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Stellar Occultation by (9031) 1989 WG4 on 2024-07-25 (21:09:04 UT)

Stellar Occultation by (9031) 1989 WG4 on 2024-07-25 (21:09:04 UT)https://astro.kretlow.de/cora/occultations/c863b680-c351-11ef-5276-9af265bbee48

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] : c863b680-c351-11ef-5276-9af265bbee48 [observed]

 Occultation Date + Time   : 2024-07-25 at 21:09:04 UT +/- 0.0 min  [1]
 Object Designation        : (9031) 1989 WG4
 Star Designation          : GDR3 4065545025177602688
 Star Coordinates (ICRF)   : RA = 18 17 41.8165, DE = -23 50 36.859  [2]
 Star Magnitudes           : G = 15.78 mag, RP = 15.18 mag, BP = 16.21 mag
 Object Magnitude          : V = 17.63 mag
 Estimated Magnitude Drop  : 2.0 mag
 Estimated Max. Duration   : 0.6 sec
 Object Mean Diameter      : 4.6 km  (src: astorb)
 Orbital Class             : MBA
 Speed of the shadow       : 7.7 km/s
 Elongation to Moon & Sun  : 90° (sunlit = 75%), Sun = 151°
 Cross-track uncertainty   : 0.5 mas = 0 km = 0.11 path-width (1-sig)
 RUWE and duplicate source : 1.01 mas, dup.src = 0  (0:false, 1:true)

 Ephemeris Reference       : JPL#60

 
 [1] time t0 of closest geocentric approach c/a, [2] including proper motion until t0


More Data and Informations
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(If error 404: link not valid which means no data available)


Interactive map
Occ by (9031) 1989 WG4 on 2024-07-25
Star = 15.78 G, Drop = 2.03 mag, Dur = 0.6 sec
RA = 18 17 41.8165, DE = -23 50 36.859 (t0)
+−
↦km
Unavailable
100 km
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Aladin Sky Atlas
18 17 41.817 -23 50 36.86
FoV: 29.96'
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