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

Stellar Occultation by (242128) 2002 XA42 on 2023-08-04 (20:41:38 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] : e4518e80-ddb3-11f0-547e-4c809dd37535 [observed]

 Occultation Date + Time   : 2023-08-04 at 20:41:38 UT +/- 0.02 min  [1]
 Object Designation        : (242128) 2002 XA42
 Star Designation          : GDR3 4247590924808336896
 Star Coordinates (ICRF)   : RA = 20 09 07.6207, DE = +04 34 23.675  [2]
 Star Magnitudes           : G = 12.63 mag, RP = 12.15 mag, BP = 12.95 mag
 Object Magnitude          : V = 17.8 mag
 Estimated Magnitude Drop  : 5.2 mag
 Estimated Max. Duration   : 0.4 sec
 Speed of the shadow       : 10.3 km/s
 Object Mean Diameter      : 4.3 km  (src: astorb) => apparent = 4 mas
 Apparent Motion           : 0.6000 arcs/min @ PA = 286 deg
 Horizontal Parallax       : 6.2000 arcs
 Dynamical Class           : MBA
 Elongation to Moon & Sun  : 56° (sunlit = 86%), Sun = 155°
 Cross-track uncertainty   : 5.0 mas = 5 km = 1.20 path-width (1-sig)
 RUWE and duplicate source : 1.04 mas, dup.src = 0  (0:false, 1:true)

 Ephemeris Reference       : JPL37
 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)