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

Stellar Occultation by (1207) Ostenia on 2025-10-28 (20:43:10 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] : a8382c60-ddb8-11f0-547e-6280cffffd47 [observed]

 Occultation Date + Time   : 2025-10-28 at 20:43:10 UT +/- 0.01 min  [1]
 Object Designation        : (1207) Ostenia
 Star Designation          : GDR3 2553382972577962624
 Star Coordinates (ICRF)   : RA = 00 52 41.2738, DE = +06 09 43.598  [2]
 Star Magnitudes           : G = 13.11 mag, RP = 12.62 mag, BP = 13.42 mag
 Object Magnitude          : V = 15.11 mag
 Estimated Magnitude Drop  : 2.2 mag
 Estimated Max. Duration   : 2.2 sec
 Speed of the shadow       : 10.6 km/s
 Object Mean Diameter      : 22.9 km  (src: astorb) => apparent = 17 mas
 Apparent Motion           : 0.4717 arcs/min @ PA = 265 deg
 Horizontal Parallax       : 4.7060 arcs
 Dynamical Class           : MBA
 Elongation to Moon & Sun  : 78° (sunlit = 42%), Sun = 159°
 Cross-track uncertainty   : 1.8 mas = 2 km = 0.11 path-width (1-sig)
 RUWE and duplicate source : 3.27 mas, dup.src = 0  (0:false, 1:true)

 Ephemeris Reference       : JPL74
 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)