2024-07-25 / UCAC4 331-139820 / (9031) 1989 WG4
# OBS Observer Occ Meth. Instr. CC
TSRC UT1 UT2 UT3 UT4 UT2E UT3E Dur. Chrd
1
show Peter Delincak
O-
VID
M400
SK
NTP
20:54:53
20:57:42
UT1/UT4: Begin/End of observation | UT2/UT3: Begin/End of occultation | Dur: Reported duration in seconds | Chrd: Corresponding chord length in km |
More 1 observation found in db: sodis
Available (probably) matching predictions (click on the link to switch):
Using prediction 323a5c70-ddb5-11f0-547e-e16cee9e1147 for map and profile fit
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Event Details
Occultation UUID [and DB] : 323a5c70-ddb5-11f0-547e-e16cee9e1147 [observed]
Occultation Date + Time : 2024-07-25 at 21:07:08 UT +/- 0.0 min [1]
Object Designation : (9031) 1989 WG4
Orbit Class : MBA
Star Designation : GDR3 4065545020817298048
Star Coordinates (ICRF) : RA = 18 17 42.0615, DE = -23 50 45.671 [2]
Star Magnitudes : G = 13.29 mag, RP = 12.37 mag, BP = 14.17 mag
Object Magnitude : V = 17.62 mag
Estimated Magnitude Drop : 4.3 mag
Estimated Max. Duration : 0.6 sec
Object Mean Diameter : 4.7 km (src: astorb)
Speed of the shadow : 7.7 km/s
Elongation to Moon & Sun : 90° (sunlit = 75%), Sun = 151°
Cross-track uncertainty : 0.3 mas = 0 km = 0.06 path-width (1-sig)
RUWE and duplicate source : 0.9 mas, dup.src = 0 (0:false, 1:true)
Ephemeris Reference : JPL#67
Note : FP:true
[1] time t0 of closest geocentric approach c/a, [2] including proper motion until t0
(If error 404: link not valid which means no data available)
