Collaborative Occultation
Resources and Archive
CORA

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

Stellar Occultation by (91612) 1999 TJ30 on 2025-08-12 (20:27:01 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] : 3c9f6c80-ddb7-11f0-547e-4906b7bf8983 [observed]

 Occultation Date + Time   : 2025-08-12 at 20:27:01 UT +/- 0.08 min  [1]
 Object Designation        : (91612) 1999 TJ30
 Star Designation          : GDR3 4206476611637190912
 Star Coordinates (ICRF)   : RA = 19 30 45.1571, DE = -08 48 26.585  [2]
 Star Magnitudes           : G = 12.95 mag, RP = 12.07 mag, BP = 13.75 mag
 Object Magnitude          : V = 19.38 mag
 Estimated Magnitude Drop  : 6.4 mag
 Estimated Max. Duration   : 0.4 sec
 Speed of the shadow       : 7.5 km/s
 Object Mean Diameter      : 2.8 km  (src: astorb) => apparent = 2 mas
 Apparent Motion           : 0.3617 arcs/min @ PA = 239 deg
 Horizontal Parallax       : 5.1090 arcs
 Dynamical Class           : MBA
 Elongation to Moon & Sun  : 73° (sunlit = 85%), Sun = 150°
 Cross-track uncertainty   : 4.3 mas = 5 km = 1.92 path-width (1-sig)
 RUWE and duplicate source : 1.16 mas, dup.src = 0  (0:false, 1:true)

 Ephemeris Reference       : JPL#39
 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)