Replan Central

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

Support (GMT)	BOT	EOT	Station	Site	Track time (local)	Dur
238/1945-2145	2030	2130	DSS-54	MADRID	Wed Aug 26 04:30 PM EDT	1:00
239/1125-1325	1210	1310	DSS-54	MADRID	Thu Aug 27 08:10 AM EDT	1:00

Chandra Events (Load link unavailable)
`Time (UT)`	Event	`Delta time`	`Time (Eastern)`
`2026:237:15:15:00`	Comm pass on DSS-53 (duration 1:00)	`-11:47`	`11:15 AM Tue 25-Aug`
`2026:237:15:40:00`	Obsid: 32496 SI: HRC-S (1 ksec) Target: RT Cru	`-11:22`	`11:40 AM Tue 25-Aug`
`2026:237:15:56:40`	Maneuver to 188.29526 -64.62044 214.187 [2026:237:16:00:40]	`-11:05`	`11:56 AM Tue 25-Aug`
`2026:237:16:05:10`	ER Obsid: 41201 (0 ksec) Purpose: Intermediate Attitud	`-10:57`	`12:05 PM Tue 25-Aug`
`2026:237:16:20:51`	Maneuver to 267.17776 -27.14472 270.668 [2026:237:16:45:28]	`-10:41`	`12:20 PM Tue 25-Aug`
`2026:237:16:49:58`	Obsid: 30128 SI: ACIS-S (14 ksec) Target: SNR G1.9+0.3	`-10:12`	`12:49 PM Tue 25-Aug`
`2026:237:20:51:20`	Maneuver to 332.13944 -11.05446 280.849 [2026:237:21:16:34]	`- 6:11`	`4:51 PM Tue 25-Aug`
`2026:237:20:54:54`	Grating: HETG	`- 6:07`	`4:54 PM Tue 25-Aug`
`2026:237:20:56:57`	RADMON Disable	`- 6:05`	`4:56 PM Tue 25-Aug`
`2026:237:21:21:04`	ER Obsid: 41200 (3 ksec) Purpose: Perigee Attitude	`- 5:41`	`5:21 PM Tue 25-Aug`
`2026:237:23:35:00`	Comm pass on DSS-56 (duration 1:00)	`- 3:27`	`7:35 PM Tue 25-Aug`
`2026:238:01:21:28`	Maneuver to 220.64918 -32.97604 247.621 [2026:238:01:55:30]	`- 1:40`	`9:21 PM Tue 25-Aug`
`2026:238:02:00:00`	ER Obsid: 41199 (3 ksec) Purpose: Perigee Attitude	`- 1:02`	`10:00 PM Tue 25-Aug`
`2026:238:03:02:24`	--------------- NOW ---------------	`0:00`	`11:02 PM Tue 25-Aug`
`2026:238:06:01:12`	Maneuver to 333.71409 -15.79212 350.097 [2026:238:06:35:30]	`2:58`	`2:01 AM Wed 26-Aug`
`2026:238:06:40:00`	ER Obsid: 41198 (0 ksec) Purpose: Perigee Attitude	`3:37`	`2:40 AM Wed 26-Aug`
`2026:238:08:52:34`	Maneuver to 134.88115 -43.53722 156.493 [2026:238:09:30:07]	`5:50`	`4:52 AM Wed 26-Aug`
`2026:238:08:53:08`	Grating: NONE	`5:50`	`4:53 AM Wed 26-Aug`
`2026:238:09:09:36`	RADMON Enable	`6:07`	`5:09 AM Wed 26-Aug`
`2026:238:09:34:37`	Obsid: 30095 SI: ACIS-I (13 ksec) Target: [CTC2021] Vela	`6:32`	`5:34 AM Wed 26-Aug`
`2026:238:11:20:00`	Comm pass on DSS-53 (duration 0:40)	`8:17`	`7:20 AM Wed 26-Aug`
`2026:238:13:19:57`	Maneuver to 349.43918 -36.81991 30.057 [2026:238:13:51:47]	`10:17`	`9:19 AM Wed 26-Aug`
`2026:238:13:56:17`	Obsid: 30034 SI: ACIS-S (11 ksec) Target: ACT-CL J2317.7-	`10:53`	`9:56 AM Wed 26-Aug`
`2026:238:17:02:57`	Maneuver to 40.66066 -21.56550 91.112 [2026:238:17:26:42]	`14:00`	`1:02 PM Wed 26-Aug`
`2026:238:17:31:12`	Obsid: 30407 SI: ACIS-S (9 ksec) Target: ClG J0242-2132	`14:28`	`1:31 PM Wed 26-Aug`
`2026:238:20:12:35`	Maneuver to 344.91100 24.92226 163.717 [2026:238:20:45:08]	`17:10`	`4:12 PM Wed 26-Aug`
`2026:238:20:30:00`	Comm pass on DSS-54 (duration 1:00)	`17:27`	`4:30 PM Wed 26-Aug`
`2026:238:20:55:00`	Obsid: 32497 SI: HRC-S (1 ksec) Target: 2CXO J225932.9+	`17:52`	`4:55 PM Wed 26-Aug`
`2026:238:21:11:40`	Maneuver to 344.77278 24.49030 163.801 [2026:238:21:15:40]	`18:09`	`5:11 PM Wed 26-Aug`
`2026:238:21:20:10`	ER Obsid: 41197 (0 ksec) Purpose: Intermediate Attitud	`18:17`	`5:20 PM Wed 26-Aug`
`2026:238:21:35:51`	Maneuver to 40.65928 -21.56301 90.975 [2026:238:22:08:26]	`18:33`	`5:35 PM Wed 26-Aug`
`2026:238:22:12:56`	Obsid: 30409 SI: ACIS-S (68 ksec) Target: ClG J0242-2132	`19:10`	`6:12 PM Wed 26-Aug`
`2026:238:23:54:19`	Load AUG2426A:CL238:2301 [2026:240:11:30:02]	`20:51`	`7:54 PM Wed 26-Aug`
`2026:238:23:54:19`	Load AUG2426A:CL238:2301 [2026:240:11:30:02]	`20:51`	`7:54 PM Wed 26-Aug`
`2026:239:03:00:00`	Comm pass on DSS-23 (duration 1:00)	`23:57`	`11:00 PM Wed 26-Aug`
`2026:239:12:10:00`	Comm pass on DSS-54 (duration 1:00)	`1d 09:07`	`8:10 AM Thu 27-Aug`
`2026:239:17:11:59`	Maneuver to 342.53543 -9.90006 91.210 [2026:239:17:36:09]	`1d 14:09`	`1:11 PM Thu 27-Aug`
`2026:239:17:40:39`	ER Obsid: 41196 (0 ksec) Purpose: Intermediate Attitud	`1d 14:38`	`1:40 PM Thu 27-Aug`
`2026:239:17:56:20`	Maneuver to 35.61849 -8.96936 96.265 [2026:239:18:19:00]	`1d 14:53`	`1:56 PM Thu 27-Aug`
`2026:239:18:23:30`	Obsid: 31998 SI: ACIS-S (12 ksec) Target: SDSS J022226.11	`1d 15:21`	`2:23 PM Thu 27-Aug`
`2026:239:21:46:50`	Maneuver to 65.06417 19.22083 99.708 [2026:239:22:06:56]	`1d 18:44`	`5:46 PM Thu 27-Aug`
`2026:239:22:31:14`	Obsid: 31061 SI: HRC-I (5 ksec) Target: HD 27406	`1d 19:28`	`6:31 PM Thu 27-Aug`
`2026:239:23:54:34`	Maneuver to 341.54588 -5.45835 113.001 [2026:240:00:24:37]	`1d 20:52`	`7:54 PM Thu 27-Aug`
`2026:240:00:29:07`	Obsid: 32516 SI: ACIS-S (15 ksec) Target: WISE J2246-0526	`1d 21:26`	`8:29 PM Thu 27-Aug`
`2026:240:02:40:00`	Comm pass on DSS-23 (duration 1:00)	`1d 23:37`	`10:40 PM Thu 27-Aug`
`2026:240:04:39:07`	Maneuver to 26.71456 48.43542 127.590 [2026:240:05:06:34]	`2d 01:36`	`12:39 AM Fri 28-Aug`
`2026:240:05:11:04`	Obsid: 32510 SI: ACIS-S (22 ksec) Target: MASTER J0146+48	`2d 02:08`	`1:11 AM Fri 28-Aug`
`2026:240:10:00:00`	Comm pass on DSS-36 (duration 1:00)	`2d 06:57`	`6:00 AM Fri 28-Aug`
`2026:240:11:30:43`	Load AUG2426A:CL240:1101 [2026:241:22:33:39]	`2d 08:28`	`7:30 AM Fri 28-Aug`
`2026:240:11:30:43`	Load AUG2426A:CL240:1101 [2026:241:22:33:39]	`2d 08:28`	`7:30 AM Fri 28-Aug`
`2026:240:11:33:43`	Maneuver to 341.10950 -6.62394 125.532 [2026:240:12:00:28]	`2d 08:31`	`7:33 AM Fri 28-Aug`
`2026:240:11:37:18`	Grating: HETG	`2d 08:34`	`7:37 AM Fri 28-Aug`
`2026:240:11:39:21`	RADMON Disable	`2d 08:36`	`7:39 AM Fri 28-Aug`
`2026:240:12:04:58`	ER Obsid: 41195 (0 ksec) Purpose: Perigee Attitude	`2d 09:02`	`8:04 AM Fri 28-Aug`
`2026:240:12:20:39`	Maneuver to 114.07829 42.61688 61.210 [2026:240:12:59:32]	`2d 09:18`	`8:20 AM Fri 28-Aug`
`2026:240:13:04:02`	ER Obsid: 41194 (3 ksec) Purpose: Perigee Attitude	`2d 10:01`	`9:04 AM Fri 28-Aug`
`2026:240:13:54:02`	Maneuver to 339.24736 -3.55599 158.300 [2026:240:14:32:43]	`2d 10:51`	`9:54 AM Fri 28-Aug`
`2026:240:14:37:13`	ER Obsid: 41193 (0 ksec) Purpose: Perigee Attitude	`2d 11:34`	`10:37 AM Fri 28-Aug`
`2026:240:14:52:54`	Maneuver to 332.38405 -10.98482 286.197 [2026:240:15:32:34]	`2d 11:50`	`10:52 AM Fri 28-Aug`
`2026:240:15:37:04`	ER Obsid: 41192 (3 ksec) Purpose: Perigee Attitude	`2d 12:34`	`11:37 AM Fri 28-Aug`
`2026:240:16:42:39`	Maneuver to 225.60000 -36.40000 249.280 [2026:240:17:15:30]	`2d 13:40`	`12:42 PM Fri 28-Aug`
`2026:240:17:20:00`	ER Obsid: 41191 (3 ksec) Purpose: Perigee Attitude	`2d 14:17`	`1:20 PM Fri 28-Aug`
`2026:240:18:25:00`	Comm pass on DSS-36 (duration 1:00)	`2d 15:22`	`2:25 PM Fri 28-Aug`
`2026:240:21:47:39`	Maneuver to 332.38405 -10.98482 286.586 [2026:240:22:20:30]	`2d 18:45`	`5:47 PM Fri 28-Aug`
`2026:240:22:25:00`	ER Obsid: 41190 (0 ksec) Purpose: Perigee Attitude	`2d 19:22`	`6:25 PM Fri 28-Aug`
`2026:240:23:43:24`	Maneuver to 220.59956 -17.22891 249.000 [2026:241:00:18:10]	`2d 20:41`	`7:43 PM Fri 28-Aug`
`2026:240:23:43:58`	Grating: NONE	`2d 20:41`	`7:43 PM Fri 28-Aug`
`2026:241:00:04:48`	RADMON Enable	`2d 21:02`	`8:04 PM Fri 28-Aug`
`2026:241:00:22:40`	Obsid: 30203 SI: ACIS-S (16 ksec) Target: NGC5728	`2d 21:20`	`8:22 PM Fri 28-Aug`
`2026:241:01:00:00`	Comm pass on DSS-23 (duration 1:00)	`2d 21:57`	`9:00 PM Fri 28-Aug`

Chandra Events (Load link unavailable)

Time (UT)

Event

Delta time

Time (Eastern)

2026:237:15:15:00

Comm pass on DSS-53 (duration 1:00)

-11:47

11:15 AM Tue 25-Aug

2026:237:15:40:00

Obsid: 32496 SI: HRC-S (1 ksec) Target: RT Cru

-11:22

11:40 AM Tue 25-Aug

2026:237:15:56:40

Maneuver to 188.29526 -64.62044 214.187 [2026:237:16:00:40]

-11:05

11:56 AM Tue 25-Aug

2026:237:16:05:10

ER Obsid: 41201 (0 ksec) Purpose: Intermediate Attitud

-10:57

12:05 PM Tue 25-Aug

2026:237:16:20:51

Maneuver to 267.17776 -27.14472 270.668 [2026:237:16:45:28]

-10:41

12:20 PM Tue 25-Aug

2026:237:16:49:58

Obsid: 30128 SI: ACIS-S (14 ksec) Target: SNR G1.9+0.3

-10:12

12:49 PM Tue 25-Aug

2026:237:20:51:20

Maneuver to 332.13944 -11.05446 280.849 [2026:237:21:16:34]

- 6:11

4:51 PM Tue 25-Aug

2026:237:20:54:54

Grating: HETG

- 6:07

4:54 PM Tue 25-Aug

2026:237:20:56:57

RADMON Disable

- 6:05

4:56 PM Tue 25-Aug

2026:237:21:21:04

ER Obsid: 41200 (3 ksec) Purpose: Perigee Attitude

- 5:41

5:21 PM Tue 25-Aug

2026:237:23:35:00

Comm pass on DSS-56 (duration 1:00)

- 3:27

7:35 PM Tue 25-Aug

2026:238:01:21:28

Maneuver to 220.64918 -32.97604 247.621 [2026:238:01:55:30]

- 1:40

9:21 PM Tue 25-Aug

2026:238:02:00:00

ER Obsid: 41199 (3 ksec) Purpose: Perigee Attitude

- 1:02

10:00 PM Tue 25-Aug

2026:238:03:02:24

--------------- NOW ---------------

0:00

11:02 PM Tue 25-Aug

2026:238:06:01:12

Maneuver to 333.71409 -15.79212 350.097 [2026:238:06:35:30]

2:58

2:01 AM Wed 26-Aug

2026:238:06:40:00

ER Obsid: 41198 (0 ksec) Purpose: Perigee Attitude

3:37

2:40 AM Wed 26-Aug

2026:238:08:52:34

Maneuver to 134.88115 -43.53722 156.493 [2026:238:09:30:07]

5:50

4:52 AM Wed 26-Aug

2026:238:08:53:08

Grating: NONE

5:50

4:53 AM Wed 26-Aug

2026:238:09:09:36

RADMON Enable

6:07

5:09 AM Wed 26-Aug

2026:238:09:34:37

Obsid: 30095 SI: ACIS-I (13 ksec) Target: [CTC2021] Vela

6:32

5:34 AM Wed 26-Aug

2026:238:11:20:00

Comm pass on DSS-53 (duration 0:40)

8:17

7:20 AM Wed 26-Aug

2026:238:13:19:57

Maneuver to 349.43918 -36.81991 30.057 [2026:238:13:51:47]

10:17

9:19 AM Wed 26-Aug

2026:238:13:56:17

Obsid: 30034 SI: ACIS-S (11 ksec) Target: ACT-CL J2317.7-

10:53

9:56 AM Wed 26-Aug

2026:238:17:02:57

Maneuver to 40.66066 -21.56550 91.112 [2026:238:17:26:42]

14:00

1:02 PM Wed 26-Aug

2026:238:17:31:12

Obsid: 30407 SI: ACIS-S (9 ksec) Target: ClG J0242-2132

14:28

1:31 PM Wed 26-Aug

2026:238:20:12:35

Maneuver to 344.91100 24.92226 163.717 [2026:238:20:45:08]

17:10

4:12 PM Wed 26-Aug

2026:238:20:30:00

Comm pass on DSS-54 (duration 1:00)

17:27

4:30 PM Wed 26-Aug

2026:238:20:55:00

Obsid: 32497 SI: HRC-S (1 ksec) Target: 2CXO J225932.9+

17:52

4:55 PM Wed 26-Aug

2026:238:21:11:40

Maneuver to 344.77278 24.49030 163.801 [2026:238:21:15:40]

18:09

5:11 PM Wed 26-Aug

2026:238:21:20:10

ER Obsid: 41197 (0 ksec) Purpose: Intermediate Attitud

18:17

5:20 PM Wed 26-Aug

2026:238:21:35:51

Maneuver to 40.65928 -21.56301 90.975 [2026:238:22:08:26]

18:33

5:35 PM Wed 26-Aug

2026:238:22:12:56

Obsid: 30409 SI: ACIS-S (68 ksec) Target: ClG J0242-2132

19:10

6:12 PM Wed 26-Aug

2026:238:23:54:19

Load AUG2426A:CL238:2301 [2026:240:11:30:02]

20:51

7:54 PM Wed 26-Aug

2026:238:23:54:19

Load AUG2426A:CL238:2301 [2026:240:11:30:02]

20:51

7:54 PM Wed 26-Aug

2026:239:03:00:00

Comm pass on DSS-23 (duration 1:00)

23:57

11:00 PM Wed 26-Aug

2026:239:12:10:00

Comm pass on DSS-54 (duration 1:00)

1d 09:07

8:10 AM Thu 27-Aug

2026:239:17:11:59

Maneuver to 342.53543 -9.90006 91.210 [2026:239:17:36:09]

1d 14:09

1:11 PM Thu 27-Aug

2026:239:17:40:39

ER Obsid: 41196 (0 ksec) Purpose: Intermediate Attitud

1d 14:38

1:40 PM Thu 27-Aug

2026:239:17:56:20

Maneuver to 35.61849 -8.96936 96.265 [2026:239:18:19:00]

1d 14:53

1:56 PM Thu 27-Aug

2026:239:18:23:30

Obsid: 31998 SI: ACIS-S (12 ksec) Target: SDSS J022226.11

1d 15:21

2:23 PM Thu 27-Aug

2026:239:21:46:50

Maneuver to 65.06417 19.22083 99.708 [2026:239:22:06:56]

1d 18:44

5:46 PM Thu 27-Aug

2026:239:22:31:14

Obsid: 31061 SI: HRC-I (5 ksec) Target: HD 27406

1d 19:28

6:31 PM Thu 27-Aug

2026:239:23:54:34

Maneuver to 341.54588 -5.45835 113.001 [2026:240:00:24:37]

1d 20:52

7:54 PM Thu 27-Aug

2026:240:00:29:07

Obsid: 32516 SI: ACIS-S (15 ksec) Target: WISE J2246-0526

1d 21:26

8:29 PM Thu 27-Aug

2026:240:02:40:00

Comm pass on DSS-23 (duration 1:00)

1d 23:37

10:40 PM Thu 27-Aug

2026:240:04:39:07

Maneuver to 26.71456 48.43542 127.590 [2026:240:05:06:34]

2d 01:36

12:39 AM Fri 28-Aug

2026:240:05:11:04

Obsid: 32510 SI: ACIS-S (22 ksec) Target: MASTER J0146+48

2d 02:08

1:11 AM Fri 28-Aug

2026:240:10:00:00

Comm pass on DSS-36 (duration 1:00)

2d 06:57

6:00 AM Fri 28-Aug

2026:240:11:30:43

Load AUG2426A:CL240:1101 [2026:241:22:33:39]

2d 08:28

7:30 AM Fri 28-Aug

2026:240:11:30:43

Load AUG2426A:CL240:1101 [2026:241:22:33:39]

2d 08:28

7:30 AM Fri 28-Aug

2026:240:11:33:43

Maneuver to 341.10950 -6.62394 125.532 [2026:240:12:00:28]

2d 08:31

7:33 AM Fri 28-Aug

2026:240:11:37:18

Grating: HETG

2d 08:34

7:37 AM Fri 28-Aug

2026:240:11:39:21

RADMON Disable

2d 08:36

7:39 AM Fri 28-Aug

2026:240:12:04:58

ER Obsid: 41195 (0 ksec) Purpose: Perigee Attitude

2d 09:02

8:04 AM Fri 28-Aug

2026:240:12:20:39

Maneuver to 114.07829 42.61688 61.210 [2026:240:12:59:32]

2d 09:18

8:20 AM Fri 28-Aug

2026:240:13:04:02

ER Obsid: 41194 (3 ksec) Purpose: Perigee Attitude

2d 10:01

9:04 AM Fri 28-Aug

2026:240:13:54:02

Maneuver to 339.24736 -3.55599 158.300 [2026:240:14:32:43]

2d 10:51

9:54 AM Fri 28-Aug

2026:240:14:37:13

ER Obsid: 41193 (0 ksec) Purpose: Perigee Attitude

2d 11:34

10:37 AM Fri 28-Aug

2026:240:14:52:54

Maneuver to 332.38405 -10.98482 286.197 [2026:240:15:32:34]

2d 11:50

10:52 AM Fri 28-Aug

2026:240:15:37:04

ER Obsid: 41192 (3 ksec) Purpose: Perigee Attitude

2d 12:34

11:37 AM Fri 28-Aug

2026:240:16:42:39

Maneuver to 225.60000 -36.40000 249.280 [2026:240:17:15:30]

2d 13:40

12:42 PM Fri 28-Aug

2026:240:17:20:00

ER Obsid: 41191 (3 ksec) Purpose: Perigee Attitude

2d 14:17

1:20 PM Fri 28-Aug

2026:240:18:25:00

Comm pass on DSS-36 (duration 1:00)

2d 15:22

2:25 PM Fri 28-Aug

2026:240:21:47:39

Maneuver to 332.38405 -10.98482 286.586 [2026:240:22:20:30]

2d 18:45

5:47 PM Fri 28-Aug

2026:240:22:25:00

ER Obsid: 41190 (0 ksec) Purpose: Perigee Attitude

2d 19:22

6:25 PM Fri 28-Aug

2026:240:23:43:24

Maneuver to 220.59956 -17.22891 249.000 [2026:241:00:18:10]

2d 20:41

7:43 PM Fri 28-Aug

2026:240:23:43:58

Grating: NONE

2d 20:41

7:43 PM Fri 28-Aug

2026:241:00:04:48

RADMON Enable

2d 21:02

8:04 PM Fri 28-Aug

2026:241:00:22:40

Obsid: 30203 SI: ACIS-S (16 ksec) Target: NGC5728

2d 21:20

8:22 PM Fri 28-Aug

2026:241:01:00:00

Comm pass on DSS-23 (duration 1:00)

2d 21:57

9:00 PM Fri 28-Aug

CXO and GOES rates

CXO

GOES

Limit

HRC shield

250

HRC MCP

6374

P4GM

---

0.25

300

P41GM

---

0.01

8.47

CXO: from snapshot at 2026:238:00:32:07 (- 2:30)
RadMon: DISABLED
GOES proxies: scaled 15 min average of GOES-16
Last avgs at HRC: - 0:17 P4GM: - 0:17 P41GM: - 0:17

ACE rates

Value

2hr limit

Orbital limit

Hours to
Orbital limit

Current flux

50000

12000

> 30

2hr avg flux

44.6

50000

12000

> 30

Orbital fluence

3.0x10⁷

---

2.0x10⁹

---

ACE data from 2026:238:02:50:00 (- 0:12)
Orbital fluence: integrated attenuated ACE flux
Grating attenuation not factored into current or 2hr flux numbers
RADMON and SOT alert limits information

3-day Solar-Geophysical Forecast
Geophysical Activity	Geophysical Activity Summary 24/2100Z to 25/2100Z: The geomagnetic field has been at quiet to unsettled levels for the past 24 hours. Solar wind speed reached a peak of 356 km/s at 24/2200z. Total IMF reached 7 nT at 24/2200z. The maximum southward component of Bz reached -1 nT at 25/1451z. Protons greater than 10 MeV at geosynchronous orbit reached a peak level of 3 pfu at 25/0420Z. Electrons greater than 2 MeV at geosynchronous orbit reached a peak level of 1607 pfu at 25/1705z. IIB. Geophysical Activity Forecast: The geomagnetic field is expected to be at quiet levels on day one (26 Aug), unsettled to minor storm levels on day two (27 Aug) and active to major storm levels on day three (28 Aug). Protons have a slight chance of crossing threshold on days one, two, and three (26 Aug, 27 Aug, 28 Aug).
Solar Activity	Analysis of Solar Active Regions and Activity from 24/2100Z to 25/2100Z: Solar activity has been at high levels for the past 24 hours. There are currently 4 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 (26 Aug, 27 Aug, 28 Aug).

3-day Solar-Geophysical Forecast

Geophysical Activity

Geophysical Activity Summary 24/2100Z to 25/2100Z: The geomagnetic field has been at quiet to unsettled levels for the past 24 hours. Solar wind speed reached a peak of 356 km/s at 24/2200z. Total IMF reached 7 nT at 24/2200z. The maximum southward component of Bz reached -1 nT at 25/1451z. Protons greater than 10 MeV at geosynchronous orbit reached a peak level of 3 pfu at 25/0420Z. Electrons greater than 2 MeV at geosynchronous orbit reached a peak level of 1607 pfu at 25/1705z. IIB. Geophysical Activity Forecast: The geomagnetic field is expected to be at quiet levels on day one (26 Aug), unsettled to minor storm levels on day two (27 Aug) and active to major storm levels on day three (28 Aug). Protons have a slight chance of crossing threshold on days one, two, and three (26 Aug, 27 Aug, 28 Aug).

Solar Activity

Analysis of Solar Active Regions and Activity from 24/2100Z to 25/2100Z: Solar activity has been at high levels for the past 24 hours. There are currently 4 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 (26 Aug, 27 Aug, 28 Aug).