Collaborative Occultation Resources and Archive (CORA)

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

Stellar Occultation by (11047) 1990 QL1 on 2023-08-31 (20:25:45 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] : 6ae811a2-f8ae-4eb8-9a0e-81942e86c30d [observed]

 Occultation Date + Time   : 2023-08-31 at 20:25:45 UT +/- 0.05 min  [1]
 Object Designation        : (11047) 1990 QL1
 Star Designation          : GDR3 6876934272366885504
 Star Coordinates (ICRF)   : RA = 20 24 37.7045, DE = -12 43 00.822  [2]
 Star Magnitudes           : G = 13.75 mag, RP = 13.27 mag, BP = 14.05 mag
 Object Magnitude          : V = 17.94 mag
 Estimated Magnitude Drop  : 4.2 mag
 Estimated Max. Duration   : 0.8 sec
 Object Mean Diameter      : 7.2 km  (src: astorb)
 Orbital Class             : MBA
 Speed of the shadow       : 9.4 km/s
 Elongation to Moon & Sun  : 45° (sunlit = 99%), Sun = 147°
 Cross-track uncertainty   : 2.0 mas = 2 km = 0.41 path-width (1-sig)
 RUWE and duplicate source : 2.52 mas, dup.src = 0  (0:false, 1:true)

 Ephemeris Reference       : JPL#47

 
 [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)