Collaborative Occultation
Resources and Archive
CORA
Occultations | Observations | Reports | Info + Credits | JOA | Admin | Login

Stellar Occultation by (458749) 2011 QP74 on 2026-09-20 (01:58:04 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] : 34222dd0-d9b1-11f1-43f3-1663f9ef711f [observed]

 Occultation Date + Time   : 2026-09-20 at 01:58:04 UT +/- 0.12 min  [1]
 Object Designation        : (458749) 2011 QP74
 Star Designation          : GDR3 0944864978027347584
 Star Coordinates (ICRF)   : RA = 06 39 44.8908, DE = +38 43 33.832  [2]
 Star Magnitudes           : G = 13.8 mag, RP = 19.59 mag, BP = 20.07 mag
 Object Magnitude          : V = 21.86 mag
 Estimated Magnitude Drop  : 8.1 mag
 Estimated Max. Duration   : 0.3 sec
 Speed of the shadow       : 17.9 km/s
 Object Mean Diameter      : 6.0 km  (src: astorb) => apparent = 1 mas
 Apparent Motion           : 0.2650 arcs/min @ PA = 77 deg
 Horizontal Parallax       : 1.5750 arcs
 Dynamical Class           : JTRO
 Elongation to Moon & Sun  : 168° (sunlit = 62%), Sun = 80°
 Cross-track uncertainty   : 26.7 mas = 108 km = 18.02 path-width (1-sig)
 RUWE and duplicate source : 1.36 mas, dup.src = 0  (0:false, 1:true)

 Ephemeris Reference       : JPL19
 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
Loading sky atlas…
Aladin Lite direct link (has Gaia overlay)