2023-08-19 / UCAC4 423-137619 / (282198) 2001 UM166
# OBS Observer Occ Meth. Instr. CC
TSRC UT1 UT2 UT3 UT4 UT2E UT3E Dur. Chrd
1
show Peter Delincak
O-
VID
M400
SK
NTP
21:34:16
21:38:25
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 baa1bfa2-d670-44e9-8358-58870a23720e for map and profile fit
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Event Details
Occultation UUID [and DB] : baa1bfa2-d670-44e9-8358-58870a23720e [observed]
Occultation Date + Time : 2023-08-19 at 21:36:55 UT +/- 0.1 min [1]
Object Designation : (282198) 2001 UM166
Orbit Class : JTRO
Star Designation : GDR3 2671285769087860608
Star Coordinates (ICRF) : RA = 21 37 10.8118, DE = -05 29 57.095 [2]
Star Magnitudes : G = 13.9 mag, RP = 13.36 mag, BP = 14.27 mag
Object Magnitude : V = 19.6 mag
Estimated Magnitude Drop : 5.7 mag
Estimated Max. Duration : 0.6 sec
Object Mean Diameter : 10 km (src: astorb)
Speed of the shadow : 16.3 km/s
Elongation to Moon & Sun : 139° (sunlit = 11%), Sun = 172°
Cross-track uncertainty : 13.7 mas = 41 km = 4.18 path-width (1-sig)
RUWE and duplicate source : 0.98 mas, dup.src = 0 (0:false, 1:true)
Ephemeris Reference : JPL#26
[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)