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

Stellar Occultation by (38263) 1999 RC20 on 2026-09-02 (20:45:09 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] : 9674d7a0-d9af-11f1-43f3-59685d7e28e7 [observed]

 Occultation Date + Time   : 2026-09-02 at 20:45:09 UT +/- 0.04 min  [1]
 Object Designation        : (38263) 1999 RC20
 Star Designation          : GDR3 6249491055671044224
 Star Coordinates (ICRF)   : RA = 16 17 10.1619, DE = -17 03 32.120  [2]
 Star Magnitudes           : G = 14.15 mag, RP = 13.41 mag, BP = 14.74 mag
 Object Magnitude          : V = 20.27 mag
 Estimated Magnitude Drop  : 6.1 mag
 Estimated Max. Duration   : 0.3 sec
 Speed of the shadow       : 16.9 km/s
 Object Mean Diameter      : 5.6 km  (src: astorb) => apparent = 2 mas
 Apparent Motion           : 0.4017 arcs/min @ PA = 103 deg
 Horizontal Parallax       : 2.5250 arcs
 Dynamical Class           : MBA
 Elongation to Moon & Sun  : 163° (sunlit = 66%), Sun = 85°
 Cross-track uncertainty   : 14.3 mas = 36 km = 6.45 path-width (1-sig)
 RUWE and duplicate source : 1.05 mas, dup.src = 0  (0:false, 1:true)

 Ephemeris Reference       : JPL43
 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)