Observation by Alex Pratt: Video astrometry and photometry of PHA (...

Uploaded by

Alex Pratt

Observer

Alex Pratt

Observed

2022 Jan 27 - 18:42

Uploaded

2022 Jan 30 - 21:44

Objects

7482 1994 PC1

Equipment

C11 f/10 and f/3.3 focal reducer
Watec 910HX video camera
IOTA-VTI GPS 1PPS time inserter
OccuRec (recorder)
Tangra (astrometry)

Exposure

Video integrations between 0.08s and 0.64s

Location

Z92 (Bortle 7)

Target name

PHA (7482) 1994 PC1

Title

Video astrometry and photometry of PHA (7482) 1994 PC1

About this image

This Potentially Hazardous Asteroid (Apollo type) became visible from UK latitudes on January 18. The weather allowed me to record it on the following evening and on 3 other occasions up to Jan 27, when it was near Deneb. I didn't get any more data because it was getting lower in the NW sky, over neighbours' rooftops and was accompanied by breezy conditions, not conducive to good astrometry to mag 16.

NEODyS-2 uses MPC data to derive a Near Earth Object's residuals in RA, Dec, magnitude and a chi-squared data quality assessment. The diagram shows these residuals for observers using standard CCD/CMOS astrometry and my video astrometry (Z92). NEODyS magnitude residuals are obtained from observers' G, R and V estimates. In the chi-squared results, values nearer to 0 are assessed as being better quality.

Files associated with this observation

Video astrometry and photometry of (7482) 1994 PC1 - ARP.png (34.2 kB)

Like this image

Jeremy Shears, Eric Watkins, David Basey, Tim Haymes, Robin Leadbeater

Copyright of all images and other observations submitted to the BAA remains with the owner of the work. Reproduction of work by third parties is expressly forbidden without the consent of the copyright holder. By submitting images to this online gallery, you grant the BAA permission to reproduce them in any of our publications.

Registered charity no. 210769
Registered company no. 117572

For more information including contact details, click here.

Our Terms of Use are here.

Our Privacy Policy is here.