European Space Agency, British Geological Survey, 2021, "SW_VOBS_4M_2_", European Space Agency, https://doi.org/10.57780/esa-9879355
| Variable | Units | Description | Dim | Type |
|---|---|---|---|---|
| Timestamp | - | Time of observation | 1 | CDF_EPOCH |
| Latitude | deg | Geocentric latitude | 1 | CDF_DOUBLE |
| Longitude | deg | Geocentric longitude | 1 | CDF_DOUBLE |
| Radius | m | Radius | 1 | CDF_DOUBLE |
| B_OB | nT | Estimated observed GVO magnetic field, spherical polar (r,theta,phi) vector components [i.e (-C,-N,E) components in NEC frame] | 3 | CDF_DOUBLE |
| sigma_OB | nT | Observed field estimated error | 3 | CDF_DOUBLE |
| B_CF | nT | Estimated core GVO magnetic field, spherical polar (r,theta,phi) vector components [i.e (-C,-N,E) components in NEC frame] | 3 | CDF_DOUBLE |
| sigma_CF | nT | Core field estimated error | 3 | CDF_DOUBLE |
| Timestamp_SV | - | Time of Secular Variation (*_SV) data | 1 | CDF_EPOCH |
| B_SV | nT/yr | Estimated secular variation (SV) GVO magnetic field, spherical polar (r,theta,phi) vector components [i.e (-C,-N,E) components in NEC frame] | 3 | CDF_DOUBLE |
| sigma_SV | nT/yr | Secular variation field estimated error | 3 | CDF_DOUBLE |