Solar wind, measured.
HISTORICAL DAY · 18 AUG 2026 · THE HERO REMAINS 13 OCT 2026
SOLAR WIND · 18 AUG 2026 · OBSERVED DAY · PUBLISHED 14 OCT 2026 06:37 UTC
- Speed
- 455 km/s
- Proton density
- 11.2 cm⁻³
- Temperature
- 210,000 K
Motion: speed · Population: density · Colour: temperature · Coverage 99.2%
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) | 455.30995874045186349735414822685081645794234017793 | 371.34397977856645772285349241964353949429811948384 | 604.48626842108667503331930933031796278630657689385 | 71.765293125203626738274226528865292142126626588035 |
| Proton density (cm⁻³) | 11.155075863666127785570666029552728953590670272311 | 5.92681598663330078125 | 19.63430023193359375 | 2.9162228879783823917357498524974376893883708423589 |
| Temperature (K) | 209926.63526424172123258308769988027987145025386243 | 77259.359375 | 536907.75 | 111684.28201453417993225634758886483608629655260024 |
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 | — (previous day ineligible) | — (previous day ineligible) | — (fewer than 30 eligible prior days) | — (fewer than 60 eligible prior days) |
| Proton density | — (previous day ineligible) | — (previous day ineligible) | — (fewer than 30 eligible prior days) | — (fewer than 60 eligible prior days) |
| Temperature | — (previous day ineligible) | — (previous day ineligible) | — (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 | 23.82 h of 24.00 h | 0.01 h | 1438 | 0 |
| Proton density | 23.82 h of 24.00 h | 0.01 h | 1438 | 0 |
| Temperature | 23.82 h of 24.00 h | 0.01 h | 1438 | 0 |
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 | f727b53b29f6919fb9d232609813f95d0da81265587cc5e39698624a2b557b06 |
| Admitted at | 2026-10-01T13:06:12.368413Z |
| 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.