Seven misses were recorded for this event. One miss is uncertain because of cloud.

View the IOTA update.

Observers:
  1(M) D Herald, Murrumbateman, New South Wales, Australia
  2(M) John Newman, Flynn, Australian Capital Territory, Australia      
  3(M) D&J Dunham, Lerida Estate, New South Wales, Australia 
  4(M) D&J Dunham, Collector, New South Wales, Australia
  5(M) D&J Dunham, Woologorang, New South Wales, Australia
  6(M) J Fenner, Aranda, Australian Capital Territory, Australia
  7(M) D Saunders, Holder, Australian Capital Territory, Australia
  8(P) Prediction- IOTA Feed                

         



       

Discussion:

The circle above is plotted at the expected diameter of 1985FF2, on the predicted path. All observations were to the south of the predicted path, and are consistent with it.

Observation 5 must be considered uncertain, as cloud obscured the star until almost the due time, leaving open the possibilty that the event would have been positive, but earlier than predicted, had the cloud not been present. Observation 5 is the closest to the predicted path.

Observational Data:

Observation details for MP ( 29127 ) 1985 FF2
By Star              HIP HIP8903
On 2015-12-27  at 11:45:18.0

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Observer   Dave Herald
Location   Murrumbateman
Longitude  +148:59
Latitude   -34:57
Altitude   594 m
Datum      WGS84
Telescope Newtonian
Aperture   40 cm
Seeing     Steady Clear 
Camera Type  Watec 910BD    PAL/CCIR      
Camera Delay 
Timing     GPS - time inserted Video with frame analysis

Missed

Comments:  Lightcurve from 11:43:31 to 11:46:59 by Tangra v3.5.3 using AperturePhotometry/AverageBackground. Analysis by AOTA v4.1.7.0. Report prepopulated by IOTA Reporting Add-in for OW ver.1.8

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Observer   John Newman
Location   Flynn, ACT, AU
Longitude  +149:02
Latitude   -35:11
Altitude   657 m
Datum      WGS84
Telescope other - specify below
Aperture   41 cm
Seeing     Slight flickering Clear 
Camera Type  Watec 910BD    PAL/CCIR      
Camera Delay 
Timing     GPS - time inserted Video with frame analysis

Missed

Comments:   Report prepopulated by IOTA Reporting Add-in for OW ver.1.8

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Observer   David and Joan Dunham
Location   Lerida Estate, NSW, AU
Longitude  +149:22
Latitude   -35:00
Altitude   691 m
Datum      WGS84
Telescope Refractor
Aperture    5 cm
Seeing     Slight flickering Clear 
Camera Type  PC164C-EX      NTSC/EIA      
Camera Delay 
Timing     GPS - time inserted Video, photo or photoelectric

Missed

Comments:  Remote unattended pre-pointed mighty mini Sta. #1 with Supercircuits PC164C-EX2 (KT&C KBC 650) camera & Canon ZR #S12, tape CN04. +29 km (west) of pred. center s. of Gurney VC rest area w. of M23 Hwy.

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Observer   David and Joan Dunham
Location   Collector, NSW, AU
Longitude  +149:26
Latitude   -34:55
Altitude   692 m
Datum      WGS84
Telescope Refractor
Aperture    5 cm
Seeing     Slight flickering Clear 
Camera Type  PC164C-EX      NTSC/EIA      
Camera Delay 
Timing     GPS - other linking Video, photo or photoelectric

Missed

Comments:  Remote unattended pre-pointed mighty mini Sta. #2 with Supercircuits PC164C-EX2 (KT&C KBC 650) camera & Canon ZR #28, tape AS18. +19 km (west) of pred. center n. of intersection of Collector Rd. & garbage tip rd. s.e. M23 Hwy. Canon ZR clock calibrated with IOTA-VTI before & after.

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Observer   David and Joan Dunham
Location   Woologorang, NSW, AU
Longitude  +149:32
Latitude   -34:51
Altitude   692 m
Datum      WGS84
Telescope Refractor
Aperture    5 cm
Seeing     Slight flickering Broken cloud 
Camera Type  PC164C-EX      NTSC/EIA      
Camera Delay 
Timing     GPS - time inserted Video, photo or photoelectric

Missed

Comments: There was probably a miss here, but unsure because the star was not visible behind thick cloud until 5s before pred. time, with 20s 1sigma error. Attended  pre-pointed mighty mini Sta. #3, Supercircuits PC164C-EX2 & Canon ZR #34, tape AS13. +9 km (w) of pred. ctr. N side Woologorang Rd w M23. Star vis. in cloud breaks-11hUT: 39:57-41:36; 42:10-29; 44:02-15; 45:14-47:06; 47:30-39; 47:47-48:00; 48:03-13; 48:19-49:20; 49:23-50; 50:15-51:57-stopped

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Observer   Jim Fenner
Location   Aranda, ACT, AU
Longitude  +149:04
Latitude   -35:15
Altitude   636 m
Datum      WGS84
Telescope Refractor
Aperture    5 cm
Seeing     Strong flickering Clear 
Camera Type  Other - List in Comments     PAL/CCIR      
Camera Delay 
Timing     other Video, photo or photoelectric

Missed

Comments:  "Videoed with a tele lens" is given in the email message, so the aperture is just a guess, & camera used to record was not reported.  +69 km (west) of predicted center.  Also watched visually with 7x50 binoculars. Cellphone timing assumed.

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Observer   David Saunders
Location   Holder, ACT, AU
Longitude  +149:02
Latitude   -35:20
Altitude   589 m
Datum      WGS84
Telescope no optical aid
Aperture    1 cm
Seeing     Slight flickering Clear 
Camera Type  Other - List in Comments                   
Camera Delay 
Timing     GPS - time inserted Visual, no PE applied

Missed

Comments:  Watched the 2.6-magnitude star (beta Arietis = Sheratan) without optical aid. +77 km (west) of predicted center.