Observation by Simon Kidd: Asteroid (1654) Bojeva occulting UCAC 63...

Uploaded by

Simon Kidd

Observer

Simon Kidd

Observed

2022 Jan 29 - 23:50

Uploaded

2022 Jan 30 - 15:15

Objects

1654 Bojeva

Equipment

C14, ZWO ASI174MM camera, reducer, GPS receiver for laptop time syncing.

Exposure

111ms/9fps

Location

Cottered, Herts

Target name

Asteroid (1654) Bojeva

Title

Asteroid (1654) Bojeva occulting UCAC 638-038259

About this image

A short animation of last night's occultation of a mag 13.4 star. Asteroid Bojeva is not visible, but the occultation, which lasts approx 2.1s, is clear. Accurate timing enables extremely precise positioning of the asteroid and its orbit. Multiple observations from different locations can reveal the shape and size of the asteroid. 'Moons' of asteroids are occasionally discovered by this method, and also previously unknown double stars. BAA members have had a spectacular start to 2022, with many positive events recorded and submitted to the co-ordinating site 'Euraster.net' coordinated by Eric Frappa. More info from the 'Asteroids and Remote Planets' section.

Files associated with this observation

2022-01-29-2350_5_F0455-0540 SER playout_F01-86 Bojeva.gif (1.0 MB)

Like this image

Nick Hewitt, Eric Watkins, Grant Privett, Alex Pratt, David Basey, Davide Pistritto, Mattia Piccoli, Tim Haymes, Chris Hooker

Comments

Grant Privett, 2022 Jan 30 - 17:17 UTC

Nicely done. I'm curious, what GPS receiver are you using to sync the laptop time?

Simon Kidd, 2022 Jan 30 - 19:58 UTC

Thanks Grant, I use the 'LeoNTP' ...a small GPS time server that uses NTP to sync the laptop via 'Meinberg' software. (All cabled of course). Logged offset (GPS vs. Laptop clock) is around 0.2ms. (NTP over the internet is not recommended)

The box also has a 1PPS output which is used to drive an LED for an on-chip flash every second (for checking purposes).

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