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Perseid meteor 20200813_023736


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About this observation
Alex Pratt
Time of observation
13/08/2020 - 02:37
Perseid meteor 20200813_023736
Observing location
Leeds, West Yorkshire
IMX291 IP board camera 6mm f/0.95 lens
Watec 902H2 Ultimate camera 6mm f/0.75 lens
Raspberry Pi 3 model B+
RMS software
UFO Capture and Analyser
25 frames/sec (0.04s) - 50 fields/sec (0.02s) deinterlaced

During last month I built a Raspberry Pi video meteor system to compare the Global Meteor Network's RMS solution with that of the UFO Capture suite. It was ready for this month's Perseid meteor shower, although the poor weather reduced the number of meteors I was able to record. This is an example from last night when the sky transparency improved a little.

My RMS station UK000J and UFO station Leeds_SE are aligned on the same altitude and azimuth. In the attached image, the upper pic is from the 1280x720 pixels IMX291 IP board camera with a 6mm f/0.95 lens running RMS software on a Raspberry Pi 3 model B+. The lower pic is from the720x576 pixels Watec 902H2 Ultimate camera with a 6mm f/0.75 lens running UFO Capture on an old Windows 7 desktop. Both systems identified the meteor as a mag. 1 Perseid.

It was fun building the RMS system and it only cost around £160, compared with the ~£450 cost of purchasing a plug-and-play unit from GMN's partners, CMN (Croatian Meteor Network).

UFO Capture performs motion detection on the fly, whereas RMS records 10s blocks of frames then analyses them and it rejects any with fewer than 20 field stars. So, under non-optimal skies RMS can report fewer meteors than UFO. Both systems produce UFO Orbit-compatible CSV files but a time correction of -2.4s has to be applied to the RMS CSV file entries.

I was planning to replace my Leeds_SE UFO station with my RMS one but I would lose valuable meteor data. I like my Pi station and I will run both for the foreseeable future.

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