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Stellar Occultation by (315869) 2008 HH70 on 2025-09-12 (18:20:31 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] : 6b113990-ddb7-11f0-547e-1d5cfa6fb24c [observed]

 Occultation Date + Time   : 2025-09-12 at 18:20:31 UT +/- 0.1 min  [1]
 Object Designation        : (315869) 2008 HH70
 Star Designation          : GDR3 1753534786460790272
 Star Coordinates (ICRF)   : RA = 20 20 04.3982, DE = +10 15 58.362  [2]
 Star Magnitudes           : G = 11.98 mag, RP = 11.16 mag, BP = 12.7 mag
 Object Magnitude          : V = 20.52 mag
 Estimated Magnitude Drop  : 8.5 mag
 Estimated Max. Duration   : 0.2 sec
 Speed of the shadow       : 12.4 km/s
 Object Mean Diameter      : 3.0 km  (src: astorb) => apparent = 2 mas
 Apparent Motion           : 0.4233 arcs/min @ PA = 197 deg
 Horizontal Parallax       : 3.6190 arcs
 Dynamical Class           : MBA
 Elongation to Moon & Sun  : 103° (sunlit = 69%), Sun = 132°
 Cross-track uncertainty   : 2.3 mas = 4 km = 1.35 path-width (1-sig)
 RUWE and duplicate source : 0.91 mas, dup.src = 0  (0:false, 1:true)

 Ephemeris Reference       : JPL#38
 Note                      : FP:true

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


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