[Aavso-photometry] V filter only - transforms possible?

[robertjmodic at att.net]

Arne,

----- Original Message ----- 
> Date: Fri, 19 Dec 2008 08:55:18 -0500
> From: arne <arne at aavso.org>
> Subject: Re: [Aavso-photometry] V filter only - transforms possible?
> To: Michael Koppelman <lolife at bitstream.net>
> Cc: aavso-photometry at mira.aavso.org
> 
> Michael Koppelman wrote:
>> Yeah you are best off using your system in a manner which emphasizes its 
>> strengths and minimizes its weaknesses. There is tons you can do with 
>> untransformed differential photometry.
>> 
>> But let me hasten to add, you can play with this stuff, for fun, and do 
>> whatever the hell you want. You will learn stuff if you try to transform 
>> single bandpass observations. But like Dr. Newberry said, you won't be 
>> improving them.
>> 
> My intent is to concentrate on observing techniques in 2009, in an effort
> to get observers producing even higher scientific quality data.

One thing that might encourage more observers to report transformed
observations would be to have the AAVSO provide a spreadsheet template that 
would take the flux measurements from any photometry software and show how 
to obtain differential transformed magnitudes ready for reporting to the AAVSO.  
Most software and spreadsheets I've seen only deal with the case of transforming 
all-sky photometry.  But, most of the CCD observations submitted to the AAVSO 
are differential.  So, a spreadsheet template along with some worked examples 
might save observers from having to 'roll their own' and help make sure that 
everyone is doing this correctly.

Bob Modic (MRV)