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2024-09-08 / UCAC4 464-121528 / (266) Aline

#OBSObserverOccMeth.Instr.CC TSRCUT1UT2UT3UT4UT2EUT3EDur.Chrd
1 show Daniel Antuszewicz O+ VID M200 PL NTP 20:57:48 20:58:58.6 20:59:11.6 21:00:47 0.2 0.4 13.00 94.9
2 show Donatas Tamonis O+ VID M200 LT NTP 20:57:38 20:58:28.8 20:58:42.1 20:58:55 0.2 0.2 13.30 97.1
3 show Anton Zhdanov O+ VID M150 RU GPS 20:56:23 20:57:41.79 20:57:47.08 20:59:08 0.05 0.10 5.29 38.6
4 show Michel Turchenko O+ VID M150 RU GPS 20:56:34 20:57:41.5 20:57:45.81 20:58:40 0.3 0.2 4.31 31.5
UT1/UT4: Begin/End of observation | UT2/UT3: Begin/End of occultation | Dur: Reported duration in seconds | Chrd: Corresponding chord length in km | More

4 observations found in db: sodis

Available (probably) matching predictions (click on the link to switch):
JPL#136 : 1e1e7ba0-c357-11ef-5276-77d87f1f0c7b [db: observed]
JPL#134 : 68120880-8568-11ef-78cd-f23e7b57a0bd [db: asteroids]

Using prediction 68120880-8568-11ef-78cd-f23e7b57a0bd 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 = 110 x 89 km
a',b' = 55.0, 44.5 km
X0,Y0 = 1832.6, 28.9 km
Mean diameter = 99 km

From 4 chords (VID)








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Map with groundtrack and observer stations

Event Details 
 Occultation UUID [and DB] : 68120880-8568-11ef-78cd-f23e7b57a0bd [asteroids]

 Occultation Date + Time   : 2024-09-08 at 21:08:53 UT +/- 0.02 min  [1]
 Object Designation        : (266) Aline
 Orbit Class               : MBA
 Star Designation          : GDR3 4232837265465212416
 Star Coordinates (ICRF)   : RA = 20 37 59.8020, DE = +02 44 18.271  [2]
 Star Magnitudes           : G = 13.14 mag, RP = 12.65 mag, BP = 13.46 mag
 Object Magnitude          : V = 12.75 mag
 Estimated Magnitude Drop  : 0.6 mag
 Estimated Max. Duration   : 14.9 sec
 Object Mean Diameter      : 109 km  (src: astorb)
 Speed of the shadow       : 7.3 km/s
 Elongation to Moon & Sun  : 85° (sunlit = 28%), Sun = 141°
 Cross-track uncertainty   : 1.7 mas = 2 km = 0.02 path-width (1-sig)
 RUWE and duplicate source : 0.97 mas, dup.src = 0  (0:false, 1:true)

 Ephemeris Reference       : JPL#134

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

More Data and Informations
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