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

Stellar Occultation by (2807) Karl Marx on 2025-08-29 (01:42:34 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] : 55815ba0-ddb7-11f0-547e-0e5cfd7d7159 [observed]

 Occultation Date + Time   : 2025-08-29 at 01:42:34 UT +/- 0.02 min  [1]
 Object Designation        : (2807) Karl Marx
 Star Designation          : GDR3 2565002370942046720
 Star Coordinates (ICRF)   : RA = 01 34 09.2955, DE = +05 59 45.553  [2]
 Star Magnitudes           : G = 12.7 mag, RP = 12.26 mag, BP = 12.99 mag
 Object Magnitude          : V = 17.84 mag
 Estimated Magnitude Drop  : 5.1 mag
 Estimated Max. Duration   : 2.7 sec
 Speed of the shadow       : 3.2 km/s
 Object Mean Diameter      : 8.4 km  (src: astorb) => apparent = 5 mas
 Apparent Motion           : 0.1233 arcs/min @ PA = 268 deg
 Horizontal Parallax       : 4.1250 arcs
 Dynamical Class           : MBA
 Elongation to Moon & Sun  : 160° (sunlit = 30%), Sun = 132°
 Cross-track uncertainty   : 1.0 mas = 1 km = 0.18 path-width (1-sig)
 RUWE and duplicate source : 0.94 mas, dup.src = 0  (0:false, 1:true)

 Ephemeris Reference       : JPL#62
 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)