Page content updated: 2026:255:18:12:01 ( 2:12 PM Sat 12-Sep )

Key Snapshot and SOH Values (Δt = - 5:45)
Obsid32923
Format2_NORM
RadMonENAB
CPE StatusNORM
RA77.071
Dec27.868
Roll95.150
Pitch90.50
Sim Z75623
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 2026:255:12:26:54 (Δt = - 5:45)

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)
2026:255:09:48:09Maneuver to 16.94656 -17.53007 63.000 [2026:255:10:21:14]- 8:23 5:48 AM Sat 12-Sep
2026:255:09:51:43Grating: NONE- 8:20 5:51 AM Sat 12-Sep
2026:255:10:30:34Obsid: 32924 SI: HRC-I (5 ksec) Target: VV 114 - 7:41 6:30 AM Sat 12-Sep
2026:255:11:30:00Comm pass on DSS-65 (duration 1:00)- 6:42 7:30 AM Sat 12-Sep
2026:255:11:53:54Maneuver to 77.06793 27.87095 95.151 [2026:255:12:23:07]- 6:18 7:53 AM Sat 12-Sep
2026:255:12:27:37Obsid: 32923 SI: ACIS-S (16 ksec) Target: B2.2 0505+27 - 5:44 8:27 AM Sat 12-Sep
2026:255:16:54:17Maneuver to 302.77789 -36.08413 294.659 [2026:255:17:42:12]- 1:1712:54 PM Sat 12-Sep
2026:255:17:46:42Obsid: 31055 SI: ACIS-S (46 ksec) Target: GL 783 - 0:25 1:46 PM Sat 12-Sep
2026:255:18:12:01--------------- NOW --------------- 0:00 2:12 PM Sat 12-Sep
2026:255:20:05:00Comm pass on DSS-54 (duration 1:00) 1:52 4:05 PM Sat 12-Sep
2026:256:02:40:00Comm pass on DSS-23 (duration 1:00) 8:2710:40 PM Sat 12-Sep
2026:256:04:10:01Load SEP0726A:CL256:0401 [2026:257:02:09:17] 9:5812:10 AM Sun 13-Sep
2026:256:04:10:01Load SEP0726A:CL256:0401 [2026:257:02:09:17] 9:5812:10 AM Sun 13-Sep
2026:256:06:35:38Maneuver to 340.83200 -9.50000 298.562 [2026:256:06:56:40] 12:23 2:35 AM Sun 13-Sep
2026:256:06:39:12Grating: HETG 12:27 2:39 AM Sun 13-Sep
2026:256:06:41:15RADMON Disable 12:29 2:41 AM Sun 13-Sep
2026:256:07:01:10ER Obsid: 41149 (3 ksec) Purpose: Perigee Attitude 12:49 3:01 AM Sun 13-Sep
2026:256:07:51:10Maneuver to 219.00000 -26.60000 244.158 [2026:256:08:27:17] 13:39 3:51 AM Sun 13-Sep
2026:256:08:31:47ER Obsid: 41148 (3 ksec) Purpose: Perigee Attitude 14:19 4:31 AM Sun 13-Sep
2026:256:09:21:47Maneuver to 340.83200 -9.50000 298.445 [2026:256:09:57:55] 15:09 5:21 AM Sun 13-Sep
2026:256:10:00:00Comm pass on DSS-34 (duration 1:00) 15:47 6:00 AM Sun 13-Sep
2026:256:10:02:25ER Obsid: 41147 (8 ksec) Purpose: Perigee Attitude 15:50 6:02 AM Sun 13-Sep
2026:256:12:24:05Maneuver to 219.00000 -26.60000 244.086 [2026:256:13:00:13] 18:12 8:24 AM Sun 13-Sep
2026:256:13:04:43ER Obsid: 41146 (3 ksec) Purpose: Perigee Attitude 18:52 9:04 AM Sun 13-Sep
2026:256:16:59:22Maneuver to 340.83200 -9.50000 298.238 [2026:256:17:35:30] 22:4712:59 PM Sun 13-Sep
2026:256:17:40:00ER Obsid: 41145 (0 ksec) Purpose: Perigee Attitude 23:27 1:40 PM Sun 13-Sep
2026:256:17:55:41Maneuver to 346.20000 3.64900 215.176 [2026:256:18:25:25] 23:43 1:55 PM Sun 13-Sep
2026:256:18:29:55ER Obsid: 41144 (0 ksec) Purpose: Perigee Attitude 1d 00:17 2:29 PM Sun 13-Sep
2026:256:20:24:51Maneuver to 182.55511 56.65287 346.232 [2026:256:21:02:22] 1d 02:12 4:24 PM Sun 13-Sep
2026:256:20:25:26Grating: NONE 1d 02:13 4:25 PM Sun 13-Sep
2026:256:20:44:34RADMON Enable 1d 02:32 4:44 PM Sun 13-Sep
2026:256:21:06:52Obsid: 32931 SI: ACIS-S (10 ksec) Target: WISEA J121024.5 1d 02:54 5:06 PM Sun 13-Sep
2026:256:22:05:00Comm pass on DSS-56 (duration 1:00) 1d 03:52 6:05 PM Sun 13-Sep
2026:256:23:53:32Maneuver to 66.00000 28.00000 100.681 [2026:257:00:22:39] 1d 05:41 7:53 PM Sun 13-Sep
2026:257:00:22:39ER Obsid: 41143 (0 ksec) Purpose: Intermediate Attitud 1d 06:10 8:22 PM Sun 13-Sep
2026:257:00:23:00Maneuver to 16.94661 -17.52856 63.000 [2026:257:00:51:09] 1d 06:10 8:23 PM Sun 13-Sep
2026:257:01:02:25Obsid: 32925 SI: HRC-I (4 ksec) Target: VV 114 1d 06:50 9:02 PM Sun 13-Sep
2026:257:02:06:19Load SEP1426A:CL257:0201 [2026:258:12:57:07] 1d 07:5410:06 PM Sun 13-Sep
2026:257:02:06:19Load SEP1426A:CL257:0201 [2026:258:12:57:07] 1d 07:5410:06 PM Sun 13-Sep
2026:257:02:09:19Maneuver to 134.88138 -43.54770 127.019 [2026:257:02:42:05] 1d 07:5710:09 PM Sun 13-Sep
2026:257:02:46:35Obsid: 29742 SI: ACIS-I (8 ksec) Target: [CTC2021] Vela 1d 08:3410:46 PM Sun 13-Sep
2026:257:03:00:00Comm pass on DSS-23 (duration 1:00) 1d 08:4711:00 PM Sun 13-Sep
2026:257:05:08:15Maneuver to 1.60340 -13.44058 44.997 [2026:257:05:43:36] 1d 10:56 1:08 AM Mon 14-Sep
2026:257:05:48:06Obsid: 31130 SI: ACIS-S (10 ksec) Target: SN 2021ocs 1d 11:36 1:48 AM Mon 14-Sep
2026:257:08:34:46Maneuver to 134.88328 -43.54532 134.603 [2026:257:09:10:00] 1d 14:22 4:34 AM Mon 14-Sep
2026:257:09:14:30Obsid: 33220 SI: ACIS-I (11 ksec) Target: [CTC2021] Vela 1d 15:02 5:14 AM Mon 14-Sep
2026:257:10:00:00Comm pass on DSS-54 (duration 1:00) 1d 15:47 6:00 AM Mon 14-Sep
2026:257:12:17:50Maneuver to 1.60265 -13.44128 44.084 [2026:257:12:53:04] 1d 18:05 8:17 AM Mon 14-Sep
2026:257:12:57:34Obsid: 33230 SI: ACIS-S (10 ksec) Target: SN 2021ocs 1d 18:45 8:57 AM Mon 14-Sep
2026:257:15:44:14Maneuver to 134.88448 -43.54578 134.272 [2026:257:16:19:28] 1d 21:3211:44 AM Mon 14-Sep
2026:257:16:23:58Obsid: 33221 SI: ACIS-I (13 ksec) Target: [CTC2021] Vela 1d 22:1112:23 PM Mon 14-Sep
2026:257:20:08:58Maneuver to 340.81449 -24.41269 334.987 [2026:257:20:44:21] 2d 01:56 4:08 PM Mon 14-Sep
2026:257:20:45:00Comm pass on DSS-65 (duration 1:00) 2d 02:32 4:45 PM Mon 14-Sep
2026:257:20:48:51Obsid: 33219 SI: ACIS-S (10 ksec) Target: 2RXS J224322.5- 2d 02:36 4:48 PM Mon 14-Sep
2026:257:23:35:31Maneuver to 220.59975 -17.22419 248.000 [2026:258:00:10:58] 2d 05:23 7:35 PM Mon 14-Sep
2026:258:00:15:28Obsid: 30194 SI: ACIS-S (11 ksec) Target: NGC5728 2d 06:03 8:15 PM Mon 14-Sep
2026:258:03:18:48Maneuver to 348.13870 -8.64677 320.915 [2026:258:03:57:14] 2d 09:0611:18 PM Mon 14-Sep
2026:258:04:01:44Obsid: 33215 SI: ACIS-S (9 ksec) Target: SDSSJ231240.03- 2d 09:4912:01 AM Tue 15-Sep
2026:258:06:40:04Maneuver to 220.60023 -17.22316 247.000 [2026:258:07:18:32] 2d 12:28 2:40 AM Tue 15-Sep
2026:258:07:23:02Obsid: 33226 SI: ACIS-S (17 ksec) Target: NGC5728 2d 13:11 3:23 AM Tue 15-Sep
2026:258:09:25:00Comm pass on DSS-34 (duration 0:50) 2d 15:12 5:25 AM Tue 15-Sep
2026:258:12:06:22Maneuver to 340.66348 -0.39317 262.000 [2026:258:12:43:49] 2d 17:54 8:06 AM Tue 15-Sep
2026:258:12:48:19Obsid: 33218 SI: ACIS-S (9 ksec) Target: SDSSJ224240.98- 2d 18:36 8:48 AM Tue 15-Sep
2026:258:15:23:39Load SEP1426A:CL258:1501 [2026:260:02:44:10] 2d 21:1111:23 AM Tue 15-Sep
2026:258:15:23:39Load SEP1426A:CL258:1501 [2026:260:02:44:10] 2d 21:1111:23 AM Tue 15-Sep
2026:258:15:26:39Maneuver to 222.80733 16.45464 279.896 [2026:258:16:03:38] 2d 21:1411:26 AM Tue 15-Sep
2026:258:16:09:04Obsid: 32461 SI: HRC-I (9 ksec) Target: AT2024dky 2d 21:5712:09 PM Tue 15-Sep

CXO and GOES rates
CXOGOESLimit
HRC shield017250
HRC MCP637430
P4GM---0.03300
P41GM---0.018.47
CXO: from snapshot at 2026:255:12:26:54 (- 5:45)
GOES proxies: scaled 15 min average of GOES-16
Last avgs at HRC: - 0:17   P4GM: - 0:17   P41GM: - 0:17
ACE rates
Value2hr limitOrbital limitHours to
Orbital limit
Current flux22.15000012000> 30
2hr avg flux19.65000012000> 30
Orbital fluence2.5x106---2.0x109---
ACE data from 2026:255:17:55:00 (- 0:17)
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 10/2100Z to 11/2100Z: 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 11/0121Z. Total IMF reached NA 5 at 11/1030Z. The maximum southward component of Bz reached 4 nT at 11/1140Z. Electrons greater than 2 MeV at geosynchronous orbit reached a peak level of 7008 pfu. IIB. Geophysical Activity Forecast: The geomagnetic field is expected to be at quiet to unsettled levels on days one and two (12 Sep, 13 Sep) and unsettled to active levels on day three (14 Sep).
Solar ActivityAnalysis of Solar Active Regions and Activity from 10/2100Z to 11/2100Z: Solar activity has been at very low levels for the past 24 hours. There are currently 7 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 (12 Sep, 13 Sep, 14 Sep).

Solar X-ray Activity

Solar Wind Data ( SOHO ACE )

Solar Flare Monitor