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
237/0845-1015	0920	1000	DSS-34	CANBERRA	Tue Aug 25 05:20 AM EDT	0:40
237/1436-1615	1511	1600	DSS-54	MADRID	Tue Aug 25 11:11 AM EDT	0:48
237/2250-0054	2335	0039	DSS-56	MADRID	Tue Aug 25 07:35 PM EDT	1:04
238/1945-2145	2030	2130	DSS-54	MADRID	Wed Aug 26 04:30 PM EDT	1:00

Chandra Events (Load link unavailable)
`Time (UT)`	Event	`Delta time`	`Time (Eastern)`
`2026:236:20:45:03`	Obsid: 30214 SI: ACIS-S (11 ksec) Target: WISE J2246-0526	`-11:33`	`4:45 PM Mon 24-Aug`
`2026:236:23:48:23`	Maneuver to 346.89381 45.44977 164.324 [2026:237:00:15:30]	`- 8:30`	`7:48 PM Mon 24-Aug`
`2026:237:00:15:30`	ER Obsid: 41205 (0 ksec) Purpose: Intermediate Attitud	`- 8:03`	`8:15 PM Mon 24-Aug`
`2026:237:00:15:51`	Maneuver to 215.77833 63.98409 290.614 [2026:237:00:41:06]	`- 8:03`	`8:15 PM Mon 24-Aug`
`2026:237:00:45:36`	Obsid: 30188 SI: ACIS-S (15 ksec) Target: SDSS J142314.36	`- 7:33`	`8:45 PM Mon 24-Aug`
`2026:237:02:05:00`	Comm pass on DSS-24 (duration 1:00)	`- 6:14`	`10:05 PM Mon 24-Aug`
`2026:237:04:55:36`	Maneuver to 346.89381 45.44977 164.532 [2026:237:05:20:51]	`- 3:23`	`12:55 AM Tue 25-Aug`
`2026:237:05:20:51`	ER Obsid: 41204 (0 ksec) Purpose: Perigee Attitude	`- 2:58`	`1:20 AM Tue 25-Aug`
`2026:237:05:21:12`	Maneuver to 341.54676 -5.45913 113.001 [2026:237:05:48:22]	`- 2:57`	`1:21 AM Tue 25-Aug`
`2026:237:05:52:52`	Obsid: 30216 SI: ACIS-S (11 ksec) Target: WISE J2246-0526	`- 2:26`	`1:52 AM Tue 25-Aug`
`2026:237:08:19:01`	--------------- NOW ---------------	`0:00`	`4:19 AM Tue 25-Aug`
`2026:237:08:56:12`	Maneuver to 346.89381 45.44977 164.700 [2026:237:09:23:23]	`0:37`	`4:56 AM Tue 25-Aug`
`2026:237:09:23:23`	ER Obsid: 41203 (0 ksec) Purpose: Perigee Attitude	`1:04`	`5:23 AM Tue 25-Aug`
`2026:237:09:23:44`	Maneuver to 215.77473 63.98540 291.013 [2026:237:09:48:59]	`1:04`	`5:23 AM Tue 25-Aug`
`2026:237:09:53:29`	Obsid: 32514 SI: ACIS-S (15 ksec) Target: SDSS J142314.36	`1:34`	`5:53 AM Tue 25-Aug`
`2026:237:11:40:47`	Load AUG2426A:CL237:1101 [2026:238:23:28:28]	`3:21`	`7:40 AM Tue 25-Aug`
`2026:237:11:40:47`	Load AUG2426A:CL237:1101 [2026:238:23:28:28]	`3:21`	`7:40 AM Tue 25-Aug`
`2026:237:14:07:44`	Maneuver to 298.95381 -8.51297 263.430 [2026:237:14:40:24]	`5:48`	`10:07 AM Tue 25-Aug`
`2026:237:14:44:54`	ER Obsid: 41202 (0 ksec) Purpose: Intermediate Attitud	`6:25`	`10:44 AM Tue 25-Aug`
`2026:237:15:00:35`	Maneuver to 188.74516 -64.54877 214.646 [2026:237:15:33:10]	`6:41`	`11:00 AM Tue 25-Aug`
`2026:237:15:15:00`	Comm pass on DSS-53 (duration 1:00)	`6:55`	`11:15 AM Tue 25-Aug`
`2026:237:15:40:00`	Obsid: 32496 SI: HRC-S (1 ksec) Target: RT Cru	`7:20`	`11:40 AM Tue 25-Aug`
`2026:237:15:56:40`	Maneuver to 188.29526 -64.62044 214.187 [2026:237:16:00:40]	`7:37`	`11:56 AM Tue 25-Aug`
`2026:237:16:05:10`	ER Obsid: 41201 (0 ksec) Purpose: Intermediate Attitud	`7:46`	`12:05 PM Tue 25-Aug`
`2026:237:16:20:51`	Maneuver to 267.17776 -27.14472 270.668 [2026:237:16:45:28]	`8:01`	`12:20 PM Tue 25-Aug`
`2026:237:16:49:58`	Obsid: 30128 SI: ACIS-S (14 ksec) Target: SNR G1.9+0.3	`8:30`	`12:49 PM Tue 25-Aug`
`2026:237:20:51:20`	Maneuver to 332.13944 -11.05446 280.849 [2026:237:21:16:34]	`12:32`	`4:51 PM Tue 25-Aug`
`2026:237:20:54:54`	Grating: HETG	`12:35`	`4:54 PM Tue 25-Aug`
`2026:237:20:56:57`	RADMON Disable	`12:37`	`4:56 PM Tue 25-Aug`
`2026:237:21:21:04`	ER Obsid: 41200 (3 ksec) Purpose: Perigee Attitude	`13:02`	`5:21 PM Tue 25-Aug`
`2026:237:23:35:00`	Comm pass on DSS-56 (duration 1:00)	`15:15`	`7:35 PM Tue 25-Aug`
`2026:238:01:21:28`	Maneuver to 220.64918 -32.97604 247.621 [2026:238:01:55:30]	`17:02`	`9:21 PM Tue 25-Aug`
`2026:238:02:00:00`	ER Obsid: 41199 (3 ksec) Purpose: Perigee Attitude	`17:40`	`10:00 PM Tue 25-Aug`
`2026:238:06:01:12`	Maneuver to 333.71409 -15.79212 350.097 [2026:238:06:35:30]	`21:42`	`2:01 AM Wed 26-Aug`
`2026:238:06:40:00`	ER Obsid: 41198 (0 ksec) Purpose: Perigee Attitude	`22:20`	`2:40 AM Wed 26-Aug`
`2026:238:08:52:34`	Maneuver to 134.88115 -43.53722 156.493 [2026:238:09:30:07]	`1d 00:33`	`4:52 AM Wed 26-Aug`
`2026:238:08:53:08`	Grating: NONE	`1d 00:34`	`4:53 AM Wed 26-Aug`
`2026:238:09:09:36`	RADMON Enable	`1d 00:50`	`5:09 AM Wed 26-Aug`
`2026:238:09:34:37`	Obsid: 30095 SI: ACIS-I (13 ksec) Target: [CTC2021] Vela	`1d 01:15`	`5:34 AM Wed 26-Aug`
`2026:238:11:20:00`	Comm pass on DSS-53 (duration 0:40)	`1d 03:00`	`7:20 AM Wed 26-Aug`
`2026:238:13:19:57`	Maneuver to 349.43918 -36.81991 30.057 [2026:238:13:51:47]	`1d 05:00`	`9:19 AM Wed 26-Aug`
`2026:238:13:56:17`	Obsid: 30034 SI: ACIS-S (11 ksec) Target: ACT-CL J2317.7-	`1d 05:37`	`9:56 AM Wed 26-Aug`
`2026:238:17:02:57`	Maneuver to 40.66066 -21.56550 91.112 [2026:238:17:26:42]	`1d 08:43`	`1:02 PM Wed 26-Aug`
`2026:238:17:31:12`	Obsid: 30407 SI: ACIS-S (9 ksec) Target: ClG J0242-2132	`1d 09:12`	`1:31 PM Wed 26-Aug`
`2026:238:20:12:35`	Maneuver to 344.91100 24.92226 163.717 [2026:238:20:45:08]	`1d 11:53`	`4:12 PM Wed 26-Aug`
`2026:238:20:30:00`	Comm pass on DSS-54 (duration 1:00)	`1d 12:10`	`4:30 PM Wed 26-Aug`
`2026:238:20:55:00`	Obsid: 32497 SI: HRC-S (1 ksec) Target: 2CXO J225932.9+	`1d 12:35`	`4:55 PM Wed 26-Aug`
`2026:238:21:11:40`	Maneuver to 344.77278 24.49030 163.801 [2026:238:21:15:40]	`1d 12:52`	`5:11 PM Wed 26-Aug`
`2026:238:21:20:10`	ER Obsid: 41197 (0 ksec) Purpose: Intermediate Attitud	`1d 13:01`	`5:20 PM Wed 26-Aug`
`2026:238:21:35:51`	Maneuver to 40.65928 -21.56301 90.975 [2026:238:22:08:26]	`1d 13:16`	`5:35 PM Wed 26-Aug`
`2026:238:22:12:56`	Obsid: 30409 SI: ACIS-S (68 ksec) Target: ClG J0242-2132	`1d 13:53`	`6:12 PM Wed 26-Aug`
`2026:238:23:54:19`	Load AUG2426A:CL238:2301 [2026:240:11:30:02]	`1d 15:35`	`7:54 PM Wed 26-Aug`
`2026:238:23:54:19`	Load AUG2426A:CL238:2301 [2026:240:11:30:02]	`1d 15:35`	`7:54 PM Wed 26-Aug`
`2026:239:03:00:00`	Comm pass on DSS-23 (duration 1:00)	`1d 18:40`	`11:00 PM Wed 26-Aug`
`2026:239:12:10:00`	Comm pass on DSS-54 (duration 1:00)	`2d 03:50`	`8:10 AM Thu 27-Aug`
`2026:239:17:11:59`	Maneuver to 342.53543 -9.90006 91.210 [2026:239:17:36:09]	`2d 08:52`	`1:11 PM Thu 27-Aug`
`2026:239:17:40:39`	ER Obsid: 41196 (0 ksec) Purpose: Intermediate Attitud	`2d 09:21`	`1:40 PM Thu 27-Aug`
`2026:239:17:56:20`	Maneuver to 35.61849 -8.96936 96.265 [2026:239:18:19:00]	`2d 09:37`	`1:56 PM Thu 27-Aug`
`2026:239:18:23:30`	Obsid: 31998 SI: ACIS-S (12 ksec) Target: SDSS J022226.11	`2d 10:04`	`2:23 PM Thu 27-Aug`
`2026:239:21:46:50`	Maneuver to 65.06417 19.22083 99.708 [2026:239:22:06:56]	`2d 13:27`	`5:46 PM Thu 27-Aug`
`2026:239:22:31:14`	Obsid: 31061 SI: HRC-I (5 ksec) Target: HD 27406	`2d 14:12`	`6:31 PM Thu 27-Aug`
`2026:239:23:54:34`	Maneuver to 341.54588 -5.45835 113.001 [2026:240:00:24:37]	`2d 15:35`	`7:54 PM Thu 27-Aug`
`2026:240:00:29:07`	Obsid: 32516 SI: ACIS-S (15 ksec) Target: WISE J2246-0526	`2d 16:10`	`8:29 PM Thu 27-Aug`
`2026:240:02:40:00`	Comm pass on DSS-23 (duration 1:00)	`2d 18:20`	`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 20:20`	`12:39 AM Fri 28-Aug`
`2026:240:05:11:04`	Obsid: 32510 SI: ACIS-S (22 ksec) Target: MASTER J0146+48	`2d 20:52`	`1:11 AM Fri 28-Aug`

Chandra Events (Load link unavailable)

Time (UT)

Event

Delta time

Time (Eastern)

2026:236:20:45:03

Obsid: 30214 SI: ACIS-S (11 ksec) Target: WISE J2246-0526

-11:33

4:45 PM Mon 24-Aug

2026:236:23:48:23

Maneuver to 346.89381 45.44977 164.324 [2026:237:00:15:30]

- 8:30

7:48 PM Mon 24-Aug

2026:237:00:15:30

ER Obsid: 41205 (0 ksec) Purpose: Intermediate Attitud

- 8:03

8:15 PM Mon 24-Aug

2026:237:00:15:51

Maneuver to 215.77833 63.98409 290.614 [2026:237:00:41:06]

- 8:03

8:15 PM Mon 24-Aug

2026:237:00:45:36

Obsid: 30188 SI: ACIS-S (15 ksec) Target: SDSS J142314.36

- 7:33

8:45 PM Mon 24-Aug

2026:237:02:05:00

Comm pass on DSS-24 (duration 1:00)

- 6:14

10:05 PM Mon 24-Aug

2026:237:04:55:36

Maneuver to 346.89381 45.44977 164.532 [2026:237:05:20:51]

- 3:23

12:55 AM Tue 25-Aug

2026:237:05:20:51

ER Obsid: 41204 (0 ksec) Purpose: Perigee Attitude

- 2:58

1:20 AM Tue 25-Aug

2026:237:05:21:12

Maneuver to 341.54676 -5.45913 113.001 [2026:237:05:48:22]

- 2:57

1:21 AM Tue 25-Aug

2026:237:05:52:52

Obsid: 30216 SI: ACIS-S (11 ksec) Target: WISE J2246-0526

- 2:26

1:52 AM Tue 25-Aug

2026:237:08:19:01

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

0:00

4:19 AM Tue 25-Aug

2026:237:08:56:12

Maneuver to 346.89381 45.44977 164.700 [2026:237:09:23:23]

0:37

4:56 AM Tue 25-Aug

2026:237:09:23:23

ER Obsid: 41203 (0 ksec) Purpose: Perigee Attitude

1:04

5:23 AM Tue 25-Aug

2026:237:09:23:44

Maneuver to 215.77473 63.98540 291.013 [2026:237:09:48:59]

1:04

5:23 AM Tue 25-Aug

2026:237:09:53:29

Obsid: 32514 SI: ACIS-S (15 ksec) Target: SDSS J142314.36

1:34

5:53 AM Tue 25-Aug

2026:237:11:40:47

Load AUG2426A:CL237:1101 [2026:238:23:28:28]

3:21

7:40 AM Tue 25-Aug

2026:237:11:40:47

Load AUG2426A:CL237:1101 [2026:238:23:28:28]

3:21

7:40 AM Tue 25-Aug

2026:237:14:07:44

Maneuver to 298.95381 -8.51297 263.430 [2026:237:14:40:24]

5:48

10:07 AM Tue 25-Aug

2026:237:14:44:54

ER Obsid: 41202 (0 ksec) Purpose: Intermediate Attitud

6:25

10:44 AM Tue 25-Aug

2026:237:15:00:35

Maneuver to 188.74516 -64.54877 214.646 [2026:237:15:33:10]

6:41

11:00 AM Tue 25-Aug

2026:237:15:15:00

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

6:55

11:15 AM Tue 25-Aug

2026:237:15:40:00

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

7:20

11:40 AM Tue 25-Aug

2026:237:15:56:40

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

7:37

11:56 AM Tue 25-Aug

2026:237:16:05:10

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

7:46

12:05 PM Tue 25-Aug

2026:237:16:20:51

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

8:01

12:20 PM Tue 25-Aug

2026:237:16:49:58

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

8:30

12:49 PM Tue 25-Aug

2026:237:20:51:20

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

12:32

4:51 PM Tue 25-Aug

2026:237:20:54:54

Grating: HETG

12:35

4:54 PM Tue 25-Aug

2026:237:20:56:57

RADMON Disable

12:37

4:56 PM Tue 25-Aug

2026:237:21:21:04

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

13:02

5:21 PM Tue 25-Aug

2026:237:23:35:00

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

15:15

7:35 PM Tue 25-Aug

2026:238:01:21:28

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

17:02

9:21 PM Tue 25-Aug

2026:238:02:00:00

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

17:40

10:00 PM Tue 25-Aug

2026:238:06:01:12

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

21:42

2:01 AM Wed 26-Aug

2026:238:06:40:00

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

22:20

2:40 AM Wed 26-Aug

2026:238:08:52:34

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

1d 00:33

4:52 AM Wed 26-Aug

2026:238:08:53:08

Grating: NONE

1d 00:34

4:53 AM Wed 26-Aug

2026:238:09:09:36

RADMON Enable

1d 00:50

5:09 AM Wed 26-Aug

2026:238:09:34:37

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

1d 01:15

5:34 AM Wed 26-Aug

2026:238:11:20:00

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

1d 03:00

7:20 AM Wed 26-Aug

2026:238:13:19:57

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

1d 05:00

9:19 AM Wed 26-Aug

2026:238:13:56:17

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

1d 05:37

9:56 AM Wed 26-Aug

2026:238:17:02:57

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

1d 08:43

1:02 PM Wed 26-Aug

2026:238:17:31:12

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

1d 09:12

1:31 PM Wed 26-Aug

2026:238:20:12:35

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

1d 11:53

4:12 PM Wed 26-Aug

2026:238:20:30:00

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

1d 12:10

4:30 PM Wed 26-Aug

2026:238:20:55:00

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

1d 12:35

4:55 PM Wed 26-Aug

2026:238:21:11:40

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

1d 12:52

5:11 PM Wed 26-Aug

2026:238:21:20:10

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

1d 13:01

5:20 PM Wed 26-Aug

2026:238:21:35:51

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

1d 13:16

5:35 PM Wed 26-Aug

2026:238:22:12:56

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

1d 13:53

6:12 PM Wed 26-Aug

2026:238:23:54:19

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

1d 15:35

7:54 PM Wed 26-Aug

2026:238:23:54:19

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

1d 15:35

7:54 PM Wed 26-Aug

2026:239:03:00:00

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

1d 18:40

11:00 PM Wed 26-Aug

2026:239:12:10:00

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

2d 03:50

8:10 AM Thu 27-Aug

2026:239:17:11:59

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

2d 08:52

1:11 PM Thu 27-Aug

2026:239:17:40:39

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

2d 09:21

1:40 PM Thu 27-Aug

2026:239:17:56:20

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

2d 09:37

1:56 PM Thu 27-Aug

2026:239:18:23:30

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

2d 10:04

2:23 PM Thu 27-Aug

2026:239:21:46:50

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

2d 13:27

5:46 PM Thu 27-Aug

2026:239:22:31:14

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

2d 14:12

6:31 PM Thu 27-Aug

2026:239:23:54:34

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

2d 15:35

7:54 PM Thu 27-Aug

2026:240:00:29:07

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

2d 16:10

8:29 PM Thu 27-Aug

2026:240:02:40:00

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

2d 18:20

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 20:20

12:39 AM Fri 28-Aug

2026:240:05:11:04

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

2d 20:52

1:11 AM Fri 28-Aug

CXO and GOES rates

CXO

GOES

Limit

HRC shield

250

HRC MCP

6374

P4GM

---

2.93

300

P41GM

---

0.01

8.47

CXO: from snapshot at 2026:237:03:30:58 (- 4:48)
GOES proxies: scaled 15 min average of GOES-16
Last avgs at HRC: - 0:19 P4GM: - 0:19 P41GM: - 0:19

ACE rates

Value

2hr limit

Orbital limit

Hours to
Orbital limit

Current flux

141

50000

12000

> 30

2hr avg flux

181

50000

12000

> 30

Orbital fluence

2.6x10⁷

---

2.0x10⁹

---

ACE data from 2026:237:08:05:00 (- 0:14)
Orbital fluence: integrated attenuated ACE flux
Grating attenuation not factored into current or 2hr flux numbers
RADMON and SOT alert limits information

3-day Solar-Geophysical Forecast
Geophysical Activity	Geophysical Activity Summary 23/2100Z to 24/2100Z: The geomagnetic field has been at quiet levels for the past 24 hours. Solar wind speed reached a peak of 415 km/s at 23/2121Z. Total IMF reached 6 nT at 24/1937Z. The maximum southward component of Bz reached -4 nT at 24/0328Z. Protons greater than 10 MeV at geosynchronous orbit reached a peak level of 4 pfu at 24/0535Z. Electrons greater than 2 MeV at geosynchronous orbit reached a peak level of 1643 pfu. IIB. Geophysical Activity Forecast: The geomagnetic field is expected to be at quiet levels on days one and two (25 Aug, 26 Aug) and quiet to active levels on day three (27 Aug). Protons have a chance of crossing threshold on day one (25 Aug) and have a slight chance of crossing threshold on days two and three (26 Aug, 27 Aug).
Solar Activity	Analysis of Solar Active Regions and Activity from 23/2100Z to 24/2100Z: Solar activity has been at moderate levels for the past 24 hours. There are currently 4 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 (25 Aug, 26 Aug, 27 Aug).

3-day Solar-Geophysical Forecast

Geophysical Activity

Geophysical Activity Summary 23/2100Z to 24/2100Z: The geomagnetic field has been at quiet levels for the past 24 hours. Solar wind speed reached a peak of 415 km/s at 23/2121Z. Total IMF reached 6 nT at 24/1937Z. The maximum southward component of Bz reached -4 nT at 24/0328Z. Protons greater than 10 MeV at geosynchronous orbit reached a peak level of 4 pfu at 24/0535Z. Electrons greater than 2 MeV at geosynchronous orbit reached a peak level of 1643 pfu. IIB. Geophysical Activity Forecast: The geomagnetic field is expected to be at quiet levels on days one and two (25 Aug, 26 Aug) and quiet to active levels on day three (27 Aug). Protons have a chance of crossing threshold on day one (25 Aug) and have a slight chance of crossing threshold on days two and three (26 Aug, 27 Aug).

Solar Activity

Analysis of Solar Active Regions and Activity from 23/2100Z to 24/2100Z: Solar activity has been at moderate levels for the past 24 hours. There are currently 4 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 (25 Aug, 26 Aug, 27 Aug).