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2023-12-16 / UCAC4 539-033041 / (7920) 1981 XM2

#OBSObserverOccMeth.Instr.CC TSRCUT1UT2UT3UT4UT2EUT3EDur.Chrd
1 show Stefano Sposetti O- VID M420 CH GPS 20:36:35 20:42:35
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#49 : abc2b599-8db3-4ac7-b412-e270b1972a26 [db: observed]
JPL#49 : 81a8de66-8e55-47c7-aa36-951a166fa4b1 [db: observed]
JPL#49 : 5229e781-d80c-42b1-8085-2aae116c103e [db: observed]

Using prediction abc2b599-8db3-4ac7-b412-e270b1972a26 for map and profile fit

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Event Details
 Occultation UUID [and DB] : abc2b599-8db3-4ac7-b412-e270b1972a26 [observed]

 Occultation Date + Time   : 2023-12-16 at 20:35:40 UT +/- 0.04 min  [1]
 Object Designation        : (7920) 1981 XM2
 Orbit Class               : MBA
 Star Designation          : GDR3 3358517434511869568
 Star Coordinates (ICRF)   : RA = 06 49 04.0336, DE = +17 42 06.804  [2]
 Star Magnitudes           : G = 12.45 mag, RP = 11.78 mag, BP = 12.96 mag
 Object Magnitude          : V = 16.49 mag
 Estimated Magnitude Drop  : 4.1 mag
 Estimated Max. Duration   : 0.7 sec
 Object Mean Diameter      : 7 km  (src: astorb)
 Speed of the shadow       : 10.0 km/s
 Elongation to Moon & Sun  : 144° (sunlit = 19%), Sun = 162°
 Cross-track uncertainty   : 5.7 mas = 5 km = 0.80 path-width (1-sig)
 RUWE and duplicate source : 0.94 mas, dup.src = 0  (0:false, 1:true)

 Ephemeris Reference       : JPL#49

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

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