2025-12-01 / TYC 4806-00060-1 / (74517) 1999 FU31
# OBS Observer Occ Meth. Instr. CC
TSRC UT1 UT2 UT3 UT4 UT2E UT3E Dur. Chrd
1
show Marc Serrau
O-
VID
T400
FR
NTP
04:41:27
::
::
04:43:27
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 c9e4c760-ddb8-11f0-547e-b9592f78eb79 for map and profile fit
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Event Details
Occultation UUID [and DB] : c9e4c760-ddb8-11f0-547e-b9592f78eb79 [observed]
Occultation Date + Time : 2025-12-01 at 04:50:59 UT +/- 0.01 min [1]
Object Designation : (74517) 1999 FU31
Orbit Class : MBA
Star Designation : GDR3 3104759500969647488
Star Coordinates (ICRF) : RA = 06 31 52.6308, DE = -04 12 51.302 [2]
Star Magnitudes : G = 10.43 mag, RP = 10.09 mag, BP = 10.64 mag
Object Magnitude : V = 17.98 mag
Estimated Magnitude Drop : 7.6 mag
Estimated Max. Duration : 0.5 sec
Object Mean Diameter : 6.0 km (src: astorb)
Speed of the shadow : 11.2 km/s
Elongation to Moon & Sun : 85° (sunlit = 80%), Sun = 140°
Cross-track uncertainty : 0.4 mas = 0 km = 0.09 path-width (1-sig)
RUWE and duplicate source : 1.39 mas, dup.src = 0 (0:false, 1:true)
Ephemeris Reference : JPL#54
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)
