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2021-03-19 / HIP 61099 / (1048) Feodosia

#OBSObserverOccMeth.Instr.CC TSRCUT1UT2UT3UT4UT2EUT3EDur.Chrd
1 show Tamas Tordai O+ CCD M150 HU NTP+ 23:18:00 23:28:25.01 23:28:31.54 23:37:00 0.64 0.65 6.53 68.6
2 show Bernd Gaehrken O+ VID L48 DE RAD+ 23:25:00 23:29:18.52 23:29:24.40 23:30:51 0.25 0.25 5.88 61.7
3 show Peter Slansky O+ CCD L80 DE RAD+ 23:26:48 23:29:17.70 23:29:24.00 23:31:26 0.02 0.02 6.30 66.1
4 show Eberhard Bredner O+ VID L100 DE GPS++ 23:26:58 23:29:42.32 23:29:48.08 23:32:05 0.16 0.16 5.76 60.5
5 show Arnaud Leroy O+ CCD M200 FR GPS++ 23:29:00 23:30:20.71 23:30:21.64 23:32:00 0.03 0.03 0.93 9.8
6 show Eric Vauthrin O+ VID M254 FR GPS++ 23:23:14 23:30:22.56 23:30:28.64 23:38:14 0.02 0.02 6.08 63.8
UT1/UT4: Begin/End of observation | UT2/UT3: Begin/End of occultation | Dur: Reported duration in seconds | Chrd: Corresponding chord length in km | More

6 observations found in db: euraster

Available (probably) matching predictions (click on the link to switch):
JPL#124 : 298997ec-d70d-4e47-809e-6d437f9ef09a [db: observed]

Using prediction 298997ec-d70d-4e47-809e-6d437f9ef09a 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:
Size = 90 x 39 km
a',b' = 45.0, 19.4 km
X0,Y0 = -515.5, -3.3 km
Mean diameter = 59 km

From 6 chords (VID,CCD)








You can enter space separated chord numbers (example: 11 4 8) or a method like VIS to ignore all visual timings, or a time source like RAD and NTP (but not GPS).
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Map with groundtrack and observer stations

Event Details 
 Occultation UUID [and DB] : 298997ec-d70d-4e47-809e-6d437f9ef09a [observed]

 Occultation Date + Time   : 2021-03-19 at 23:27:47 UT +/- 0.01 min  [1]
 Object Designation        : (1048) Feodosia
 Orbit Class               : MBA
 Star Designation          : GDR3 3949377704625720192
 Star Coordinates (ICRF)   : RA = 12 31 18.2625, DE = +20 13 00.544  [2]
 Star Magnitudes           : G = 7.69 mag, RP = 7.09 mag, BP = 8.11 mag
 Object Magnitude          : V = 13.07 mag
 Estimated Magnitude Drop  : 5.4 mag
 Estimated Max. Duration   : 6.7 sec
 Object Mean Diameter      : 70 km  (src: astorb)
 Speed of the shadow       : 10.5 km/s
 Elongation to Moon & Sun  : 106° (sunlit = 35%), Sun = 158°
 Cross-track uncertainty   : 5.3 mas = 5 km = 0.08 path-width (1-sig)
 RUWE and duplicate source : 1.27 mas, dup.src = 0  (0:false, 1:true)

 Ephemeris Reference       : JPL#124

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

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