2025-09-04 / UCAC4 359-161586 / (74546) 1999 JR61
# OBS Observer Occ Meth. Instr. CC
TSRC UT1 UT2 UT3 UT4 UT2E UT3E Dur. Chrd
1
show Simon Kidd
O+
VID
M350
GB
GPS
21:43:39
21:44:36.68
21:44:37.22
21:45:30
0.050
0.050
0.54
4.2
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 622c7600-ddb7-11f0-547e-dd54bfffe421 for map and profile fit
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Event Details
Occultation UUID [and DB] : 622c7600-ddb7-11f0-547e-dd54bfffe421 [observed]
Occultation Date + Time : 2025-09-04 at 21:41:10 UT +/- 0.01 min [1]
Object Designation : (74546) 1999 JR61
Orbit Class : MBA
Star Designation : GDR3 4098636167645571712
Star Coordinates (ICRF) : RA = 18 40 46.0350, DE = -18 14 42.503 [2]
Star Magnitudes : G = 13.65 mag, RP = 12.63 mag, BP = 14.72 mag
Object Magnitude : V = 19.19 mag
Estimated Magnitude Drop : 5.6 mag
Estimated Max. Duration : 0.3 sec
Object Mean Diameter : 1.90 km (src: astorb)
Speed of the shadow : 7.7 km/s
Elongation to Moon & Sun : 28° (sunlit = 90%), Sun = 117°
Cross-track uncertainty : 2.0 mas = 1 km = 0.89 path-width (1-sig)
RUWE and duplicate source : 1.0 mas, dup.src = 0 (0:false, 1:true)
Ephemeris Reference : JPL#41
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)
