2025-02-04 / HIP 49770 / (20716) 1999 XG91
# OBS Observer Occ Meth. Instr. CC
TSRC UT1 UT2 UT3 UT4 UT2E UT3E Dur. Chrd
1
show William Stewart
O-
VID
M279
GB
GPS
21:45:43
21:47:43
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 c1dfa900-8b5b-11ef-78cd-598affb7f05c for map and profile fit
Map with groundtrack and observer stations
Occ by (20716) 1999 XG91 on 2025-02-04
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Event Details
Occultation UUID [and DB] : c1dfa900-8b5b-11ef-78cd-598affb7f05c [asteroids]
Occultation Date + Time : 2025-02-04 at 21:43:10 UT +/- 0.05 min [1]
Object Designation : (20716) 1999 XG91
Orbit Class : JTRO
Star Designation : GDR3 0745609694135561728
Star Coordinates (ICRF) : RA = 10 09 32.1341, DE = +31 35 12.908 [2]
Star Magnitudes : G = 9.36 mag, RP = 9.05 mag, BP = 9.53 mag
Object Magnitude : V = 18.89 mag
Estimated Magnitude Drop : 9.5 mag
Estimated Max. Duration : 0.9 sec
Object Mean Diameter : 17.0 km (src: astorb)
Speed of the shadow : 19.5 km/s
Elongation to Moon & Sun : 100° (sunlit = 45%), Sun = 160°
Cross-track uncertainty : 0.3 mas = 1 km = 0.06 path-width (1-sig)
RUWE and duplicate source : 1.06 mas, dup.src = 0 (0:false, 1:true)
Ephemeris Reference : JPL#46
[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)
