Asteroidal Occultation Reports Database

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Complete Occultation Report plus Physical Data
Occultation Date       : 2008-06-06
Star Designation       : TYC 0291-00146-1
Object Designation     : (5) Astraea
Observation Result     : O+
Observation Method     : VIS
Instrument/Optics      : M150
Observer(s)            : Michael Krocil
Country Code           : CZ
Station Longitude      : E  15 52 33.4
Station Latitude       : N  49 12 24.8
Station Altitude [m]   : 475
Geodatic Datum         : WS
Time Source            : RAD++ 
Start Observation  UT1 : 20:55:00
End Observation    UT4 : 21:03:00
Disappearance      UT2 : 21:00:59.38 +- 0.20
Reappearance       UT3 : 21:01:15.91 +- 0.20
Duration [sec]         : 16.53 
Reaction Time UT2 (VIS): 0.50
Reaction Time UT3 (VIS): 0.50
Reaction time applied  : A
Comment                : D slightly gradual.
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LIGHTCURVE DATA        |
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Rotational Period [h]  : 16.800
Observed Amplitude mag : 0.10-0.30
Estimated (a/b) ratio  : 1.10-1.32
Light Curve Quality    : 4
Light Curve Note       : 
Ref.: Harris / Warner
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Diam.[km]  Max/Min/Code: 119.1 /  / 2
Ref.: D.Herald (Occult)
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More Data and Informations
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Notes
  • For the used data sources and all abbrerviations / codes used above look here & come back with browser's back button
  • The axis ratio (a/b) is estimated by : (a/b) >= 10**(0.4*(Observed Amplitude)).
  • Reaction time is applicable just for visual observations. 'A' means that RT was applied to the timings.
  • Duration is from observation report. If the value UT3-UT2 differs from that it is also given in red color.