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Stellar Occultation by (275007) 2009 TW40 on 2021-12-19 (19:46:18 UT)



Event Details
 Occultation UUID [and db] : 2f0fbf50-55ba-4ce5-9354-82767d2cfd32 [observed]

 Occultation Date + Time   : 2021-12-19 at 19:46:18 UT +/- 0.9 min  [1]
 Object Designation        : (275007) 2009 TW40
 Star Designation          : GDR3 2512951353044180864
 Star Coordinates (ICRF)   : RA = 01 52 05.4089, DE = +04 14 02.668  [2]
 Star Magnitudes           : G = 13.83 mag, RP = 12.93 mag, BP = 14.67 mag
 Object Magnitude          : V = 20.56 mag
 Estimated Magnitude Drop  : 6.7 mag
 Estimated Max. Duration   : 2.4 sec
 Object Mean Diameter      : 7 km  (src: astorb)
 Orbital Class             : JTRO
 Speed of the shadow       : 2.9 km/s
 Elongation to Moon & Sun  : 68° (sunlit = 100%), Sun = 119°
 Cross-track uncertainty   : 16.7 mas = 50 km = 7.12 path-width (1-sig)
 RUWE and duplicate source : 1.12 mas, dup.src = 0  (0:false, 1:true)

 Ephemeris Reference       : JPL#24

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


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