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Stellar Occultation by (21771) 1999 RQ211 on 2022-12-27 (19:56:54 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] : 400095b0-ddb3-11f0-547e-b9f7edfd7173 [observed]

 Occultation Date + Time   : 2022-12-27 at 19:56:54 UT +/- 0.01 min  [1]
 Object Designation        : (21771) 1999 RQ211
 Star Designation          : GDR3 0190354737266692480
 Star Coordinates (ICRF)   : RA = 05 30 42.5244, DE = +37 49 09.393  [2]
 Star Magnitudes           : G = 10.26 mag, RP = 9.78 mag, BP = 10.56 mag
 Object Magnitude          : V = 18.26 mag
 Estimated Magnitude Drop  : 8.0 mag
 Estimated Max. Duration   : 0.4 sec
 Speed of the shadow       : 10.5 km/s
 Object Mean Diameter      : 3.7 km  (src: astorb) => apparent = 3 mas
 Apparent Motion           : 0.5683 arcs/min @ PA = 250 deg
 Horizontal Parallax       : 5.7760 arcs
 Dynamical Class           : MBA
 Elongation to Moon & Sun  : 107° (sunlit = 26%), Sun = 161°
 Cross-track uncertainty   : 0.7 mas = 0 km = 0.21 path-width (1-sig)
 RUWE and duplicate source : 0.89 mas, dup.src = 0  (0:false, 1:true)

 Ephemeris Reference       : JPL#37
 Note                      : FP:true

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


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