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2021-12-29 / 4UC 602-017637 / (162) Laurentia

#OBSObserverOccMeth.Instr.CC TSRCUT1UT2UT3UT4UT2EUT3EDur.Chrd
1 show Matthieu Conjat O+ CCD M400 FR NTP 01:12:34 01:13:20.60 01:13:38.32 01:14:57 0.60 0.55 17.72 186.1
UT1/UT4: Begin/End of observation | UT2/UT3: Begin/End of occultation | Dur: Reported duration in seconds | Chrd: Corresponding chord length in km | More

1 observation found in db: euraster

Available (probably) matching predictions (click on the link to switch):
JPL#71 : b8070d7b-fef1-4d67-a058-3bb6e6e91159 [db: observed]
JPL#71 : ff7fedce-387d-4791-98cf-b004082e5cb9 [db: observed]
JPL#71 : 13cbcb81-5842-4531-a9a9-1e74465d2210 [db: observed]

Using prediction b8070d7b-fef1-4d67-a058-3bb6e6e91159 for map and profile fit

Get observations as KML file (reduced site location resolution)

Sky projection (artificial light) for occ. time: 2021-12-29, 01:13 UT (JD = 2459577.551)

DAMITQP (h)λ, βJD0JD-JD0φ0VersionModifiedVol-equiv DCmnt
# 325None11.869 139°, 64° 2.440625e618952.60.0° None2011-05-02 not scaled 2011-04-21
# 326None11.869 313°, 51° 2.440625e618952.60.0° None2011-05-02 not scaled 2011-04-21
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

   
Image size: 300px. Transparent image background for copy & paste

Map with groundtrack and observer stations

Event Details
 Occultation UUID [and DB] : b8070d7b-fef1-4d67-a058-3bb6e6e91159 [observed]

 Occultation Date + Time   : 2021-12-29 at 01:18:51 UT +/- 0.01 min  [1]
 Object Designation        : (162) Laurentia
 Orbit Class               : MBA
 Star Designation          : GDR3 0156180099105480320
 Star Coordinates (ICRF)   : RA = 05 10 35.8139, DE = +30 12 19.007  [2]
 Star Magnitudes           : G = 13.11 mag, RP = 12.48 mag, BP = 13.56 mag
 Object Magnitude          : V = 13.08 mag
 Estimated Magnitude Drop  : 0.7 mag
 Estimated Max. Duration   : 9.4 sec
 Object Mean Diameter      : 99 km  (src: astorb)
 Speed of the shadow       : 10.5 km/s
 Elongation to Moon & Sun  : 132° (sunlit = 29%), Sun = 160°
 Cross-track uncertainty   : 1.7 mas = 2 km = 0.02 path-width (1-sig)
 RUWE and duplicate source : 4.91 mas, dup.src = 0  (0:false, 1:true)

 Ephemeris Reference       : JPL#71

 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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