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 (189753) 2001 YS127 on 2025-11-04 (19:37:57 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] : aaec28d0-ddb8-11f0-547e-ff7bdfb9b5f3 [observed] Occultation Date + Time : 2025-11-04 at 19:37:57 UT +/- 0.06 min [1] Object Designation : (189753) 2001 YS127 Star Designation : GDR3 2790336868053984384 Star Coordinates (ICRF) : RA = 01 03 06.2905, DE = +20 34 10.908 [2] Star Magnitudes : G = 8.86 mag, RP = 8.5 mag, BP = 9.07 mag Object Magnitude : V = 19.6 mag Estimated Magnitude Drop : 10.7 mag Estimated Max. Duration : 0.2 sec Speed of the shadow : 9.5 km/s Object Mean Diameter : 2.1 km (src: astorb) => apparent = 2 mas Apparent Motion : 0.5067 arcs/min @ PA = 239 deg Horizontal Parallax : 5.7010 arcs Dynamical Class : MBA Elongation to Moon & Sun : 13° (sunlit = 99%), Sun = 156° Cross-track uncertainty : 21.3 mas = 23 km = 11.35 path-width (1-sig) RUWE and duplicate source : 1.03 mas, dup.src = 0 (0:false, 1:true) Ephemeris Reference : JPL#35 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)