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| Name | Modified | Size | Downloads / Week |
|---|---|---|---|
| Parent folder | |||
| CHECKSUMS.sha256 | 2026-03-29 | 173 Bytes | |
| README.md | 2026-03-29 | 1.7 kB | |
| 3y0k-bouvet-island-2026.sqlite | 2026-03-29 | 1.6 MB | |
| Totals: 3 Items | 1.6 MB | 1 | |
3Y0K — Bouvet Island Propagation Dataset
Overview
| Field | Value |
|---|---|
| Callsign | 3Y0K |
| Entity | Bouvet Island |
| Grid | JD04 (54.4°S, 3.4°E) |
| Operation | 2026-03-01 through 2026-03-14 |
| Analysis Window | ±48h padding (2026-02-27 to 2026-03-16) |
Contents
| Table | Rows | Description |
|---|---|---|
| rbn_spots | 3,209 | Raw RBN CW skimmer observations |
| rbn_signatures | 548 | 13-column aggregated signatures (RBN) |
| pskr_signatures | 6,416 | 13-column aggregated signatures (PSKR digital modes) |
| solar_timeline | 144 | Solar conditions (GFZ SFI/SSN/Kp/Ap + DSCOVR Bz/speed/density) |
| dxpedition_info | 1 | Metadata (callsign, entity, grid, dates, modes, bands, solar stats) |
| predictions | 6,964 | IONIS V22-gamma + VOACAP predictions with observed SNR |
Key Findings
- IONIS V22-gamma bias: -1.9 dB (RMSE 9.8 dB)
- VOACAP bias: -11.3 dB (811 circuit failure flags < -100 dB)
- Quiet (Kp<2): IONIS within 0.2 dB of observed
- Storm (Kp>=4): IONIS +5.8 dB bias, VOACAP predicts band closure for open paths
- Interactive analysis: https://dxpedition-demo.vercel.app/
Data Sources
- Reverse Beacon Network (reversebeacon.net) — CW skimmer observations
- PSK Reporter (pskreporter.info) — FT8/FT4 digital mode spots
- GFZ Potsdam — Historical SFI, SSN, Kp, Ap indices
- NOAA DSCOVR L1 — Solar wind Bz, speed, density
- VOACAP (voacapl v16.1207W) — Deterministic ray-tracing predictions
License
CC BY 4.0 — Attribution required. Data from RBN and PSK Reporter used under their respective terms.
Generated
Exported by the IONIS Sovereign AI Lab (qso-graph.io).
