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):
| Map with groundtrack and observer stations |
|---|
| Event Details |
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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
|
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