Page content updated: 2025:261:04:34:01 ( 12:34 AM Thu 18-Sep )

Key Snapshot and SOH Values (Δt = - 0:38)
Obsid31869
Format2_NORM
RadMonENAB
CPE StatusNORM
RA1.505
Dec0.464
Roll111.530
Pitch173.25
Sim Z75624
Sim Focus-467
HETG angle77.59
LETG angle76.09
SCS 107INAC
SCS 128ACT
SCS 129ACT
SCS 130INAC
RadMonENAB
SCS 131ACT
SCS 132ACT
SCS 133INAC
Snapshot from 2025:261:03:55:29 (Δt = - 0:38)

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)
2025:260:17:45:00Comm pass on DSS-65 (duration 1:20)-10:49 1:45 PM Wed 17-Sep
2025:260:22:18:24Load SEP1525A:CL260:2201 [2025:262:08:58:58]- 6:15 6:18 PM Wed 17-Sep
2025:260:22:18:24Load SEP1525A:CL260:2201 [2025:262:08:58:58]- 6:15 6:18 PM Wed 17-Sep
2025:260:22:21:24Maneuver to 49.93625 41.55680 116.692 [2025:260:22:58:43]- 6:12 6:21 PM Wed 17-Sep
2025:260:22:24:58Grating: NONE- 6:09 6:24 PM Wed 17-Sep
2025:260:23:03:13Obsid: 29627 SI: ACIS-I (10 ksec) Target: Perseus Cluster - 5:30 7:03 PM Wed 17-Sep
2025:261:01:49:53Maneuver to 1.50346 0.46065 111.530 [2025:261:02:15:11]- 2:44 9:49 PM Wed 17-Sep
2025:261:02:19:41Obsid: 31869 SI: ACIS-S (15 ksec) Target: SDSSJ000557.23+ - 2:1410:19 PM Wed 17-Sep
2025:261:03:00:00Comm pass on DSS-24 (duration 1:00)- 1:3411:00 PM Wed 17-Sep
2025:261:04:34:01--------------- NOW --------------- 0:0012:34 AM Thu 18-Sep
2025:261:06:29:41Maneuver to 75.29337 45.26130 98.678 [2025:261:06:58:40] 1:55 2:29 AM Thu 18-Sep
2025:261:07:12:06Obsid: 29812 SI: HRC-I (12 ksec) Target: SGR 0501 2:38 3:12 AM Thu 18-Sep
2025:261:10:32:06Maneuver to 23.48603 30.65080 135.804 [2025:261:10:52:36] 5:58 6:32 AM Thu 18-Sep
2025:261:10:32:54Grating: HETG 5:58 6:32 AM Thu 18-Sep
2025:261:10:57:06Obsid: 30595 SI: ACIS-S (15 ksec) Target: M33 X-8 6:23 6:57 AM Thu 18-Sep
2025:261:15:14:25Maneuver to 356.70000 0.70000 162.923 [2025:261:15:35:09] 10:4011:14 AM Thu 18-Sep
2025:261:15:19:59RADMON Disable 10:4511:19 AM Thu 18-Sep
2025:261:15:39:39ER Obsid: 42120 (2 ksec) Purpose: Perigee Attitude 11:0511:39 AM Thu 18-Sep
2025:261:17:16:04Maneuver to 134.00000 35.00000 59.049 [2025:261:17:55:30] 12:42 1:16 PM Thu 18-Sep
2025:261:17:55:00Comm pass on DSS-54 (duration 1:00) 13:20 1:55 PM Thu 18-Sep
2025:261:18:00:00ER Obsid: 42119 (3 ksec) Purpose: Perigee Attitude 13:25 2:00 PM Thu 18-Sep
2025:261:19:15:59Maneuver to 356.70000 0.70000 166.429 [2025:261:19:55:30] 14:41 3:15 PM Thu 18-Sep
2025:261:20:00:00ER Obsid: 42118 (2 ksec) Purpose: Perigee Attitude 15:25 4:00 PM Thu 18-Sep
2025:261:22:25:10Maneuver to 77.00000 45.00000 97.720 [2025:261:22:55:30] 17:51 6:25 PM Thu 18-Sep
2025:261:23:00:00ER Obsid: 42117 (2 ksec) Purpose: Perigee Attitude 18:25 7:00 PM Thu 18-Sep
2025:261:23:50:12Maneuver to 125.00000 -1.00000 92.851 [2025:262:00:15:30] 19:16 7:50 PM Thu 18-Sep
2025:262:00:20:00ER Obsid: 42116 (2 ksec) Purpose: Perigee Attitude 19:45 8:20 PM Thu 18-Sep
2025:262:01:33:51Maneuver to 134.00000 35.00000 59.221 [2025:262:01:55:30] 20:59 9:33 PM Thu 18-Sep
2025:262:02:00:00ER Obsid: 42115 (1 ksec) Purpose: Perigee Attitude 21:2510:00 PM Thu 18-Sep
2025:262:02:30:58Maneuver to 356.70000 0.70000 167.000 [2025:262:03:10:30] 21:5610:30 PM Thu 18-Sep
2025:262:03:15:00ER Obsid: 42114 (1 ksec) Purpose: Perigee Attitude 22:4011:15 PM Thu 18-Sep
2025:262:03:15:00Comm pass on DSS-24 (duration 0:45) 22:4011:15 PM Thu 18-Sep
2025:262:03:49:27Maneuver to 356.00000 0.50000 192.346 [2025:262:04:05:30] 23:1511:49 PM Thu 18-Sep
2025:262:04:10:00ER Obsid: 42113 (1 ksec) Purpose: Perigee Attitude 23:3512:10 AM Fri 19-Sep
2025:262:04:58:31Maneuver to 205.00429 41.25451 319.023 [2025:262:05:38:40] 1d 00:2412:58 AM Fri 19-Sep
2025:262:04:59:06Grating: NONE 1d 00:2512:59 AM Fri 19-Sep
2025:262:05:25:18RADMON Enable 1d 00:51 1:25 AM Fri 19-Sep
2025:262:05:43:10Obsid: 29934 SI: ACIS-S (23 ksec) Target: SDSS J134009.43 1d 01:09 1:43 AM Fri 19-Sep
2025:262:12:03:30Load SEP1525A:CL262:1201 [2025:263:23:32:22] 1d 07:29 8:03 AM Fri 19-Sep
2025:262:12:03:30Load SEP1525A:CL262:1201 [2025:263:23:32:22] 1d 07:29 8:03 AM Fri 19-Sep
2025:262:12:06:30Maneuver to 50.02532 41.43178 117.290 [2025:262:12:38:39] 1d 07:32 8:06 AM Fri 19-Sep
2025:262:12:43:09Obsid: 29628 SI: ACIS-I (9 ksec) Target: Perseus Cluster 1d 08:09 8:43 AM Fri 19-Sep
2025:262:15:21:29Maneuver to 49.95371 41.53015 117.438 [2025:262:15:26:01] 1d 10:4711:21 AM Fri 19-Sep
2025:262:15:42:20Obsid: 29629 SI: ACIS-S (9 ksec) Target: Perseus Cluster 1d 11:0811:42 AM Fri 19-Sep
2025:262:18:20:40Maneuver to 39.97288 -1.60279 90.140 [2025:262:18:43:33] 1d 13:46 2:20 PM Fri 19-Sep
2025:262:18:48:03Obsid: 28633 SI: ACIS-I (13 ksec) Target: Abell 370 1d 14:14 2:48 PM Fri 19-Sep
2025:262:19:30:00Comm pass on DSS-65 (duration 1:00) 1d 14:55 3:30 PM Fri 19-Sep
2025:262:22:24:43Maneuver to 248.06482 -67.44030 247.996 [2025:262:23:02:22] 1d 17:50 6:24 PM Fri 19-Sep
2025:262:22:28:17Grating: HETG 1d 17:54 6:28 PM Fri 19-Sep
2025:262:23:07:08Obsid: 31873 SI: HRC-I (14 ksec) Target: 4U 1626-67 1d 18:33 7:07 PM Fri 19-Sep
2025:263:00:10:00Comm pass on DSS-54 (duration 1:00) 1d 19:35 8:10 PM Fri 19-Sep
2025:263:03:00:28Maneuver to 354.79751 -5.61729 331.026 [2025:263:03:31:43] 1d 22:2611:00 PM Fri 19-Sep
2025:263:03:01:16Grating: NONE 1d 22:2711:01 PM Fri 19-Sep
2025:263:03:36:13Obsid: 31870 SI: ACIS-S (10 ksec) Target: PSR_J2339m0533_ 1d 23:0211:36 PM Fri 19-Sep
2025:263:03:55:00Comm pass on DSS-26 (duration 1:00) 1d 23:2011:55 PM Fri 19-Sep
2025:263:06:22:53Maneuver to 267.17754 -27.14262 268.943 [2025:263:06:53:51] 2d 01:48 2:22 AM Sat 20-Sep
2025:263:06:58:21Obsid: 30136 SI: ACIS-S (25 ksec) Target: SNR G1.9+0.3 2d 02:24 2:58 AM Sat 20-Sep
2025:263:12:00:00Comm pass on DSS-54 (duration 0:50) 2d 07:25 8:00 AM Sat 20-Sep
2025:263:13:55:01Maneuver to 354.92935 -5.60704 329.307 [2025:263:14:25:54] 2d 09:21 9:55 AM Sat 20-Sep
2025:263:14:30:24Obsid: 31871 SI: ACIS-S (10 ksec) Target: PSR_J2339m0533_ 2d 09:5610:30 AM Sat 20-Sep
2025:263:17:17:04Maneuver to 201.48606 -42.95154 212.277 [2025:263:17:56:02] 2d 12:43 1:17 PM Sat 20-Sep
2025:263:17:20:00Comm pass on DSS-56 (duration 1:00) 2d 12:45 1:20 PM Sat 20-Sep
2025:263:18:00:32Obsid: 30509 SI: ACIS-I (5 ksec) Target: Centaurus A 2d 13:26 2:00 PM Sat 20-Sep
2025:263:19:23:52Maneuver to 153.48571 46.31074 32.539 [2025:263:20:14:36] 2d 14:49 3:23 PM Sat 20-Sep
2025:263:20:19:06Obsid: 31868 SI: ACIS-S (10 ksec) Target: SDSSJ101401.86+ 2d 15:45 4:19 PM Sat 20-Sep
2025:263:23:05:46Maneuver to 50.04195 41.40335 117.927 [2025:263:23:32:08] 2d 18:31 7:05 PM Sat 20-Sep
2025:263:23:36:38Obsid: 29630 SI: ACIS-S (10 ksec) Target: Perseus Cluster 2d 19:02 7:36 PM Sat 20-Sep
2025:264:00:25:00Comm pass on DSS-56 (duration 1:00) 2d 19:50 8:25 PM Sat 20-Sep
2025:264:00:25:00Load SEP1525A:CL264:0001 [2025:265:00:07:59] 2d 19:50 8:25 PM Sat 20-Sep
2025:264:00:25:00Load SEP1525A:CL264:0001 [2025:265:00:07:59] 2d 19:50 8:25 PM Sat 20-Sep
2025:264:02:23:18Maneuver to 23.48924 30.65081 137.822 [2025:264:02:39:00] 2d 21:4910:23 PM Sat 20-Sep
2025:264:02:26:52Grating: HETG 2d 21:5210:26 PM Sat 20-Sep
2025:264:02:48:48Obsid: 31874 SI: ACIS-S (14 ksec) Target: M33 X-8 2d 22:1410:48 PM Sat 20-Sep

CXO and GOES rates
CXOGOESLimit
HRC shield016250
HRC MCP458930
P4GM---0.08300
P41GM---0.008.47
CXO: from snapshot at 2025:261:03:55:29 (- 0:38)
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 flux13.45000012000> 30
2hr avg flux135000012000> 30
Orbital fluence6.6x106---2.0x109---
ACE data from 2025:261:04:20:00 (- 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 16/2100Z to 17/2100Z: The geomagnetic field has been at quiet to unsettled levels for the past 24 hours. Solar wind speed reached a peak of 872 km/s at 17/0843Z. Total IMF reached 5 nT at 17/0008Z. The maximum southward component of Bz reached -4 nT at 17/0704Z. Electrons greater than 2 MeV at geosynchronous orbit reached a peak level of 4335 pfu. IIB. Geophysical Activity Forecast: The geomagnetic field is expected to be at quiet to unsettled levels on day one (18 Sep) and quiet levels on days two and three (19 Sep, 20 Sep).
Solar ActivityAnalysis of Solar Active Regions and Activity from 16/2100Z to 17/2100Z: Solar activity has been at low levels for the past 24 hours. There are currently 6 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 (18 Sep, 19 Sep, 20 Sep).

Solar X-ray Activity

Solar Wind Data ( SOHO ACE )

Solar Flare Monitor