Table 1
Occultation circumstances and target star parameters for (24835) 1995 SM55 on February 25, 2024.
| Occultation parameters (NIMAv9) | |
|---|---|
| Date and time of CA (t0) | Sun. 25 Feb. 2024 |
| 18:13:56 UT ±175.6 s | |
| Geocentric shadow velocity | 10.42 km/s |
| Magnitude drop | 8.2 mag |
| Apriori maximum duration | 67.6 s |
| Apriori angular size of 1995 SM55 | 12 mas |
| Occulted star data (from Gaia DR3) | |
| Gaia DR3 source ID | 224489389287197184 |
| Proper motion (mas/yr) | µα* = +5.8 ± 0.0 |
| µδ = −7.2 ± 0.0 | |
| Position (ICRS, cat. epoch) | α = 03 40 30.5237 |
| δ = +39 08 06.706 | |
| Position (ICRS, occ. epoch) | α = 03 40 30.5277 |
| δ = +39 08 06.647 | |
| Position error (occ. epoch) | σα* = 0.1 mas |
| σδ = 0.1 mas | |
| G, RP, BP magnitudes | 12.4, 12.0, 12.7 |
| J, H, K magnitudes (from NOMAD) | 11.5, 11.3, 11.3 |
Notes. The maximum occultation duration (central line) and the apparent diameter of the TNO were obtained by assuming a mean geometric TNO albedo, which is far from correct in this case. V, R, B, J, H, K magnitudes of the target star were taken from the NOMAD catalog (Zacharias et al. 2004).
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.