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Three misses were observed for this event with a small 16km object.
View the updated prediction.
Observers: 1 J. Broughton, Reedy Creek, QLD, Australia 2 D Gault, Wiruna, NSW, Australia 3 S Kerr,Glenlee, Qld, Australia 4 Pedicted
Discussion:
The circle above is plotted at the expected 16km diameter of Obendorfer. With no chords it is not possible to say where the actual path was.
Observational Data:
Observer's Name : John Broughton
TELESCOPE DETAILS:
Aperture (cm) : 25.4
Focal length (cm) : 169
Type (e.g. SCT; Newtonian) : SCT
Magnification : CCD drift-scan at 5 pps, 50'FOV
Observing site name : Reedy Creek, Gold Coast
Longitude (East +ve) : +153 23' 49"
Latitude (South -ve) : -28 06' 36"
Height above Sealevel (metres) : 66
Geodetic Datum (e.g.WDD84,NZ1949): AGD66
Sky Transparency (Delete two) : Poor
Star Image Stability (Delete two): Good
Other Conditions:
(Wind, Clouds, Lights, etc.): Observed through cloud
Time Source (e.g. WWV, VNG) : WWVH.
Recording method (e.g. tape) : Tape.
Could you see the Asteroid? : Only combined light monitored.
Approx. Limiting Magnitude : 11-13 (variable due to cloud)
| Estimated |
Universal Time | Reaction | Accuracy, Remarks
h m s | Time (sec) |
Started Observing : 12:32:45.2 n/a 0.2
Disappearance At : none
Reappearance At : none
Stopped Observing : 12:34:46.1 n/a 1.2
ADDITIONAL COMMENTS: The star was bright enough to be continuously visible
through the cloud.
_____________________________________
Observer's Name : David Gault
TELESCOPE DETAILS:
Aperture (cm) : 20
Focal length (cm) : 200 with f3.3 focal reducer
Type (e.g. SCT; Newtonian) : AltAz SCT
Magnification : N/A
Observing site name : Wiruna
Longitude (DD MM SS ; East +ve) : 149 46 48
Latitude (DD MM SS ; South -ve) : -33 00 48
Height above Sealevel (metres) : 1036.6
Geodetic Datum (e.g.WGS84,NZ1949): WGS84
Height Datum (if known) : WGS84
Sky Transparency (Delete two) : Fair
Star Image Stability (Delete two): Fair
Other Conditions :
Time Source (e.g. WWVH, GPS) : GPS-KIWI
Recording method (e.g. tape) : Video
Could you see the Asteroid? : NO
Approx. Limiting Magnitude : 11.3
| Estimated |
Universal Time | Reaction | Accuracy, Remarks
h m s | Time (sec) |
Started Observing : 12:32
Star and Object Merged :
Disappearance At : Miss
Estimated Closest Approach :
(if no D/R)
Reappearance At :
Star and Object Separated :
Stopped Observing : 12:40
_____________________________________
Observer's Name : Stephen Kerr
TELESCOPE DETAILS:
Aperture (cm) : 25
Focal length (cm) : 150
Type (e.g. SCT; Newtonian) : Newtonian
Observing site name : Glenlee
Longitude (DD MM SS ; East +ve) : +150 30' 01.4"
Latitude (DD MM SS ; South -ve) : -23 16' 10.1"
Height above Sealevel (metres) : 50
Geodetic Datum (e.g.WGS84,NZ1949): WGS 1984
Height Datum (if known) : AHD
Sky Transparency (Delete two) : Good
Star Image Stability (Delete two): Good
Other Conditions:
(Wind, Clouds, Lights, etc.): Severe wind shake.
Time Source (e.g. WWVH, GPS) : GPS - KIWI OSD
Recording method (e.g. tape) : Video - GSTAR EX Camera
Could you see the Asteroid? : No
Approx. Limiting Magnitude : 11.0
| Estimated |
Universal Time | Reaction | Accuracy, Remarks
h m s | Time (sec) |
Started Observing : 12:27:00.0
Stopped Observing : 12:37:00.0
Was your reaction time (also known as Personal Equation) subtracted from
any of the above timings? : Not Applicable
If YES, state value :
If you could tell, in which direction did the asteroid pass relative to
the star (Delete three) : Not observed
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