Collaborative Occultation Resources and Archive (CORA)

Occultations | Observations | Reports | Info + Credits | JOA | Admin | Login

Stellar Occultation by (335) Roberta on 2024-07-21 (21:15:00 UT)

CTU: Cross-track uncertainty (zero means: use the nominal prediction value, see event details below). Offsets and CTU all in mas.


Event Details
 Occultation UUID [and db] : 5dbc7800-c34f-11ef-5276-0c01ff76af0f [observed]

 Occultation Date + Time   : 2024-07-21 at 21:15:00 UT +/- 0.02 min  [1]
 Object Designation        : (335) Roberta
 Star Designation          : GDR3 6888490861128180608
 Star Coordinates (ICRF)   : RA = 21 00 17.8857, DE = -13 11 51.594  [2]
 Star Magnitudes           : G = 11.27 mag, RP = 10.07 mag, BP = 10.9 mag
 Object Magnitude          : V = 11.37 mag
 Estimated Magnitude Drop  : 0.8 mag
 Estimated Max. Duration   : 13.5 sec
 Object Mean Diameter      : 89 km  (src: astorb)
 Orbital Class             : MBA
 Speed of the shadow       : 6.6 km/s
 Elongation to Moon & Sun  : 11° (sunlit = 100%), Sun = 165°
 Cross-track uncertainty   : 1.9 mas = 1 km = 0.02 path-width (1-sig)
 RUWE and duplicate source : 6.23 mas, dup.src = 0  (0:false, 1:true)

 Ephemeris Reference       : JPL#86

 
 [1] time t0 of closest geocentric approach c/a, [2] including proper motion until t0


More Data and Informations
SiMDA | 3D Asteroid Catalogue | Johnston Archive | Star at CDS (Vizier) | JPL Small-Body Node | Minor Planet Center | Wikipedia
(If error 404: link not valid which means no data available)


Interactive map



Aladin Sky Atlas
Aladin Lite direct link (has Gaia overlay)