Page content updated: 2026:154:08:59:01 ( 4:59 AM Wed 03-Jun )

Key Snapshot and SOH Values (Δt = - 5:03)
Obsid29885
Format2_NORM
RadMonENAB
CPE StatusNORM
RA171.857
Dec19.859
Roll245.367
Pitch92.07
Sim Z75623
Sim Focus-467
HETG angle77.59
LETG angle76.09
SCS 107INAC
SCS 128ACT
SCS 129ACT
SCS 130ACT
RadMonENAB
SCS 131ACT
SCS 132ACT
SCS 133ACT
Snapshot from 2026:154:03:55:06 (Δt = - 5:03)

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)
2026:154:01:30:34Maneuver to 171.86034 19.85587 245.366 [2026:154:02:14:12]- 7:28 9:30 PM Tue 02-Jun
2026:154:02:18:42Obsid: 29885 SI: ACIS-S (40 ksec) Target: SDSS J112728.73 - 6:4010:18 PM Tue 02-Jun
2026:154:03:00:00Comm pass on DSS-65 (duration 1:00)- 5:5911:00 PM Tue 02-Jun
2026:154:08:59:01--------------- NOW --------------- 0:00 4:59 AM Wed 03-Jun
2026:154:12:50:00Comm pass on DSS-26 (duration 1:00) 3:50 8:50 AM Wed 03-Jun
2026:154:13:25:22Maneuver to 135.91172 -67.94801 238.713 [2026:154:13:56:55] 4:26 9:25 AM Wed 03-Jun
2026:154:14:01:25Obsid: 31146 SI: ACIS-S (15 ksec) Target: SN2026hkg 5:0210:01 AM Wed 03-Jun
2026:154:18:11:25Maneuver to 267.18425 -27.18864 61.999 [2026:154:18:44:02] 9:12 2:11 PM Wed 03-Jun
2026:154:18:48:32Obsid: 32375 SI: ACIS-S (14 ksec) Target: SNR G1.9+0.3 9:49 2:48 PM Wed 03-Jun
2026:154:19:50:00Comm pass on DSS-65 (duration 1:00) 10:50 3:50 PM Wed 03-Jun
2026:154:22:47:12Load JUN0126A:CL154:2201 [2026:156:10:09:36] 13:48 6:47 PM Wed 03-Jun
2026:154:22:47:12Load JUN0126A:CL154:2201 [2026:156:10:09:36] 13:48 6:47 PM Wed 03-Jun
2026:154:22:50:12Maneuver to 234.46837 -24.50138 274.437 [2026:154:23:31:07] 13:51 6:50 PM Wed 03-Jun
2026:154:23:35:37ER Obsid: 41444 (0 ksec) Purpose: Intermediate Attitud 14:36 7:35 PM Wed 03-Jun
2026:154:23:51:18Maneuver to 150.19804 1.93850 241.000 [2026:155:00:21:29] 14:52 7:51 PM Wed 03-Jun
2026:155:00:25:59Obsid: 30263 SI: ACIS-I (30 ksec) Target: Center of COSMO 15:26 8:25 PM Wed 03-Jun
2026:155:02:25:00Comm pass on DSS-24 (duration 1:00) 17:2510:25 PM Wed 03-Jun
2026:155:08:45:59Maneuver to 241.92844 -23.94543 277.598 [2026:155:09:17:41] 23:46 4:45 AM Thu 04-Jun
2026:155:09:22:11ER Obsid: 41443 (0 ksec) Purpose: Perigee Attitude 1d 00:23 5:22 AM Thu 04-Jun
2026:155:09:37:52Maneuver to 267.18461 -27.19054 62.999 [2026:155:10:18:57] 1d 00:38 5:37 AM Thu 04-Jun
2026:155:10:23:27Obsid: 32376 SI: ACIS-S (12 ksec) Target: SNR G1.9+0.3 1d 01:24 6:23 AM Thu 04-Jun
2026:155:12:30:00Comm pass on DSS-36 (duration 1:00) 1d 03:30 8:30 AM Thu 04-Jun
2026:155:13:56:47Maneuver to 153.81962 -57.31365 239.925 [2026:155:14:33:01] 1d 04:57 9:56 AM Thu 04-Jun
2026:155:14:37:31Obsid: 30119 SI: ACIS-I (21 ksec) Target: PSR J1015-5719 1d 05:3810:37 AM Thu 04-Jun
2026:155:20:42:05Maneuver to 248.24393 -25.25018 304.539 [2026:155:21:09:01] 1d 11:43 4:42 PM Thu 04-Jun
2026:155:20:45:39Grating: HETG 1d 11:46 4:45 PM Thu 04-Jun
2026:155:20:48:05RADMON Disable 1d 11:49 4:48 PM Thu 04-Jun
2026:155:21:13:31ER Obsid: 41442 (3 ksec) Purpose: Perigee Attitude 1d 12:14 5:13 PM Thu 04-Jun
2026:155:22:03:31Maneuver to 247.70174 -20.98458 251.089 [2026:155:22:26:23] 1d 13:04 6:03 PM Thu 04-Jun
2026:155:22:30:53ER Obsid: 41441 (3 ksec) Purpose: Perigee Attitude 1d 13:31 6:30 PM Thu 04-Jun
2026:155:23:05:00Comm pass on DSS-54 (duration 1:00) 1d 14:05 7:05 PM Thu 04-Jun
2026:156:02:24:07Maneuver to 162.47679 16.79917 248.447 [2026:156:02:55:30] 1d 17:2510:24 PM Thu 04-Jun
2026:156:03:00:00ER Obsid: 41440 (3 ksec) Purpose: Perigee Attitude 1d 18:0011:00 PM Thu 04-Jun
2026:156:03:50:00Maneuver to 123.16322 14.50080 252.603 [2026:156:04:09:30] 1d 18:5011:50 PM Thu 04-Jun
2026:156:04:14:00ER Obsid: 41439 (3 ksec) Purpose: Perigee Attitude 1d 19:1412:14 AM Fri 05-Jun
2026:156:08:49:53Maneuver to 206.13059 -22.93933 261.038 [2026:156:09:20:44] 1d 23:50 4:49 AM Fri 05-Jun
2026:156:08:50:28Grating: NONE 1d 23:51 4:50 AM Fri 05-Jun
2026:156:09:11:40RADMON Enable 2d 00:12 5:11 AM Fri 05-Jun
2026:156:09:25:14Obsid: 32333 SI: ACIS-S (14 ksec) Target: LEDA 184063 2d 00:26 5:25 AM Fri 05-Jun
2026:156:11:21:18Load JUN0126A:CL156:1101 [2026:157:23:09:24] 2d 02:22 7:21 AM Fri 05-Jun
2026:156:11:21:18Load JUN0126A:CL156:1101 [2026:157:23:09:24] 2d 02:22 7:21 AM Fri 05-Jun
2026:156:12:30:00Comm pass on DSS-23 (duration 1:00) 2d 03:30 8:30 AM Fri 05-Jun
2026:156:13:18:34Maneuver to 169.59410 -32.81066 245.001 [2026:156:13:36:53] 2d 04:19 9:18 AM Fri 05-Jun
2026:156:13:41:23Obsid: 31168 SI: ACIS-S (43 ksec) Target: SN 2024ggi 2d 04:42 9:41 AM Fri 05-Jun
2026:156:16:50:00Comm pass on DSS-65 (duration 1:00) 2d 07:5012:50 PM Fri 05-Jun
2026:156:23:55:00Comm pass on DSS-65 (duration 1:00) 2d 14:55 7:55 PM Fri 05-Jun
2026:157:01:41:23Maneuver to 189.92076 -5.32056 234.001 [2026:157:02:00:44] 2d 16:42 9:41 PM Fri 05-Jun
2026:157:01:44:58Grating: HETG 2d 16:45 9:44 PM Fri 05-Jun
2026:157:02:05:14Obsid: 32243 SI: ACIS-S (10 ksec) Target: NGC 4593 2d 17:0610:05 PM Fri 05-Jun
2026:157:04:51:54Maneuver to 153.81936 -57.31526 239.925 [2026:157:05:17:16] 2d 19:5212:51 AM Sat 06-Jun
2026:157:04:55:29Grating: NONE 2d 19:5612:55 AM Sat 06-Jun
2026:157:05:23:28Obsid: 32372 SI: ACIS-I (10 ksec) Target: PSR J1015-5719 2d 20:24 1:23 AM Sat 06-Jun
2026:157:08:10:08Maneuver to 206.13249 -22.94491 260.695 [2026:157:08:32:56] 2d 23:11 4:10 AM Sat 06-Jun
2026:157:08:37:26Obsid: 32334 SI: ACIS-S (15 ksec) Target: LEDA 184063 2d 23:38 4:37 AM Sat 06-Jun

CXO and GOES rates
CXOGOESLimit
HRC shield017250
HRC MCP458930
P4GM---0.03300
P41GM---0.018.47
CXO: from snapshot at 2026:154:03:55:06 (- 5:03)
GOES proxies: scaled 15 min average of GOES-16
Last avgs at HRC: - 0:19   P4GM: - 0:21   P41GM: - 0:19
ACE rates
Value2hr limitOrbital limitHours to
Orbital limit
Current flux19.85000012000> 30
2hr avg flux18.45000012000> 30
Orbital fluence1.1x106---2.0x109---
ACE data from 2026:154:08:45:00 (- 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 426 km/s at 02/0559Z. Total IMF reached 8 nT at 01/2159Z. The maximum southward component of Bz reached -6 nT at 01/2341Z. Electrons greater than 2 MeV at geosynchronous orbit reached a peak level of 684 pfu. IIB. Geophysical Activity Forecast: The geomagnetic field is expected to be at quiet to unsettled levels on day one (03 Jun) and quiet to active levels on days two and three (04 Jun, 05 Jun).
Solar ActivityAnalysis of Solar Active Regions and Activity from 01/2100Z to 02/2100Z: Solar activity has been at moderate levels for the past 24 hours. There are currently 9 numbered sunspot regions on the disk. IB. Solar Activity Forecast: Solar activity is expected to be low with a chance for M-class flares and a slight chance for an X-class flare on days one, two, and three (03 Jun, 04 Jun, 05 Jun).

Solar X-ray Activity

Solar Wind Data ( SOHO ACE )

Solar Flare Monitor