Solar wind, measured.
HISTORICAL DAY · 24 AUG 2026 · THE HERO REMAINS 13 OCT 2026
SOLAR WIND · 24 AUG 2026 · OBSERVED DAY · PUBLISHED 14 OCT 2026 06:37 UTC
- Speed
- 363 km/s
- Proton density
- 2.4 cm⁻³
- Temperature
- 66,700 K
Motion: speed · Population: density · Colour: temperature · temperature clipped · Coverage 96.4%
An abstract encoding of one day's measurements. Not a physical model and not an instrument feed.
Daily history
The 61 observed days ending at the selected day. Arrow through the cells; a hatched cell is a day without an eligible record and says why. Nothing is interpolated.
Daily values
| Quantity | Mean | Minimum | Maximum | Std. deviation |
|---|---|---|---|---|
| Speed (km/s) | 362.94504769228213347160219472704582971708812952001 | 328.30679712201612205992359199860377495573532711945 | 401.41403537877532240787617917584464989355366908926 | 14.149594489048930127970390636248542990237497191592 |
| Proton density (cm⁻³) | 2.4225245151929309495782841843892502590056255010995 | 1.30654108524322509765625 | 5.161553859710693359375 | 0.4986457069007472241574268363872899360131350725872 |
| Temperature (K) | 66679.836744790995071344029899162475810550286881424 | 40016.7421875 | 136912.96875 | 18871.413332960828084115702851334585720835114946521 |
Canonical values as admitted; the hero strip rounds for display only.
Daily change and position
| Quantity | Change on previous day | Relative change | Prior-30 position | Prior-60 position |
|---|---|---|---|---|
| Speed | -50.96 km/s | -12.31% | — (fewer than 30 eligible prior days) | — (fewer than 60 eligible prior days) |
| Proton density | -0.92 cm⁻³ | -27.63% | — (fewer than 30 eligible prior days) | — (fewer than 60 eligible prior days) |
| Temperature | -62,609.19 K | -48.43% | — (fewer than 30 eligible prior days) | — (fewer than 60 eligible prior days) |
Position is the percentile of this day's mean among the eligible daily means of exactly the 30 or 60 preceding days. It describes position within that window, not rarity.
Coverage
| Quantity | Valid duration | Longest gap | Valid samples | Excluded samples |
|---|---|---|---|---|
| Speed | 23.15 h of 24.00 h | 0.25 h | 1398 | 47 |
| Proton density | 23.15 h of 24.00 h | 0.25 h | 1398 | 47 |
| Temperature | 23.15 h of 24.00 h | 0.25 h | 1398 | 47 |
Source and lineage
| Provider | NOAA |
|---|---|
| Spacecraft | SOLAR1 |
| Instrument | SWIPS |
| Product | swips-l2 |
| Processing status | operational_provisional |
| Time basis | spacecraft_utc |
| Series version | solar1-swips-l2-uncorrected-v1 |
| Method version | solar-daily/1.0.0 |
| Quality policy version | solar1-range/1.0.0 |
| Eligibility | ELIGIBLE |
| History basis | reconstructed |
| Producer revision | 1 |
| Knowledge cutoff | 2026-10-01T10:44:13.096399Z |
| Admission id | 67fc5abedb8e5cc2f00f176844b87c75f55f0b50d49fa5a4a40d0b1f958c5187 |
| Admitted at | 2026-10-01T13:06:12.893680Z |
| Known to serving at | 2026-10-01T16:07:01.284949Z |
| Release id | sha256:d7c04c09699d6ad3667dceb7c321f1c4cabd02d616492fab46eb4b6bbb752976 |
| Portrait encoding | solar-portrait/2.0.0 |
Encoding bounds: speed 334–599 km/s (linear), density 1.73–14.36 cm⁻³ (log), temperature 69,412–357,988 K (log). Values outside saturate the visual and are marked clipped; the number shown is unchanged.