Re: Things I should know - but don't

[Tass Mailing List <tass@mail.alembic.net>]

Date: Wed, 13 Sep 2006 07:36:08 -0400
From: Doug Welch <welch@physics.mcmaster.ca>
To: Tass Mailing List <tass@mail.alembic.net>
Subject: Re: Things I should know - but don't


You can get the data from here, too:
http://crocus.physics.mcmaster.ca/TASSData/

I don't know how the epochs of observation are represented in your
computer but a common gotcha is that the JD has too much precision for
the data type in the program. Try stripping off the lead 24 on the epochs.

Cheers,
Doug

Tass Mailing List wrote:
> Date: Wed, 13 Sep 2006 08:18:59 +0100 (BST)
> From: Martin Nicholson <newbinaries@yahoo.co.uk>
> To: Tass Mailing List <tass@mail.alembic.net>
> Subject: Things I should know - but don't
>
> 1) Sources of data
>
> I know I can download data from :-
> http://sallman.tass-survey.org/servlet/markiv/template/DataDownload.vm
>
> And this is a form I can use with my Windows software - Excel, Peranso and the rest.
>
> Does all the data that is collected eventually make its way into this downloadable source?
>
> If it doesn't where can a Windows user find it?
>
>
> 2) Quality of data
>
> I downloaded the data for a few previously known variables in Cygnus but when I looked at it I
> could not match it up with the published periods in GCVS. It didn't matter if the data was for
> short or long period variables nothing even looked close. This was for 11-12 mag stars.
>
> Any thoughts?
>
>
>
> Martin Nicholson (AAVSO NMR)
>