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2023-08-04 / UCAC4 437-104810 / (1136) Mercedes

#OBSObserverOccMeth.Instr.CC TSRCUT1UT2UT3UT4UT2EUT3EDur.Chrd
1 show Daniel Antuszewicz O- VID M200 PL NTP 00:07:56 00:09:54
2 show Wojciech Burzynski O- VID M254 PL GPS 00:06:44 00:10:09
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: sodis

Available (probably) matching predictions (click on the link to switch):
JPL#78 : e7859060-ddb3-11f0-547e-b30bbe2ff3ba [db: observed]

Using prediction e7859060-ddb3-11f0-547e-b30bbe2ff3ba for map and profile fit

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Map with groundtrack and observer stations

Event Details
 Occultation UUID [and DB] : e7859060-ddb3-11f0-547e-b30bbe2ff3ba [observed]

 Occultation Date + Time   : 2023-08-04 at 00:17:30 UT +/- 0.0 min  [1]
 Object Designation        : (1136) Mercedes
 Orbit Class               : MBA
 Star Designation          : GDR3 4223546735813693312
 Star Coordinates (ICRF)   : RA = 20 06 43.2840, DE = -02 40 32.830  [2]
 Star Magnitudes           : G = 14.55 mag, RP = 13.85 mag, BP = 15.09 mag
 Object Magnitude          : V = 13.68 mag
 Estimated Magnitude Drop  : 0.4 mag
 Estimated Max. Duration   : 3.6 sec
 Object Mean Diameter      : 25.3 km  (src: astorb)
 Speed of the shadow       : 7.1 km/s
 Elongation to Moon & Sun  : 45° (sunlit = 93%), Sun = 161°
 Cross-track uncertainty   : 0.7 mas = 0 km = 0.02 path-width (1-sig)
 RUWE and duplicate source : 1.07 mas, dup.src = 0  (0:false, 1:true)

 Ephemeris Reference       : JPL#78
 Note                      : FP:true

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

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