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2025-08-13 / UCAC4 680-017834 / (482087) 2010 HP21

#OBSObserverOccMeth.Instr.CC TSRCUT1UT2UT3UT4UT2EUT3EDur.Chrd
1 show Jiri Kubanek O- VID M303 CZ GPS 23:07:15 :: :: 23:09:15
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):
JPL#26 : 47729290-ddb7-11f0-547e-602ffffde5a9 [db: observed]

Using prediction 47729290-ddb7-11f0-547e-602ffffde5a9 for map and profile fit

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Map with groundtrack and observer stations

Event Details
 Occultation UUID [and DB] : 47729290-ddb7-11f0-547e-602ffffde5a9 [observed]

 Occultation Date + Time   : 2025-08-13 at 23:08:28 UT +/- 0.22 min  [1]
 Object Designation        : (482087) 2010 HP21
 Orbit Class               : JTRO
 Star Designation          : GDR3 0434099461370778112
 Star Coordinates (ICRF)   : RA = 03 01 50.0674, DE = +45 58 38.281  [2]
 Star Magnitudes           : G = 12.55 mag, RP = 12.0 mag, BP = 12.94 mag
 Object Magnitude          : V = 21.56 mag
 Estimated Magnitude Drop  : 9.0 mag
 Estimated Max. Duration   : 0.4 sec
 Object Mean Diameter      : 6.4 km  (src: astorb)
 Speed of the shadow       : 17.6 km/s
 Elongation to Moon & Sun  : 42° (sunlit = 75%), Sun = 85°
 Cross-track uncertainty   : 31.7 mas = 121 km = 19.00 path-width (1-sig)
 RUWE and duplicate source : 1.14 mas, dup.src = 0  (0:false, 1:true)

 Ephemeris Reference       : JPL#26
 Note                      : FP:true

 
 [1] time t0 of closest geocentric approach c/a, [2] including proper motion until t0

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