CORA test instance — changes here do not update the production service.
Collaborative Occultation
Resources and Archive
Occultations | Call for Observation | Observations | Reports | Info + Credits | JOA | Login

Stellar Occultation by (63891) 2001 SN4 on 2025-11-07 (17:41:38 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] : ae32c850-ddb8-11f0-547e-d30972ff4bb1 [observed] Occultation Date + Time : 2025-11-07 at 17:41:38 UT +/- 0.02 min [1] Object Designation : (63891) 2001 SN4 Star Designation : GDR3 0969698135337145472 Star Coordinates (ICRF) : RA = 06 04 49.3291, DE = +47 51 17.335 [2] Star Magnitudes : G = 14.78 mag, RP = 14.22 mag, BP = 15.17 mag Object Magnitude : V = 19.1 mag Estimated Magnitude Drop : 4.3 mag Estimated Max. Duration : 0.7 sec Speed of the shadow : 6.5 km/s Object Mean Diameter : 4.8 km (src: astorb) => apparent = 3 mas Apparent Motion : 0.2517 arcs/min @ PA = 329 deg Horizontal Parallax : 4.0950 arcs Dynamical Class : MBA Elongation to Moon & Sun : 24° (sunlit = 93%), Sun = 130° Cross-track uncertainty : 0.7 mas = 1 km = 0.23 path-width (1-sig) RUWE and duplicate source : 0.99 mas, dup.src = 0 (0:false, 1:true) Ephemeris Reference : JPL#50 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

Aladin Sky Atlas
Loading sky atlas…

Aladin Lite direct link (has Gaia overlay)