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

Stellar Occultation by (164686) 1997 MW5 on 2025-08-12 (21:50:19 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] : 39ae6710-ddb7-11f0-547e-c2b7f76e4711 [observed]

 Occultation Date + Time   : 2025-08-12 at 21:50:19 UT +/- 0.1 min  [1]
 Object Designation        : (164686) 1997 MW5
 Star Designation          : GDR3 4203801186314115840
 Star Coordinates (ICRF)   : RA = 18 59 17.5625, DE = -08 08 46.312  [2]
 Star Magnitudes           : G = 13.62 mag, RP = 12.99 mag, BP = 14.04 mag
 Object Magnitude          : V = 20.51 mag
 Estimated Magnitude Drop  : 6.9 mag
 Estimated Max. Duration   : 0.3 sec
 Speed of the shadow       : 8.8 km/s
 Object Mean Diameter      : 2.4 km  (src: astorb) => apparent = 2 mas
 Apparent Motion           : 0.3450 arcs/min @ PA = 242 deg
 Horizontal Parallax       : 4.1890 arcs
 Dynamical Class           : MBA
 Elongation to Moon & Sun  : 81° (sunlit = 85%), Sun = 142°
 Cross-track uncertainty   : 25.7 mas = 39 km = 16.30 path-width (1-sig)
 RUWE and duplicate source : 2.25 mas, dup.src = 0  (0:false, 1:true)

 Ephemeris Reference       : JPL31
 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)