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Stellar Occultation by (170) Maria on 2026-09-17 (18:58:01 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] : ae227000-d9b0-11f1-43f3-07e8e17f76c6 [observed]

 Occultation Date + Time   : 2026-09-17 at 18:58:01 UT +/- 0.01 min  [1]
 Object Designation        : (170) Maria
 Star Designation          : GDR3 2815769671516121344
 Star Coordinates (ICRF)   : RA = 23 09 22.9747, DE = +15 02 48.590  [2]
 Star Magnitudes           : G = 11.63 mag, RP = 10.96 mag, BP = 12.15 mag
 Object Magnitude          : V = 12.94 mag
 Estimated Magnitude Drop  : 1.6 mag
 Estimated Max. Duration   : 3.8 sec
 Speed of the shadow       : 11.8 km/s
 Object Mean Diameter      : 44.3 km  (src: astorb) => apparent = 38 mas
 Apparent Motion           : 0.6033 arcs/min @ PA = 259 deg
 Horizontal Parallax       : 5.4510 arcs
 Dynamical Class           : MBA
 Elongation to Moon & Sun  : 102° (sunlit = 40%), Sun = 161°
 Cross-track uncertainty   : 2.3 mas = 2 km = 0.06 path-width (1-sig)
 RUWE and duplicate source : 0.95 mas, dup.src = 0  (0:false, 1:true)

 Ephemeris Reference       : JPL80
 Note                      : FP:true

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


More Data and Informations
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