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2022-11-20 / 4UC 496-009883 / (1031) Arctica

#OBSObserverOccMeth.Instr.CC TSRCUT1UT2UT3UT4UT2EUT3EDur.Chrd
1 show Peter Nosal O+ CCD M250 SK NTP+ 21:23:03 21:24:33.44 21:24:37.10 21:26:06 0.17 0.17 3.66 50.5
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: euraster

Available (probably) matching predictions (click on the link to switch):
JPL#63 (23-01-08) : e93e058c-e87b-4ac8-90ec-d9c50edfdcde [db: observed]

Using prediction e93e058c-e87b-4ac8-90ec-d9c50edfdcde for map and profile fit


Map with groundtrack and observer stations

Event Details
 Occultation UUID [and DB] : e93e058c-e87b-4ac8-90ec-d9c50edfdcde [observed]

 Occultation Date + Time   : 2022-11-20 at 21:24:39 UT +/- 0.05 min  [1]
 Object Designation        : (1031) Arctica
 Star Designation          : GDR3 3290361977176928128
 Star Coordinates (ICRF)   : RA = 05 04 36.3163, DE = +09 03 47.348  [2]
 Star Magnitudes           : G = 14.94 mag, RP = 14.41 mag, BP = 15.29 mag
 Object Magnitude          : V = 14.11 mag
 Estimated Magnitude Drop  : 0.4 mag
 Estimated Max. Duration   : 5.5 sec
 Object Mean Diameter      : 76 km  (src: astorb+H10)
 Speed of the shadow       : 13.8 km/s
 Elongation to Moon & Sun  : 122° (sunlit = 12%), Sun = 158°
 Cross-track uncertainty   : 4.3 mas = 6 km = 0.09 path-width (1-sig)
 RUWE and duplicate source : 0.96 mas, dup.src = 0  (0:false, 1:true)

 Ephemeris Reference       : JPL#63 (23-01-08)

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

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