2025-11-25 / UCAC4 491-008156 / (49557) 1999 CQ91
# OBS Observer Occ Meth. Instr. CC
TSRC UT1 UT2 UT3 UT4 UT2E UT3E Dur. Chrd
1
show Simon Kidd
O+
VID
M350
GB
GPS
23:25:30
23:26:03.669
23:26:04.046
23:27:45
0.018
0.018
0.38
4.6
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 c3d91470-ddb8-11f0-547e-7bcdc7ef9fac for map and profile fit
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Event Details
Occultation UUID [and DB] : c3d91470-ddb8-11f0-547e-7bcdc7ef9fac [observed]
Occultation Date + Time : 2025-11-25 at 23:25:24 UT +/- 0.01 min [1]
Object Designation : (49557) 1999 CQ91
Orbit Class : MBA
Star Designation : GDR3 3292427719007630336
Star Coordinates (ICRF) : RA = 04 38 44.5292, DE = +08 05 46.108 [2]
Star Magnitudes : G = 11.66 mag, RP = 10.07 mag, BP = 14.57 mag
Object Magnitude : V = 18.3 mag
Estimated Magnitude Drop : 6.6 mag
Estimated Max. Duration : 0.4 sec
Object Mean Diameter : 5.2 km (src: astorb)
Speed of the shadow : 12.2 km/s
Elongation to Moon & Sun : 121° (sunlit = 27%), Sun = 165°
Cross-track uncertainty : 1.1 mas = 1 km = 0.30 path-width (1-sig)
RUWE and duplicate source : 0.92 mas, dup.src = 0 (0:false, 1:true)
Ephemeris Reference : JPL#52
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)
