:37 AM Thu 04-Jun
2026:155:20:42:05Maneuver to 248.24393 -25.25018 304.539 [2026:155:21:09:01] 14:05 4:42 PM Thu 04-Jun
2026:155:20:45:39Grating: HETG 14:08 4:45 PM Thu 04-Jun
2026:155:20:48:05RADMON Disable 14:11 4:48 PM Thu 04-Jun
2026:155:21:13:31ER Obsid: 41442 (3 ksec) Purpose: Perigee Attitude 14:36 5:13 PM Thu 04-Jun
2026:155:22:03:31Maneuver to 247.70174 -20.98458 251.089 [2026:155:22:26:23] 15:26 6:03 PM Thu 04-Jun
2026:155:22:30:53ER Obsid: 41441 (3 ksec) Purpose: Perigee Attitude 15:53 6:30 PM Thu 04-Jun
2026:155:23:05:00Comm pass on DSS-54 (duration 1:00) 16:27 7:05 PM Thu 04-Jun
2026:156:02:24:07Maneuver to 162.47679 16.79917 248.447 [2026:156:02:55:30] 19:4710:24 PM Thu 04-Jun
2026:156:03:00:00ER Obsid: 41440 (3 ksec) Purpose: Perigee Attitude 20:2211:00 PM Thu 04-Jun
2026:156:03:50:00Maneuver to 123.16322 14.50080 252.603 [2026:156:04:09:30] 21:1211:50 PM Thu 04-Jun
2026:156:04:14:00ER Obsid: 41439 (3 ksec) Purpose: Perigee Attitude 21:3612:14 AM Fri 05-Jun
2026:156:08:49:53Maneuver to 206.13059 -22.93933 261.038 [2026:156:09:20:44] 1d 02:12 4:49 AM Fri 05-Jun
2026:156:08:50:28Grating: NONE 1d 02:13 4:50 AM Fri 05-Jun
2026:156:09:11:40RADMON Enable 1d 02:34 5:11 AM Fri 05-Jun
2026:156:09:25:14Obsid: 32333 SI: ACIS-S (14 ksec) Target: LEDA 184063 1d 02:48 5:25 AM Fri 05-Jun
2026:156:11:21:18Load JUN0126A:CL156:1101 [2026:157:23:09:24] 1d 04:44 7:21 AM Fri 05-Jun
2026:156:11:21:18Load JUN0126A:CL156:1101 [2026:157:23:09:24] 1d 04:44 7:21 AM Fri 05-Jun
2026:156:12:30:00Comm pass on DSS-23 (duration 1:00) 1d 05:52 8:30 AM Fri 05-Jun
2026:156:13:18:34Maneuver to 169.59410 -32.81066 245.001 [2026:156:13:36:53] 1d 06:41 9:18 AM Fri 05-Jun
2026:156:13:41:23Obsid: 31168 SI: ACIS-S (43 ksec) Target: SN 2024ggi 1d 07:04 9:41 AM Fri 05-Jun
2026:156:16:50:00Comm pass on DSS-65 (duration 1:00) 1d 10:1212:50 PM Fri 05-Jun
2026:156:23:55:00Comm pass on DSS-65 (duration 1:00) 1d 17:17 7:55 PM Fri 05-Jun
2026:157:01:41:23Maneuver to 189.92076 -5.32056 234.001 [2026:157:02:00:44] 1d 19:04 9:41 PM Fri 05-Jun
2026:157:01:44:58Grating: HETG 1d 19:07 9:44 PM Fri 05-Jun
2026:157:02:05:14Obsid: 32243 SI: ACIS-S (10 ksec) Target: NGC 4593 1d 19:2810:05 PM Fri 05-Jun
2026:157:04:51:54Maneuver to 153.81936 -57.31526 239.925 [2026:157:05:17:16] 1d 22:1412:51 AM Sat 06-Jun
2026:157:04:55:29Grating: NONE 1d 22:1812:55 AM Sat 06-Jun
2026:157:05:23:28Obsid: 32372 SI: ACIS-I (10 ksec) Target: PSR J1015-5719 1d 22:46 1:23 AM Sat 06-Jun
2026:157:08:10:08Maneuver to 206.13249 -22.94491 260.695 [2026:157:08:32:56] 2d 01:33 4:10 AM Sat 06-Jun
2026:157:08:37:26Obsid: 32334 SI: ACIS-S (15 ksec) Target: LEDA 184063 2d 02:00 4:37 AM Sat 06-Jun
2026:157:11:45:00Comm pass on DSS-24 (duration 0:50) 2d 05:07 7:45 AM Sat 06-Jun
2026:157:12:50:46Maneuver to 149.82365 2.07391 235.300 [2026:157:13:15:29] 2d 06:13 8:50 AM Sat 06-Jun
2026:157:13:19:59Obsid: 30268 SI: ACIS-I (15 ksec) Target: Center of COSMO 2d 06:42 9:19 AM Sat 06-Jun
2026:157:17:29:59Maneuver to 238.80375 -33.30870 303.772 [2026:157:18:02:21] 2d 10:52 1:29 PM Sat 06-Jun
2026:157:18:06:51Obsid: 32370 SI: ACIS-S (10 ksec) Target: PKS1552m331_fie 2d 11:29 2:06 PM Sat 06-Jun
2026:157:20:05:00Comm pass on DSS-65 (duration 1:00) 2d 13:27 4:05 PM Sat 06-Jun
2026:157:20:53:31Maneuver to 135.15317 20.91750 250.000 [2026:157:21:30:19] 2d 14:16 4:53 PM Sat 06-Jun
2026:157:21:34:49Obsid: 31884 SI: ACIS-S (15 ksec) Target: ZwCl 0857.9+210 2d 14:57 5:34 PM Sat 06-Jun
2026:157:23:45:00Comm pass on DSS-56 (duration 1:00) 2d 17:07 7:45 PM Sat 06-Jun
2026:157:23:45:00Load JUN0126A:CL157:2301 [2026:159:03:18:11] 2d 17:07 7:45 PM Sat 06-Jun
2026:157:23:45:00Load JUN0126A:CL157:2301 [2026:159:03:18:11] 2d 17:07 7:45 PM Sat 06-Jun
2026:158:01:44:49Maneuver to 238.67014 -37.62487 303.985 [2026:158:02:21:31] 2d 19:07 9:44 PM Sat 06-Jun
2026:158:02:26:01Obsid: 32369 SI: ACIS-S (10 ksec) Target: IGR J15549-3740 2d 19:4910:26 PM Sat 06-Jun
2026:158:05:16:01Maneuver to 135.15195 20.91946 252.201 [2026:158:05:52:37] 2d 22:39 1:16 AM Sun 07-Jun
2026:158:05:57:07Obsid: 32374 SI: ACIS-S (14 ksec) Target: ZwCl 0857.9+210 2d 23:20 1:57 AM Sun 07-Jun

CXO and GOES rates
CXOGOESLimit
HRC shield017250
HRC MCP484430
P4GM---0.04300
P41GM---0.018.47
CXO: from snapshot at 2026:155:03:21:40 (- 3:15)
GOES proxies: scaled 15 min average of GOES-16
Last avgs at HRC: - 0:17   P4GM: - 0:19   P41GM: - 0:17
ACE rates
Value2hr limitOrbital limitHours to
Orbital limit
Current flux3385000012000> 30
2hr avg flux3175000012000> 30
Orbital fluence1.7x107---2.0x109---
ACE data from 2026:155:06:25:00 (- 0:12)
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 02/2100Z to 03/2100Z: The geomagnetic field has been at quiet to unsettled levels for the past 24 hours. Solar wind speed reached a peak of 457 km/s at 03/1047Z. Total IMF reached 11 nT at 03/2049Z. The maximum southward component of Bz reached -8 nT at 03/2046Z. Electrons greater than 2 MeV at geosynchronous orbit reached a peak level of 745 pfu. IIB. Geophysical Activity Forecast: The geomagnetic field is expected to be at unsettled to severe storm levels on day one (04 Jun), active to severe storm levels on day two (05 Jun) and unsettled to active levels on day three (06 Jun). Protons have a slight chance of crossing threshold on days one, two, and three (04 Jun, 05 Jun, 06 Jun).
Solar ActivityAnalysis of Solar Active Regions and Activity from 02/2100Z to 03/2100Z: Solar activity has been at high 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 moderate with a slight chance for an X-class flare on days one, two, and three (04 Jun, 05 Jun, 06 Jun).

Solar X-ray Activity

Solar Wind Data ( SOHO ACE )

Solar Flare Monitor