Collaborative Occultation
Resources and Archive
CORA

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

Stellar Occultation by (1473) Ounas on 2025-11-20 (00:49:21 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] : bc0a7bd0-ddb8-11f0-547e-64fafcf9d0ec [observed]

 Occultation Date + Time   : 2025-11-20 at 00:49:21 UT +/- 0.0 min  [1]
 Object Designation        : (1473) Ounas
 Star Designation          : GDR3 3336242192224862976
 Star Coordinates (ICRF)   : RA = 05 46 49.7893, DE = +09 39 46.115  [2]
 Star Magnitudes           : G = 7.4 mag, RP = 6.73 mag, BP = 7.91 mag
 Object Magnitude          : V = 15.48 mag
 Estimated Magnitude Drop  : 8.1 mag
 Estimated Max. Duration   : 1.7 sec
 Speed of the shadow       : 10.5 km/s
 Object Mean Diameter      : 17.6 km  (src: astorb) => apparent = 16 mas
 Apparent Motion           : 0.5683 arcs/min @ PA = 236 deg
 Horizontal Parallax       : 5.7260 arcs
 Dynamical Class           : MBA
 Elongation to Moon & Sun  : 144° (sunlit = 0%), Sun = 148°
 Cross-track uncertainty   : 0.4 mas = 0 km = 0.03 path-width (1-sig)
 RUWE and duplicate source : 1.0 mas, dup.src = 1  (0:false, 1:true)

 Ephemeris Reference       : JPL#67
 Note                      : FP:true

 
 [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

Download KMZ file

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