UT1/UT4: Begin/End of observation | UT2/UT3: Begin/End of occultation | Dur: Reported duration in seconds | Chrd: Corresponding chord length in km |
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1 observation found in db: euraster
Available (probably) matching predictions (click on the link to switch):
Q: model quality flag (0-5, 5=highest) | P: rotation period | λ,β: ecl. lon. and lat. of spin axis (J2000) | JD: initial time (epoch) | φ0: initial rotation angle for JD0
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Map with groundtrack and observer stations
Event Details
Occultation UUID [and DB] : e2dda266-5fbe-42a2-98bc-c26b1f1a9398 [observed]
Occultation Date + Time : 2021-08-09 at 20:47:40 UT +/- 0.02 min [1]
Object Designation : (267) Tirza
Orbit Class : MBA
Star Designation : GDR3 6050359947877160576
Star Coordinates (ICRF) : RA = 16 16 52.0514, DE = -23 21 38.038 [2]
Star Magnitudes : G = 15.37 mag, RP = 14.59 mag, BP = 16.02 mag
Object Magnitude : V = 14.82 mag
Estimated Magnitude Drop : 0.5 mag
Estimated Max. Duration : 6.0 sec
Object Mean Diameter : 53 km (src: astorb)
Speed of the shadow : 8.8 km/s
Elongation to Moon & Sun : 93° (sunlit = 2%), Sun = 109°
Cross-track uncertainty : 2.0 mas = 2 km = 0.05 path-width (1-sig)
RUWE and duplicate source : 1.05 mas, dup.src = 0 (0:false, 1:true)
Ephemeris Reference : JPL#130
[1] time t0 of closest geocentric approach c/a, [2] including proper motion until t0
