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Stellar Occultation by (880) Herba on 2026-06-26 (23:21:22 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] : 3565adb0-33d6-11f1-6999-97d3ffe6fd24 [asteroids]

 Occultation Date + Time   : 2026-06-26 at 23:21:22 UT +/- 0.01 min  [1]
 Object Designation        : (880) Herba
 Star Designation          : GDR3 4096474665228574848
 Star Coordinates (ICRF)   : RA = 18 22 51.8270, DE = -17 48 45.215  [2]
 Star Magnitudes           : G = 13.35 mag, RP = 12.75 mag, BP = 13.77 mag
 Object Magnitude          : V = 14.75 mag
 Estimated Magnitude Drop  : 1.7 mag
 Estimated Max. Duration   : 2.9 sec
 Speed of the shadow       : 12.5 km/s
 Object Mean Diameter      : 36.0 km  (src: astorb) => apparent = 30 mas
 Apparent Motion           : 0.6300 arcs/min @ PA = 291 deg
 Horizontal Parallax       : 5.3570 arcs
 Dynamical Class           : MBA
 Elongation to Moon & Sun  : 35° (sunlit = 92%), Sun = 174°
 Cross-track uncertainty   : 1.0 mas = 1 km = 0.03 path-width (1-sig)
 RUWE and duplicate source : 0.82 mas, dup.src = 0  (0:false, 1:true)

 Ephemeris Reference       : JPL#71
 Note                      : FP:true

 Object is a <Gaia mass determination> target !

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


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