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Stellar Occultation by (122) Gerda on 2025-02-17 (03:02:14 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] : a95cf160-853b-11ef-78cd-df8a29ff22a7 [asteroids]

 Occultation Date + Time   : 2025-02-17 at 03:02:14 UT +/- 0.04 min  [1]
 Object Designation        : (122) Gerda
 Star Designation          : GDR3 3378862728953070208
 Star Coordinates (ICRF)   : RA = 06 40 41.3882, DE = +21 09 48.617  [2]
 Star Magnitudes           : G = 12.19 mag, RP = 11.76 mag, BP = 12.46 mag
 Object Magnitude          : V = 12.91 mag
 Estimated Magnitude Drop  : 1.2 mag
 Estimated Max. Duration   : 21.7 sec
 Object Mean Diameter      : 81.7 km  (src: astorb)
 Orbital Class             : MBA
 Speed of the shadow       : 3.8 km/s
 Elongation to Moon & Sun  : 100° (sunlit = 82%), Sun = 131°
 Cross-track uncertainty   : 1.0 mas = 1 km = 0.02 path-width (1-sig)
 RUWE and duplicate source : 0.91 mas, dup.src = 0  (0:false, 1:true)

 Ephemeris Reference       : JPL#67

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


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