Real data from NASA/CCMC DONKI and NOAA SWPC · read from committed snapshots

Space weather

NOAA S-level now

S0 · no storm

Latest real reading: 0.23 pfu of ≥10 MeV protons at 2026-11-14 15:00 UTC (GOES-18). 7-day peak: 0.48 pfu.

NOAA solar radiation storm scale ⓘ source
S1	Minor	≥ 10 pfu
S2	Moderate	≥ 100 pfu
S3	Strong	≥ 1,000 pfu
S4	Severe	≥ 10,000 pfu
S5	Extreme	≥ 100,000 pfu

Snapshot fetched 2026-11-14 15:18 UTC. Run npm run fetch-data to refresh. Credit: NOAA SWPC.

GOES proton flux, ≥10 MeV — last 7 days of real data

Hourly maximum, particle flux units (pfu), log scale.

ⓘ source

Dose impact of replayed events

Event timing follows NASA DONKI records. Onboard dose spike: +2 mSv, or +4 mSv when GOES also saw >100 MeV protons.

Day 120 — replay of the real event of 2026-09-05 16:15 UTC (GOES-P: SEISS >10 MeV). NOAA S1 or higher. NASA/CCMC DONKI record ↗

Crew	Typical day	Event day	Day after	× typical
Haddad	1.76 mSv	5.70 mSv	3.11 mSv	3.2×
Sato	1.83 mSv	5.61 mSv	3.33 mSv	3.1×
Oliveira	1.78 mSv	5.66 mSv	3.00 mSv	3.2×
Okafor	1.89 mSv	6.08 mSv	3.23 mSv	3.2×

Day 83 — replay of the real event of 2026-07-30 18:45 UTC (GOES-P: SEISS >10 MeV). NOAA S1 or higher. NASA/CCMC DONKI record ↗

Crew	Typical day	Event day	Day after	× typical
Haddad	1.72 mSv	5.51 mSv	3.30 mSv	3.2×
Sato	1.82 mSv	5.57 mSv	3.37 mSv	3.1×
Oliveira	1.83 mSv	5.96 mSv	3.14 mSv	3.3×
Okafor	1.92 mSv	5.72 mSv	3.41 mSv	3.0×

Day 18 — replay of the real event of 2026-05-26 00:15 UTC (GOES-P: SEISS >10 MeV). NOAA S1 or higher. NASA/CCMC DONKI record ↗

Crew	Typical day	Event day	Day after	× typical
Haddad	1.70 mSv	3.50 mSv	2.43 mSv	2.1×
Sato	1.83 mSv	3.68 mSv	2.66 mSv	2.0×
Oliveira	1.86 mSv	4.00 mSv	2.66 mSv	2.2×
Okafor	1.80 mSv	3.95 mSv	2.48 mSv	2.2×

Typical day uses the Transit rate of 1.8 mSv/day ⓘ source with ±15% day-to-day variation.

Storm-shelter checklist

Shown when a solar particle event starts.

Standby

1. Stop outside workAny spacewalk ends now. Crew return inside.
2. Move to the storm shelterThe most shielded part of the cabin, behind water and stores.
3. Log your personal dosimeterTotal and neutron channel, at the start and every 6 hours.
4. Count the crewEveryone is in the shelter and answering.
5. Stay until the all-clearProton flux back below the S1 line (10 pfu).
6. Send dose readings to HoustonThey travel on the delayed link.

0 of 6 done

Geomagnetic activity

Planetary K index, latest real readings. Matters most in low Earth orbit (Station profile).

ⓘ source

Kp 1 — below storm level at 2026-11-15 03:00 UTC

Peak in the snapshot: Kp 5 on 2026-11-08 (G1). NOAA G-scale: G1 starts at Kp 5.

Snapshot fetched 2026-11-15. Listed for context; it raises no onboard alert.

Real events replayed on this mission (up to Day 143)

Replay mode: the latest real GOES-measured particle event is placed on Day 120, and every other real event keeps its real distance in days from it. Only particle events measured near Earth by GOES at ≥10 MeV raise an onboard alert.

ⓘ source

Mission day	Real time (UTC)	Event	Detail	Onboard effect	Source
Day 120	2026-09-05 16:30	Solar energetic particles	MODEL: REleASE:ACE/EPAM 15.8-39.8 MeV	Listed only	DONKI ↗
Day 120	2026-09-05 16:30	Solar energetic particles	MODEL: REleASE:SOHO/EPHIN 15.8-39.8 MeV	Listed only	DONKI ↗
Day 120	2026-09-05 16:30	Solar energetic particles	MODEL: REleASE:SOHO/EPHIN 28.2-50.1 MeV	Listed only	DONKI ↗
Day 120	2026-09-05 16:30	Solar energetic particles	MODEL: REleASE:ACE/EPAM 28.2-50.1 MeV	Listed only	DONKI ↗
Day 120	2026-09-05 16:18	Solar energetic particles	SOHO: COSTEP 15.8-39.8 MeV	Listed only	DONKI ↗
Day 120	2026-09-05 16:18	Solar energetic particles	SOHO: COSTEP 28.2-50.1 MeV	Listed only	DONKI ↗
Day 120	2026-09-05 16:15	Solar energetic particles	GOES-P: SEISS >10 MeV	Radiation alert · S1 or higher	DONKI ↗
Day 120	2026-09-05 15:45	Solar energetic particles	GOES-P: SEISS >100 MeV	Listed only	DONKI ↗
Day 120	2026-09-05 15:18	Solar flare M1.0	GOES-P: EXIS 1.0-8.0	Listed only	DONKI ↗
Day 119	2026-09-04 07:53	Solar flare M1.2	GOES-P: EXIS 1.0-8.0	Listed only	DONKI ↗
Day 117	2026-09-02 19:20	Solar flare M3.0	GOES-P: EXIS 1.0-8.0	Listed only	DONKI ↗
Day 110	2026-08-26 12:14	Solar flare M1.0	GOES-P: EXIS 1.0-8.0	Listed only	DONKI ↗
Day 110	2026-08-26 06:34	Solar flare M2.2	GOES-P: EXIS 1.0-8.0	Listed only	DONKI ↗
Day 109	2026-08-25 10:02	Solar flare M6.9	GOES-P: EXIS 1.0-8.0	Listed only	DONKI ↗
Day 109	2026-08-25 06:40	Solar flare M1.8	GOES-P: EXIS 1.0-8.0	Listed only	DONKI ↗
Day 109	2026-08-25 04:02	Solar flare M1.0	GOES-P: EXIS 1.0-8.0	Listed only	DONKI ↗
Day 109	2026-08-25 01:26	Solar flare M1.9	GOES-P: EXIS 1.0-8.0	Listed only	DONKI ↗
Day 108	2026-08-24 19:36	Solar flare M1.7	GOES-P: EXIS 1.0-8.0	Listed only	DONKI ↗
Day 106	2026-08-22 22:28	Solar energetic particles	STEREO A: IMPACT 13-100 MeV	Listed only	DONKI ↗
Day 105	2026-08-21 17:33	Solar energetic particles	STEREO A: IMPACT 13-100 MeV	Listed only	DONKI ↗
Day 105	2026-08-21 10:18	Solar flare M1.6	GOES-P: EXIS 1.0-8.0	Listed only	DONKI ↗
Day 104	2026-08-20 20:23	Solar energetic particles	STEREO A: IMPACT 13-100 MeV	Listed only	DONKI ↗
Day 104	2026-08-20 16:11	Solar flare M2.9	GOES-P: EXIS 1.0-8.0	Listed only	DONKI ↗
Day 104	2026-08-20 11:42	Solar flare M8.1	GOES-P: EXIS 1.0-8.0	Listed only	DONKI ↗
Day 104	2026-08-20 08:05	Solar flare M1.8	GOES-P: EXIS 1.0-8.0	Listed only	DONKI ↗
Day 103	2026-08-19 18:51	Solar flare M1.0	GOES-P: EXIS 1.0-8.0	Listed only	DONKI ↗
Day 92	2026-08-08 18:00	Geomagnetic storm Kp 5.67		Listed only	DONKI ↗
Day 86	2026-08-02 15:00	Geomagnetic storm Kp 5.67		Listed only	DONKI ↗
Day 83	2026-07-30 20:58	Solar energetic particles	SOHO: COSTEP 28.2-50.1 MeV	Listed only	DONKI ↗
Day 83	2026-07-30 20:52	Solar energetic particles	SOHO: COSTEP 15.8-39.8 MeV	Listed only	DONKI ↗
Day 83	2026-07-30 18:45	Solar energetic particles	GOES-P: SEISS >10 MeV	Radiation alert · S1 or higher	DONKI ↗
Day 83	2026-07-30 18:25	Solar energetic particles	GOES-P: SEISS >100 MeV	Listed only	DONKI ↗
Day 83	2026-07-30 18:20	Solar energetic particles	MODEL: REleASE:ACE/EPAM 28.2-50.1 MeV	Listed only	DONKI ↗
Day 83	2026-07-30 18:20	Solar energetic particles	MODEL: REleASE:ACE/EPAM 15.8-39.8 MeV	Listed only	DONKI ↗
Day 83	2026-07-30 17:00	Solar flare M1.9	GOES-P: EXIS 1.0-8.0	Listed only	DONKI ↗
Day 80	2026-07-27 02:43	Solar flare M1.0	GOES-P: EXIS 1.0-8.0	Listed only	DONKI ↗
Day 79	2026-07-26 15:28	Solar flare M3.2	GOES-P: EXIS 1.0-8.0	Listed only	DONKI ↗
Day 75	2026-07-22 06:35	Solar flare M3.6	GOES-S: EXIS 1.0-8.0	Listed only	DONKI ↗
Day 74	2026-07-21 17:27	Solar flare M1.9	GOES-P: EXIS 1.0-8.0	Listed only	DONKI ↗
Day 73	2026-07-20 22:25	Solar flare M3.4	GOES-P: EXIS 1.0-8.0	Listed only	DONKI ↗

Showing the 40 most recent of 133 replayed events.

Latest real events in the snapshot

363 events from 2025-11-14 to 2026-11-14: particle events, M- and X-class flares, geomagnetic storms. Fetched 2026-11-14 via ccmc.gsfc.nasa.gov/DONKI-API.

ⓘ source

Real time (UTC)	Event	Detail	Onboard effect	Source
2026-11-11 21:21	Solar flare M1.7	GOES-P: EXIS 1.0-8.0	Listed only	DONKI ↗
2026-11-08 18:27	Solar flare M1.1	GOES-P: EXIS 1.0-8.0	Listed only	DONKI ↗
2026-11-08 15:37	Solar flare M1.1	GOES-P: EXIS 1.0-8.0	Listed only	DONKI ↗
2026-11-08 07:46	Solar flare M1.7	GOES-P: EXIS 1.0-8.0	Listed only	DONKI ↗
2026-11-07 18:42	Solar flare M1.9	GOES-P: EXIS 1.0-8.0	Listed only	DONKI ↗
2026-11-07 17:17	Solar flare M1.4	GOES-P: EXIS 1.0-8.0	Listed only	DONKI ↗
2026-11-07 12:43	Solar flare M1.2	GOES-P: EXIS 1.0-8.0	Listed only	DONKI ↗
2026-11-05 18:33	Solar flare M3.5	GOES-P: EXIS 1.0-8.0	Listed only	DONKI ↗
2026-10-31 18:00	Geomagnetic storm Kp 6		Listed only	DONKI ↗
2026-10-19 09:03	Solar flare M1.6	GOES-P: EXIS 1.0-8.0	Listed only	DONKI ↗
2026-10-16 15:42	Solar flare M1.3	GOES-P: EXIS 1.0-8.0	Listed only	DONKI ↗
2026-10-10 15:10	Solar flare M6.4	GOES-P: EXIS 1.0-8.0	Listed only	DONKI ↗

Reading onboard data…

NOAA solar radiation storm scale ⓘ source

Minor

≥ 10 pfu

Moderate

≥ 100 pfu

Strong

≥ 1,000 pfu

Severe

≥ 10,000 pfu

Extreme

≥ 100,000 pfu

Crew

Typical day

Event day

Day after

× typical

Haddad

1.76 mSv

5.70 mSv

3.11 mSv

3.2×

Sato

1.83 mSv

5.61 mSv

3.33 mSv

3.1×

Oliveira

1.78 mSv

5.66 mSv

3.00 mSv

3.2×

Okafor

1.89 mSv

6.08 mSv

3.23 mSv

3.2×

Crew

Typical day

Event day

Day after

× typical

Haddad

1.72 mSv

5.51 mSv

3.30 mSv

3.2×

Sato

1.82 mSv

5.57 mSv

3.37 mSv

3.1×

Oliveira

1.83 mSv

5.96 mSv

3.14 mSv

3.3×

Okafor

1.92 mSv

5.72 mSv

3.41 mSv

3.0×

Crew

Typical day

Event day

Day after

× typical

Haddad

1.70 mSv

3.50 mSv

2.43 mSv

2.1×

Sato

1.83 mSv

3.68 mSv

2.66 mSv

2.0×

Oliveira

1.86 mSv

4.00 mSv

2.66 mSv

2.2×

Okafor

1.80 mSv

3.95 mSv

2.48 mSv

2.2×

Mission day

Real time (UTC)

Event

Detail

Onboard effect

Source

Day 120

2026-09-05 16:30

Solar energetic particles

MODEL: REleASE:ACE/EPAM 15.8-39.8 MeV

Listed only