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Dome pointing calculator


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#1 nakbrooks

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Posted 20 October 2016 - 06:23 PM

Does anyone know of an online or downloadable calculator that will input telescope Alt/Az parameters and calculate the required dome Az (once configured with the dome and mount geometry).

This is obviously built-in to numerous programs, but I'm looking for a stand-alone calculator. I've found the equations, but they are beyond my programming capability.
Nigel Brooks
Stratis Observatory, Hautes Pyrénées, France.
http://www.facebook.com/stratisobservatory

#2 GeorgeCarey

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Posted 21 October 2016 - 08:28 AM

Sounds like a job for an Excel spreadsheet.

ASA DDM60Pro, homemade 8" and 10" reflectors, QSI 683 camera, Astrodon 5nm filters, Pulsar dome observatory. Website: http://www.geoastro.co.uk


#3 RamaSpaceShip

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Posted 21 October 2016 - 03:49 PM

Hi Nigel,

 

Please send me your equations by email.

This is not a big issue.

 

 

Best regards.

 

Bernard.



#4 GeorgeCarey

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Posted 21 October 2016 - 09:34 PM

The equations I found are rather bewildering. Do you have anything simpler than this?
http://www.dppobserv...hronisation.pdf

ASA DDM60Pro, homemade 8" and 10" reflectors, QSI 683 camera, Astrodon 5nm filters, Pulsar dome observatory. Website: http://www.geoastro.co.uk


#5 nakbrooks

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Posted 21 October 2016 - 09:52 PM

George - yes that is what I had found (same paper from a different source). Way too complicated for me to program with any confidence. I'm thinking my best bet is to use the ASCOM POTH to do the maths. If I set it up with the scope and dome simulators I should be able to issue scope Alt/Az pointing commands and intercept the resulting Dome Alt command.

My objective is firstly to check my dome slaving (which seems a bit off) and secondly to optimise pointing files to minimise dome rotation time.
Nigel Brooks
Stratis Observatory, Hautes Pyrénées, France.
http://www.facebook.com/stratisobservatory




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