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2020-10-29 / 4UC 485-028891 / (313) Chaldaea

#OBSObserverOccMeth.Instr.CC TSRCUT1UT2UT3UT4UT2EUT3EDur.Chrd
1 show Simon Kidd O+ CCD M350 UK GPS++ 01:35:00 01:36:05.09 01:36:13.12 01:37:30 0.02 0.02 8.03 83.5
2 show Malcolm Jennings O- VID M276 UK 01:31:00 01:39:38
3 show Tim Haymes O- CCD M279 UK 01:34:10 01:38:10
UT1/UT4: Begin/End of observation | UT2/UT3: Begin/End of occultation | Dur: Reported duration in seconds | Chrd: Corresponding chord length in km | More

3 observations found in db: euraster

Available (probably) matching predictions (click on the link to switch):
JPL#117 : ba4a7290-508a-4a3b-8f9c-220036144a90 [db: observed]
JPL#117 : d5c56c8e-f386-4d8c-8c7a-a2c35003e976 [db: observed]
JPL#117 : 48a09dc5-d396-4e3b-ab62-2d82aa8a6457 [db: observed]

Using prediction ba4a7290-508a-4a3b-8f9c-220036144a90 for map and profile fit

Get observations as KML file (reduced site location resolution)

Sky projection (artificial light) for occ. time: 2020-10-29, 01:36 UT (JD = 2459151.567)

DAMITQP (h)λ, βJD0JD-JD0φ0VersionModifiedVol-equiv DCmnt
# 1223None8.390 218°, 29° 2.443125e616026.60.0° NoneNone not scaled 2016-01-04
# 1224None8.390 44°, 11° 2.443125e616026.60.0° NoneNone not scaled 2016-01-04
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] : ba4a7290-508a-4a3b-8f9c-220036144a90 [observed]

 Occultation Date + Time   : 2020-10-29 at 01:44:01 UT +/- 0.01 min  [1]
 Object Designation        : (313) Chaldaea
 Orbit Class               : MBA
 Star Designation          : GDR3 3132941873775081600
 Star Coordinates (ICRF)   : RA = 06 50 20.4071, DE = +06 49 21.775  [2]
 Star Magnitudes           : G = 11.47 mag, RP = 10.95 mag, BP = 11.83 mag
 Object Magnitude          : V = 12.88 mag
 Estimated Magnitude Drop  : 1.7 mag
 Estimated Max. Duration   : 9.2 sec
 Object Mean Diameter      : 96 km  (src: astorb)
 Speed of the shadow       : 10.4 km/s
 Elongation to Moon & Sun  : 93° (sunlit = 94%), Sun = 112°
 Cross-track uncertainty   : 0.7 mas = 0 km = 0.01 path-width (1-sig)
 RUWE and duplicate source : 0.81 mas, dup.src = 0  (0:false, 1:true)

 Ephemeris Reference       : JPL#117

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

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