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Stellar Occultation by (856) Backlunda on 2023-07-15 (00:14:45 UT)

CTU: Cross-track uncertainty (zero means: use the nominal prediction value, see event details below). Offsets and CTU all in mas.


Event Details
 Occultation UUID [and db] : ee5c8380-c338-11ef-5276-2e707d35a8ac [observed]

 Occultation Date + Time   : 2023-07-15 at 00:14:45 UT +/- 0.0 min  [1]
 Object Designation        : (856) Backlunda
 Star Designation          : GDR3 4101968645591127680
 Star Coordinates (ICRF)   : RA = 18 47 54.0482, DE = -14 33 55.450  [2]
 Star Magnitudes           : G = 12.51 mag, RP = 11.04 mag, BP = 15.46 mag
 Object Magnitude          : V = 13.98 mag
 Estimated Magnitude Drop  : 1.7 mag
 Estimated Max. Duration   : 4.7 sec
 Object Mean Diameter      : 52.0 km  (src: astorb)
 Orbital Class             : MBA
 Speed of the shadow       : 11.2 km/s
 Elongation to Moon & Sun  : 156° (sunlit = 7%), Sun = 167°
 Cross-track uncertainty   : 0.5 mas = 0 km = 0.01 path-width (1-sig)
 RUWE and duplicate source : 1.0 mas, dup.src = 0  (0:false, 1:true)

 Ephemeris Reference       : JPL#104

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


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