Collaborative Occultation Resources and Archive (CORA)

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

Stellar Occultation by (304) Olga on 2025-02-20 (17:43:03 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] : 79c2cbf0-8572-11ef-78cd-5f4afb7a5498 [asteroids]

 Occultation Date + Time   : 2025-02-20 at 17:43:03 UT +/- 0.0 min  [1]
 Object Designation        : (304) Olga
 Star Designation          : GDR3 0588163099371458176
 Star Coordinates (ICRF)   : RA = 09 33 19.6273, DE = +08 41 56.317  [2]
 Star Magnitudes           : G = 14.37 mag, RP = 13.5 mag, BP = 15.16 mag
 Object Magnitude          : V = 14.22 mag
 Estimated Magnitude Drop  : 0.7 mag
 Estimated Max. Duration   : 4.4 sec
 Object Mean Diameter      : 67.9 km  (src: astorb)
 Orbital Class             : MBA
 Speed of the shadow       : 15.6 km/s
 Elongation to Moon & Sun  : 99° (sunlit = 50%), Sun = 169°
 Cross-track uncertainty   : 0.7 mas = 0 km = 0.01 path-width (1-sig)
 RUWE and duplicate source : 0.97 mas, dup.src = 0  (0:false, 1:true)

 Ephemeris Reference       : JPL#79

 
 [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)