2023-08-24 / UCAC4 575-126296 / (387556) 2001 QW99
# OBS Observer Occ Meth. Instr. CC
TSRC UT1 UT2 UT3 UT4 UT2E UT3E Dur. Chrd
1
show Peter Delincak
O-
VID
M400
SK
NTP
22:50:32
22:54:42
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 f8d098b0-ddb3-11f0-547e-0061efbe4d78 for map and profile fit
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Event Details
Occultation UUID [and DB] : f8d098b0-ddb3-11f0-547e-0061efbe4d78 [observed]
Occultation Date + Time : 2023-08-24 at 22:53:49 UT +/- 0.07 min [1]
Object Designation : (387556) 2001 QW99
Orbit Class : MBA
Star Designation : GDR3 1798490449662782592
Star Coordinates (ICRF) : RA = 21 27 50.0485, DE = +24 48 30.826 [2]
Star Magnitudes : G = 14.2 mag, RP = 13.46 mag, BP = 14.81 mag
Object Magnitude : V = 19.64 mag
Estimated Magnitude Drop : 5.4 mag
Estimated Max. Duration : 0.3 sec
Object Mean Diameter : 2.9 km (src: astorb)
Speed of the shadow : 11.1 km/s
Elongation to Moon & Sun : 89° (sunlit = 56%), Sun = 143°
Cross-track uncertainty : 29.0 mas = 39 km = 13.51 path-width (1-sig)
RUWE and duplicate source : 1.04 mas, dup.src = 0 (0:false, 1:true)
Ephemeris Reference : JPL#25
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)
