European Space Agency, University of Colorado Boulder, Technical University of Denmark, 2020, "SW_EEFxTMS_2F", European Space Agency, https://doi.org/10.57780/esa-7d59fd1
| Variable | Units | Description | Dim | Type |
|---|---|---|---|---|
| Timestamp | - | Time of satellite crossing of the magnetic equator, UTC | 1 | CDF_EPOCH |
| Longitude | degrees | Geographic longitude of satellite crossing of the magnetic equator | 1 | CDF_REAL8 |
| Latitude | degrees | Geographic latitude of satellite crossing of the magnetic equator | 1 | CDF_REAL8 |
| EEF | mV/m | Estimate of the equatorial electric field | 1 | CDF_REAL8 |
| EEJ_meast | A/km | Height-integrated magnetic eastward current profile, spanning [-20:0.5:20] degrees QD latitude | 81 | CDF_REAL8 |
| EEJ_mnorth | A/km | Height-integrated magnetic northward current profile, spanning [-20:0.5:20] degrees QD latitude | 81 | CDF_REAL8 |
| RelErr | - | Quality indicator of EEF estimate; relative error between modeled and observed current profile | 1 | CDF_REAL8 |
| Flags | - | Flags describing data gaps and satellite identification | 1 | CDF_UINT2 |
| Timestamp_Track | - | Timestamps along track, length provided in Length_Track | 3000 | CDF_EPOCH |
| Latitude_Track | degrees | Latitudes along track, length provided in Length_Track | 3000 | CDF_REAL8 |
| Longitude_Track | degress | Longitudes along track, length provided in Length_Track | 3000 | CDF_REAL8 |
| Radius_Track | km | Geocentric radii along track, length provided in Length_Track | 3000 | CDF_REAL8 |
| Ksq_Track | A/km | Surface current of estimated Sq signal, packed in geocentric north,east components,, length 2*Length_Track | 6000 | CDF_REAL8 |
| Keej_Track | A/km | Surface current of estimated EEJ signal, packed in geocentric north,east components,, length 2*Length_Track | 6000 | CDF_REAL8 |
| Length_Track | - | Array of track lengths | 1 | CDF_UINT4 |
| Product Identifier | EEFxTMS_2F |
| Definition | Dayside equatorial electric field |
| Input Data | MCO_SHA_2X, AUX_LIT_2, AUX_IGR_2 |
| Input Time Span | Every dayside equator crossing ±20 minutes |
| Spatial Representation | One longitude/latitude pair (on the magnetic equator) for each output value |
| Time Representation | Single values at time of dayside equator crossing |
| Units | mV/m |
| Resolution | 0.1 mV/m |
| Uncertainty | 0.1 mV/m |
| Quality Indicator | Relative error between modeled and observed current profile |
| Data Volume | < 10 MB |
| Output Data | CDF file with time series |
| Output Time Span | Continuous for entire mission. One value for each day-side equator crossing (90 minute sampling for day-night local time orbits, 45 minutes for dawn-dusk orbits) |
| Update Rate | One output file per day |
| Latency | 30 hours |
| Notes | The EEJ_meast and EEJ_mnorth vectors have length 81 and correspond to quasi-dipole (QD) latitudes ranging from -20° to +20° in steps of 0.5°. So for example, the corresponding QD latitude vector could be constructed using the following MATLAB syntax: qdvec = [-20:0.5:20]. The EEJ_meast profile is the projection of the EEJ current along the QD F1 basis vector. The EEJ_mnorth profile is the projection of the EEJ current along the QD F2 basis vector. The variables with suffix _Track have variable lengths depending upon the value in Length_Track |
Version 0502
Old variables (version 0501):
Timestamp CDF_EPOCH/1 0:[] T/ Latitude CDF_REAL8/1 0:[] T/ Longitude CDF_REAL8/1 0:[] T/ EEJ CDF_REAL8/1 1:[81] T/T EEF CDF_REAL8/1 0:[] T/ RelErr CDF_REAL8/1 0:[] T/ Flags CDF_UINT2/1 0:[] T/
New variables (version 0502):
Timestamp CDF_EPOCH/1 0:[] T/ Latitude CDF_REAL8/1 0:[] T/ Longitude CDF_REAL8/1 0:[] T/ EEJ_meast CDF_REAL8/1 1:[81] T/T EEJ_mnorth CDF_REAL8/1 1:[81] T/T EEF CDF_REAL8/1 0:[] T/ RelErr CDF_REAL8/1 0:[] T/ Flags CDF_UINT2/1 0:[] T/ Timestamp_Track CDF_EPOCH/1 1:[3000] T/T Latitude_Track CDF_REAL8/1 1:[3000] T/T Longitude_Track CDF_REAL8/1 1:[3000] T/T Radius_Track CDF_REAL8/1 1:[3000] T/T Ksq_Track CDF_REAL8/1 1:[6000] T/T Keej_Track CDF_REAL8/1 1:[6000] T/T Length_Track CDF_UINT4/1 0:[] T/