Page content updated: 2025:358:23:24:01 ( 6:24 PM Wed 24-Dec )

Key Snapshot and SOH Values (Δt = -10:13)
Obsid29657
Format2_NORM
RadMonENAB
CPE StatusNORM
RA188.621
Dec2.180
Roll54.000
Pitch85.24
Sim Z75624
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 2025:358:13:10:48 (Δt = -10:13)

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)
2025:358:12:07:37Maneuver to 188.61968 2.17676 54.000 [2025:358:12:38:24]-11:16 7:07 AM Wed 24-Dec
2025:358:12:15:00Comm pass on DSS-65 (duration 1:00)-11:09 7:15 AM Wed 24-Dec
2025:358:12:42:54Obsid: 29657 SI: ACIS-S (33 ksec) Target: NGC4536 -10:41 7:42 AM Wed 24-Dec
2025:358:21:52:54Maneuver to 166.11569 38.15910 80.565 [2025:358:22:13:58]- 1:31 4:52 PM Wed 24-Dec
2025:358:21:56:28Grating: LETG- 1:27 4:56 PM Wed 24-Dec
2025:358:22:18:28Obsid: 31397 SI: ACIS-S (51 ksec) Target: MKN421 - 1:05 5:18 PM Wed 24-Dec
2025:358:23:24:01--------------- NOW --------------- 0:00 6:24 PM Wed 24-Dec
2025:359:03:10:00Comm pass on DSS-36 (duration 1:00) 3:4510:10 PM Wed 24-Dec
2025:359:03:10:00Load DEC2225A:CL359:0301 [2025:360:14:30:02] 3:4510:10 PM Wed 24-Dec
2025:359:03:10:00Load DEC2225A:CL359:0301 [2025:360:14:30:02] 3:4510:10 PM Wed 24-Dec
2025:359:12:38:39Maneuver to 101.06205 27.05653 118.017 [2025:359:13:01:49] 13:14 7:38 AM Thu 25-Dec
2025:359:12:42:13Grating: NONE 13:18 7:42 AM Thu 25-Dec
2025:359:12:44:11RADMON Disable 13:20 7:44 AM Thu 25-Dec
2025:359:12:46:34Grating: HETG 13:22 7:46 AM Thu 25-Dec
2025:359:13:06:19ER Obsid: 41853 (3 ksec) Purpose: Perigee Attitude 13:42 8:06 AM Thu 25-Dec
2025:359:13:45:00Comm pass on DSS-65 (duration 1:00) 14:20 8:45 AM Thu 25-Dec
2025:359:15:10:26Maneuver to 218.90000 -12.90000 70.288 [2025:359:15:48:29] 15:4610:10 AM Thu 25-Dec
2025:359:15:52:59ER Obsid: 41852 (3 ksec) Purpose: Perigee Attitude 16:2810:52 AM Thu 25-Dec
2025:359:19:20:45Maneuver to 110.60000 -7.20000 27.118 [2025:359:19:55:30] 19:56 2:20 PM Thu 25-Dec
2025:359:20:00:00ER Obsid: 41851 (2 ksec) Purpose: Perigee Attitude 20:35 3:00 PM Thu 25-Dec
2025:359:20:33:20Maneuver to 98.09816 18.50140 35.259 [2025:359:20:50:30] 21:09 3:33 PM Thu 25-Dec
2025:359:20:55:00ER Obsid: 41850 (3 ksec) Purpose: Perigee Attitude 21:30 3:55 PM Thu 25-Dec
2025:359:22:16:43Maneuver to 226.99496 -60.11367 116.744 [2025:359:22:55:30] 22:52 5:16 PM Thu 25-Dec
2025:359:23:00:00ER Obsid: 41849 (3 ksec) Purpose: Perigee Attitude 23:35 6:00 PM Thu 25-Dec
2025:360:00:31:15Maneuver to 189.43046 11.79227 66.130 [2025:360:01:00:41] 1d 01:07 7:31 PM Thu 25-Dec
2025:360:00:40:10RADMON Enable 1d 01:16 7:40 PM Thu 25-Dec
2025:360:01:05:11Obsid: 31488 SI: ACIS-S (15 ksec) Target: NGC 4579 1d 01:41 8:05 PM Thu 25-Dec
2025:360:03:30:00Comm pass on DSS-65 (duration 1:00) 1d 04:0510:30 PM Thu 25-Dec
2025:360:05:15:11Maneuver to 135.51199 -40.57618 38.490 [2025:360:05:42:25] 1d 05:5112:15 AM Fri 26-Dec
2025:360:05:46:55Obsid: 30499 SI: ACIS-S (15 ksec) Target: Vela X-1 1d 06:2212:46 AM Fri 26-Dec
2025:360:09:56:55Maneuver to 104.93489 14.34151 44.672 [2025:360:10:21:58] 1d 10:32 4:56 AM Fri 26-Dec
2025:360:10:00:29Grating: NONE 1d 10:36 5:00 AM Fri 26-Dec
2025:360:10:26:28Obsid: 32063 SI: ACIS-S (10 ksec) Target: PSRB0656p14_s2 1d 11:02 5:26 AM Fri 26-Dec
2025:360:13:00:00Comm pass on DSS-24 (duration 1:00) 1d 13:35 8:00 AM Fri 26-Dec
2025:360:13:13:08Maneuver to 220.60157 -17.27750 73.528 [2025:360:13:50:46] 1d 13:49 8:13 AM Fri 26-Dec
2025:360:13:55:16Obsid: 32071 SI: ACIS-S (13 ksec) Target: NGC5728 1d 14:31 8:55 AM Fri 26-Dec
2025:360:15:27:38Load DEC2225A:CL360:1501 [2025:362:03:11:45] 1d 16:0310:27 AM Fri 26-Dec
2025:360:15:27:38Load DEC2225A:CL360:1501 [2025:362:03:11:45] 1d 16:0310:27 AM Fri 26-Dec
2025:360:17:34:26Maneuver to 166.11589 38.16202 81.743 [2025:360:18:02:12] 1d 18:1012:34 PM Fri 26-Dec
2025:360:17:38:00Grating: LETG 1d 18:1312:38 PM Fri 26-Dec
2025:360:18:06:42Obsid: 31730 SI: ACIS-S (35 ksec) Target: MKN421 1d 18:42 1:06 PM Fri 26-Dec
2025:360:23:30:00Comm pass on DSS-24 (duration 1:00) 2d 00:05 6:30 PM Fri 26-Dec
2025:361:04:00:12Maneuver to 4.80333 59.15789 283.300 [2025:361:04:31:32] 2d 04:3611:00 PM Fri 26-Dec
2025:361:04:03:46Grating: NONE 2d 04:3911:03 PM Fri 26-Dec
2025:361:04:08:07Grating: HETG 2d 04:4411:08 PM Fri 26-Dec
2025:361:04:37:20Obsid: 32067 SI: ACIS-S (10 ksec) Target: TV Cassiopeia 2d 05:1311:37 PM Fri 26-Dec
2025:361:07:24:00Maneuver to 97.63556 39.51454 182.990 [2025:361:07:48:46] 2d 07:59 2:24 AM Sat 27-Dec
2025:361:07:27:34Grating: NONE 2d 08:03 2:27 AM Sat 27-Dec
2025:361:07:54:45Obsid: 32065 SI: ACIS-I (10 ksec) Target: UGC 03475 2d 08:30 2:54 AM Sat 27-Dec
2025:361:10:41:25Maneuver to 329.65353 29.99695 306.011 [2025:361:11:14:06] 2d 11:17 5:41 AM Sat 27-Dec
2025:361:11:18:36Obsid: 32064 SI: ACIS-S (14 ksec) Target: B2.1 2156+29 2d 11:54 6:18 AM Sat 27-Dec
2025:361:13:25:00Comm pass on DSS-26 (duration 1:00) 2d 14:00 8:25 AM Sat 27-Dec
2025:361:15:25:16Maneuver to 26.74288 28.47388 282.802 [2025:361:15:47:19] 2d 16:0110:25 AM Sat 27-Dec
2025:361:15:47:19ER Obsid: 41848 (0 ksec) Purpose: Intermediate Attitud 2d 16:2310:47 AM Sat 27-Dec
2025:361:15:47:40Maneuver to 94.25244 22.37268 297.536 [2025:361:16:15:21] 2d 16:2310:47 AM Sat 27-Dec
2025:361:16:19:51Obsid: 32074 SI: ACIS-S (12 ksec) Target: IC 443 2d 16:5511:19 AM Sat 27-Dec
2025:361:18:55:00Comm pass on DSS-26 (duration 1:00) 2d 19:30 1:55 PM Sat 27-Dec
2025:361:19:49:51Maneuver to 335.82227 -52.46399 260.631 [2025:361:20:28:47] 2d 20:25 2:49 PM Sat 27-Dec
2025:361:20:33:17Obsid: 32066 SI: ACIS-I (13 ksec) Target: CLJ222321.8-522 2d 21:09 3:33 PM Sat 27-Dec

CXO and GOES rates
CXOGOESLimit
HRC shield016250
HRC MCP637430
P4GM---0.04300
P41GM---0.018.47
CXO: from snapshot at 2025:358:13:10:48 (-10:13)
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 flux1765000012000> 30
2hr avg flux1645000012000> 30
Orbital fluence9.3x105---2.0x109---
ACE data from 2025:358:23:00:00 (- 0:24)
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 23/2100Z to 24/2100Z: The geomagnetic field has been at unsettled to active levels for the past 24 hours. Solar wind speed reached a peak of 784 km/s at 24/1107Z. Total IMF reached 7 nT at 23/2209Z. The maximum southward component of Bz reached -6 nT at 24/0705Z. Electrons greater than 2 MeV at geosynchronous orbit reached a peak level of 7350 pfu. IIB. Geophysical Activity Forecast: The geomagnetic field is expected to be at quiet to active levels on day one (25 Dec), quiet to unsettled levels on day two (26 Dec) and quiet levels on day three (27 Dec).
Solar ActivityAnalysis of Solar Active Regions and Activity from 23/2100Z to 24/2100Z: 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 (25 Dec, 26 Dec, 27 Dec).

Solar X-ray Activity

Solar Wind Data ( SOHO ACE )

Solar Flare Monitor