2025-09-12 / UCAC4 421-104440 / (42712) 1998 QX28
# OBS Observer Occ Meth. Instr. CC
TSRC UT1 UT2 UT3 UT4 UT2E UT3E Dur. Chrd
1
show Andreas Schweizer
O-
VID
M250
CH
GPS
21:07:33
::
::
21:08:33
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 6b27a7c0-ddb7-11f0-547e-a88e38e67b7b for map and profile fit
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Event Details
Occultation UUID [and DB] : 6b27a7c0-ddb7-11f0-547e-a88e38e67b7b [observed]
Occultation Date + Time : 2025-09-12 at 21:14:45 UT +/- 0.06 min [1]
Object Designation : (42712) 1998 QX28
Orbit Class : MBA
Star Designation : GDR3 4253982076755635712
Star Coordinates (ICRF) : RA = 18 55 40.6565, DE = -05 56 29.116 [2]
Star Magnitudes : G = 13.3 mag, RP = 12.0 mag, BP = 15.26 mag
Object Magnitude : V = 20.05 mag
Estimated Magnitude Drop : 6.7 mag
Estimated Max. Duration : 0.5 sec
Object Mean Diameter : 4.3 km (src: astorb)
Speed of the shadow : 9.5 km/s
Elongation to Moon & Sun : 131° (sunlit = 68%), Sun = 113°
Cross-track uncertainty : 0.4 mas = 0 km = 0.18 path-width (1-sig)
RUWE and duplicate source : 1.22 mas, dup.src = 0 (0:false, 1:true)
Ephemeris Reference : JPL#36
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)
