Observation details for MP ( 2531 ) Cambridge
By Star              UCAC4 337-203362
On 2017-09-01  at 17:53:39.0

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Observer   B. Loader
Location   Darfield
Longitude  +172:06
Latitude   -43:28
Altitude   210 m
Datum      WGS84
Telescope SCT including Cass and Mak
Aperture   25 cm
Seeing     Slight flickering Clear 
Camera Type  Watec 910BD    AAV-PAL       
Camera Delay 
Timing     GPS - time inserted Video with frame analysis
Disappearance  17:54:10.49
Reappearance   17:54:11.77
Comments: GAIA prediction: combined mag 12.9, expected d mag 2.6.  Event T max 1.8 sec, Pred time error 5s,  Prob of event 13%, Darfield at 0.4 sigma The light curve shows a clear event, ca 3.5 integrated frames and the correct sort of depth.   BUT it is ca 32 seconds late ca 6x predicted error.     KIWI-OSD reported no time error by re-boot after observation run.