Collaborative Occultation Resources and Archive (CORA)

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

Stellar Occultation by (55730) 1981 EM33 on 2023-09-27 (01:32:47 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] : 16ae4ba2-0bf1-43df-899f-0768e018dc65 [observed]

 Occultation Date + Time   : 2023-09-27 at 01:32:47 UT +/- 0.04 min  [1]
 Object Designation        : (55730) 1981 EM33
 Star Designation          : GDR3 2661692250962004224
 Star Coordinates (ICRF)   : RA = 23 05 19.2476, DE = +03 06 39.793  [2]
 Star Magnitudes           : G = 11.94 mag, RP = 11.32 mag, BP = 12.4 mag
 Object Magnitude          : V = 17.69 mag
 Estimated Magnitude Drop  : 5.8 mag
 Estimated Max. Duration   : 0.5 sec
 Object Mean Diameter      : 4.0 km  (src: astorb)
 Orbital Class             : MBA
 Speed of the shadow       : 9.0 km/s
 Elongation to Moon & Sun  : 22° (sunlit = 92%), Sun = 163°
 Cross-track uncertainty   : 14.3 mas = 13 km = 3.49 path-width (1-sig)
 RUWE and duplicate source : 1.43 mas, dup.src = 0  (0:false, 1:true)

 Ephemeris Reference       : JPL#42

 
 [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)