[vsnet-chat 814] Re: VSNET charts

[Taichi Kato <tkato>]

   Returning back to history, there has been no formal discussion on chart
format.  The present VSNET chart format can date back to 1993 (or earlier),
when I decided to provide them as by-products of my CCD observations.
So the format was originally pretty "in situ", rather than well-considered
out.  I chose the "CCD detection output"-like format in order to minimize
the conversion efforts from the original CCD images.  I usually do adjusting
magnitude offsets, rejecting some noises (when possible).  I might have
been merging multi-band observations, but I preferred producing more charts
(the number of electric charts was only too limited then).  Since the
establishment of VSNET (1994), the format has been taken over.

   I once has a personal discussion with Fraser Farrell on possible inclusion
of the chart scale.  At that time, I replied that I don't know whether all
available VSNET chart viewers can properly treat additional header line(s).
I think this may be easily tested now (knowing different persons use different
viewers), and if all existing viewers are proven to robust to these changes,
it may be a good option to add header item(s).

   Yes, there may be a lot to be considered at the times of modern technology
than in 1993.

Regards,
Taichi Kato

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