Table 2.
Representative magnitudes of the satellites.
| Satellite | Operational | Mag | Mag | Mag | pr2 | p | r | Ref. |
|---|---|---|---|---|---|---|---|---|
| altitude | at op. | dispersion | at | |||||
| (km) | alt. | 1000 km | (m2) | (m) | ||||
| Starlink original | 550 km | 4.6 | 0.7 | 5.9 | 0.085 | 0.25 | 0.58 | 1 |
| 4.0 | 0.7 | 5.3 | 0.152 | 0.25 | 0.78 | 2 | ||
| 4.2 | (model) | 5.5 | 0.125 | 0.25 | 0.71 | 3 | ||
| Starlink DarkSat | 550 km | 5.1 | (single) | 6.4 | 0.056 | 0.08 | 0.71 | 4 |
| Starlink VisorSat | 550 km | 6.2 | 0.8 | 7.5 | 0.023 | 0.25 | 0.30 | 5 |
| 5.8 | 0.6 | 7.1 | 0.028 | 0.25 | 0.33 | 6 | ||
| OneWeb | 1200 km | 7.6 | 0.7 | 7.2 | 0.027 | 0.25 | 0.33 | 7 |
Notes. p is the (arbitrary) geometric albedo used for the conversion of the cross-section pr2 into an estimate of the radius r.
References. 1: Mallama (2020b); 2: Krantz in Otarola et al. (2020); 3: value used in Hainaut & Williams (2020); 4: using the darkening of 0.88 mag on one DarkSat, from Tregloan-Reed et al. (2020); 5: median value from Mallama (2021); 6: average from Krantz in Otarola et al. (2020); 7: Mallama (2020c).
Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.
Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.
Initial download of the metrics may take a while.