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2022-02-08 / 4UC 480-042992 / (252) Clementina

#OBSObserverOccMeth.Instr.CC TSRCUT1UT2UT3UT4UT2EUT3EDur.Chrd
1 show Gregor Krannich O+ CCD M350 DE GPS++ 20:22:31 20:23:50.90 20:23:51.95 20:25:31 0.18 0.18 1.05 14.0
2 show Gregor Krannich O+ CCD M350 DE GPS++ 20:22:31 20:23:52.65 20:23:55.11 20:25:31 0.18 0.18 2.46 32.7
UT1/UT4: Begin/End of observation | UT2/UT3: Begin/End of occultation | Dur: Reported duration in seconds | Chrd: Corresponding chord length in km | More

2 observations found in db: euraster

Available (probably) matching predictions (click on the link to switch):
JPL#68 : f260b8f3-62d8-4adb-a491-a3c04c68f17d [db: observed]

Using prediction f260b8f3-62d8-4adb-a491-a3c04c68f17d for map and profile fit

Get observations as KML file (reduced site location resolution)

Ellipse and circular profile fits to the timings (chords)

 Auto-Fit Result:
Circular profile fit was not successful ...








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If the plot disappears, then there are less than 2 chords left (too much ignored, go back with browser).

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Sky projection (artificial light) for occ. time: 2022-02-08, 20:22 UT (JD = 2459619.349)

DAMITQP (h)λ, βJD0JD-JD0φ0VersionModifiedVol-equiv DCmnt
# 19121.510.862 121°, 46° 2.45111e68509.30.0° None2018-07-19 not scaled 2018-07-18
# 19131.510.862 307°, 59° 2.45111e68509.30.0° None2018-07-19 not scaled 2018-07-18
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] : f260b8f3-62d8-4adb-a491-a3c04c68f17d [observed]

 Occultation Date + Time   : 2022-02-08 at 20:19:22 UT +/- 0.02 min  [1]
 Object Designation        : (252) Clementina
 Orbit Class               : MBA
 Star Designation          : GDR3 3096457982017961728
 Star Coordinates (ICRF)   : RA = 08 15 26.8771, DE = +05 55 31.531  [2]
 Star Magnitudes           : G = 14.84 mag, RP = 14.24 mag, BP = 15.28 mag
 Object Magnitude          : V = 14.88 mag
 Estimated Magnitude Drop  : 0.8 mag
 Estimated Max. Duration   : 5.2 sec
 Object Mean Diameter      : 69 km  (src: astorb)
 Speed of the shadow       : 13.3 km/s
 Elongation to Moon & Sun  : 72° (sunlit = 53%), Sun = 160°
 Cross-track uncertainty   : 1.7 mas = 2 km = 0.04 path-width (1-sig)
 RUWE and duplicate source : 1.47 mas, dup.src = 0  (0:false, 1:true)

 Ephemeris Reference       : JPL#68

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

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