2026-08-22 / UCAC4 509-004987 / (217853) 2001 QT56
# OBS Observer Occ Meth. Instr. CC
TSRC UT1 UT2 UT3 UT4 UT2E UT3E Dur. Chrd
1
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Stefano Sposetti
O-
VID
M420
CH
GPS
02:20:40
::
::
02:22:40
UT1/UT4: Begin/End of observation | UT2/UT3: Begin/End of occultation | Dur: Reported duration in seconds | Chrd: Corresponding chord length in km |
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1 observation found in db: sodis
Available (probably) matching predictions (click on the link to switch):
Using prediction 6849a5f0-d9ae-11f1-43f3-aafdfbef3673 for map and profile fit
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Event Details
Occultation UUID [and DB] : 6849a5f0-d9ae-11f1-43f3-aafdfbef3673 [observed]
Occultation Date + Time : 2026-08-22 at 02:25:26 UT +/- 0.04 min [1]
Object Designation : (217853) 2001 QT56
Orbit Class : MBA
Star Designation : GDR3 0016302463200535040
Star Coordinates (ICRF) : RA = 03 23 21.9669, DE = +11 41 09.426 [2]
Star Magnitudes : G = 11.1 mag, RP = 9.95 mag, BP = 12.47 mag
Object Magnitude : V = 20.42 mag
Estimated Magnitude Drop : 9.3 mag
Estimated Max. Duration : 0.4 sec
Object Mean Diameter : 4.9 km (src: astorb)
Speed of the shadow : 11.2 km/s
Elongation to Moon & Sun : 149° (sunlit = 69%), Sun = 97°
Cross-track uncertainty : 3.7 mas = 8 km = 1.79 path-width (1-sig)
RUWE and duplicate source : 1.38 mas, dup.src = 0 (0:false, 1:true)
Ephemeris Reference : JPL37
Note : FP:true
[1] time t0 of closest geocentric approach c/a, [2] including proper motion until t0
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