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2021-04-27 / 4UC 550-023086 / (74) Galatea

#OBSObserverOccMeth.Instr.CC TSRCUT1UT2UT3UT4UT2EUT3EDur.Chrd
1 show Sven Andersson O+ CCD M355 DE GPS++ 21:20:00 21:20:15.54 21:20:19.14 21:21:00 0.48 0.48 3.60 127.1
2 show Christian Weber O+ VID M254 DE GPS++ 21:19:14 21:20:16.06 21:20:19.03 21:21:03 0.18 0.35 2.97 104.8
UT1/UT4: Begin/End of observation | UT2/UT3: Begin/End of occultation | Dur: Reported duration in seconds | Chrd: Corresponding chord length in km | More

2 observations found in db: euraster

Available (probably) matching predictions (click on the link to switch):
JPL#127 : 1b17aad5-2765-406b-8f5f-6838b0f33dad [db: observed]

Using prediction 1b17aad5-2765-406b-8f5f-6838b0f33dad 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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Event Details 
 Occultation UUID [and DB] : 1b17aad5-2765-406b-8f5f-6838b0f33dad [observed]

 Occultation Date + Time   : 2021-04-27 at 21:18:26 UT +/- 0.0 min  [1]
 Object Designation        : (74) Galatea
 Orbit Class               : MBA
 Star Designation          : GDR3 3374785155721375232
 Star Coordinates (ICRF)   : RA = 06 06 37.1179, DE = +19 57 28.096  [2]
 Star Magnitudes           : G = 12.4 mag, RP = 12.06 mag, BP = 12.51 mag
 Object Magnitude          : V = 14.54 mag
 Estimated Magnitude Drop  : 2.3 mag
 Estimated Max. Duration   : 3.4 sec
 Object Mean Diameter      : 119 km  (src: astorb)
 Speed of the shadow       : 35.3 km/s
 Elongation to Moon & Sun  : 137° (sunlit = 99%), Sun = 54°
 Cross-track uncertainty   : 0.6 mas = 1 km = 0.01 path-width (1-sig)
 RUWE and duplicate source : 6.36 mas, dup.src = 0  (0:false, 1:true)

 Ephemeris Reference       : JPL#127

 Object is a Gaia mass determination target !

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

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