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2019-02-24 / TYC 2963-01870-1 / (2269) Efremiana

#OBSObserverOccMeth.Instr.CC TSRCUT1UT2UT3UT4UT2EUT3EDur.Chrd
1 show Tomas Janik O+ VID M153 CZ GPS++ 20:36:23 20:38:05.11 20:38:10.55 20:40:26 0.16 0.16 5.44 28.3
2 show F. Van Den Abbeel O- VID M200 BE 20:39:00 20:41:00
3 show Roland Boninsegna O- VID M406 BE 20:39:31 20:43:12
4 show Oliver Kloes O- VID M254 DE 20:38:16 20:40:30
5 show O. Schreurs et al O- VID M280 BE 20:38:00 20:42:01
6 show Peter Lindner O- VID M305 DE 20:35:31 20:41:33
7 show Christian Weber O- VID M203 DE 20:36:01 20:39:54
8 show Nikolai Wuensche O- CCD M300 DE 20:35:23 20:41:28
UT1/UT4: Begin/End of observation | UT2/UT3: Begin/End of occultation | Dur: Reported duration in seconds | Chrd: Corresponding chord length in km | More

8 observations found in db: euraster

Available (probably) matching predictions (click on the link to switch):
JPL#52 : 8d9b324c-0e94-42f7-a94b-7e133281c848 [db: observed]

Using prediction 8d9b324c-0e94-42f7-a94b-7e133281c848 for map and profile fit

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Map with groundtrack and observer stations

Event Details
 Occultation UUID [and DB] : 8d9b324c-0e94-42f7-a94b-7e133281c848 [observed]

 Occultation Date + Time   : 2019-02-24 at 20:39:32 UT +/- 0.06 min  [1]
 Object Designation        : (2269) Efremiana
 Orbit Class               : MBA
 Star Designation          : GDR3 0920710077659230592
 Star Coordinates (ICRF)   : RA = 07 49 26.2519, DE = +39 40 08.745  [2]
 Star Magnitudes           : G = 12.15 mag, RP = 11.72 mag, BP = 12.42 mag
 Object Magnitude          : V = 15.93 mag
 Estimated Magnitude Drop  : 3.8 mag
 Estimated Max. Duration   : 4.4 sec
 Object Mean Diameter      : 23 km  (src: astorb)
 Speed of the shadow       : 5.2 km/s
 Elongation to Moon & Sun  : 112° (sunlit = 67%), Sun = 133°
 Cross-track uncertainty   : 0.3 mas = 0 km = 0.02 path-width (1-sig)
 RUWE and duplicate source : 0.98 mas, dup.src = 0  (0:false, 1:true)

 Ephemeris Reference       : JPL#52

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

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