Collaborative Occultation
Resources and Archive
CORA

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

Stellar Occultation by (149) Medusa on 2023-09-22 (02:32:44 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] : 1120a810-ddb4-11f0-547e-3460ddef0164 [observed]

 Occultation Date + Time   : 2023-09-22 at 02:32:44 UT +/- 0.0 min  [1]
 Object Designation        : (149) Medusa
 Star Designation          : GDR3 3403978082792327296
 Star Coordinates (ICRF)   : RA = 05 27 22.3374, DE = +22 07 28.466  [2]
 Star Magnitudes           : G = 14.87 mag, RP = 14.24 mag, BP = 15.32 mag
 Object Magnitude          : V = 14.45 mag
 Estimated Magnitude Drop  : 0.6 mag
 Estimated Max. Duration   : 1.3 sec
 Speed of the shadow       : 15.1 km/s
 Object Mean Diameter      : 19.7 km  (src: astorb) => apparent = 16 mas
 Apparent Motion           : 0.7517 arcs/min @ PA = 89 deg
 Horizontal Parallax       : 5.2830 arcs
 Dynamical Class           : MBA
 Elongation to Moon & Sun  : 174° (sunlit = 43%), Sun = 96°
 Cross-track uncertainty   : 0.4 mas = 0 km = 0.02 path-width (1-sig)
 RUWE and duplicate source : 1.04 mas, dup.src = 0  (0:false, 1:true)

 Ephemeris Reference       : JPL#79
 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)