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

Stellar Occultation by (4293) Masumi on 2026-04-01 (20:18:59 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] : e99ce150-341b-11f1-6999-f231dbb7fcc5 [asteroids]

 Occultation Date + Time   : 2026-04-01 at 20:18:59 UT +/- 0.0 min  [1]
 Object Designation        : (4293) Masumi
 Star Designation          : GDR3 3439689945586297216
 Star Coordinates (ICRF)   : RA = 06 18 34.6183, DE = +32 18 09.993  [2]
 Star Magnitudes           : G = 12.99 mag, RP = 12.45 mag, BP = 13.36 mag
 Object Magnitude          : V = 16.76 mag
 Estimated Magnitude Drop  : 3.8 mag
 Estimated Max. Duration   : 0.5 sec
 Speed of the shadow       : 23.7 km/s
 Object Mean Diameter      : 11.4 km  (src: astorb) => apparent = 8 mas
 Apparent Motion           : 0.9800 arcs/min @ PA = 95 deg
 Horizontal Parallax       : 4.3900 arcs
 Dynamical Class           : MBA
 Elongation to Moon & Sun  : 96° (sunlit = 100%), Sun = 82°
 Cross-track uncertainty   : 0.4 mas = 0 km = 0.05 path-width (1-sig)
 RUWE and duplicate source : 1.85 mas, dup.src = 0  (0:false, 1:true)

 Ephemeris Reference       : JPL#64
 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)