[vsnet-chat 5809] Re: On Maciej's CCD survey

[Seiichi Yoshida <comet@aerith.net>]

Dear Maciej Reszelski,

[vsnet-chat 5781]:
> For now I must check all observations visually before
> I sending. It spent me some time but... :)

Of course you have to do that!

In the MISAO Project activity, I have been spending so much time to
check measured magnitude of variable stars before reporting to
VSNET confirming the images visually using the PIXY System 2's
graphical user interface.

There are so many reasons why the measure magnitude becomes
erroneous. Maybe it is at the edge. Maybe identification is
wrong. Maybe it is blended with a nearby stars. Maybe it is on the
dark spot. Maybe the zero point could not be set properly. And so on.

Actually we the MISAO Project has millions of unreported magnitude
data in my database, but only several thousands of them have been
reported officially to VSNET. Because it takes so much time to check
them.

Yes, as Maciej wrote, the main problem to operate such a project is
the time to check measured magnitude before reporting officially. It
is a serious bottle neck. Many stars are measured automatically
properly, but some are not. So it is required to check by hand.

I believe it is impossible to check all of those data whie I am
alive :-) So in my own plans, I want to release all those unchecked
magnitude data at some web site. It needs a large hard disk, so I have
not found a good web site for it yet.

> Thanks to Sebastian for his comment. I hope that
> Seiichi response and he find some way to fixed
> these bugs.

Maciej, do you believe it is a bug of the PIXY System 2? Maybe so, but
maybe not.

If you send me some of your images, I will check them and report why
the error occurred in some cases.

Best regards,

--
Seiichi Yoshida
comet@aerith.net
http://vsnet.aerith.net/

VSNET Home Page

Return to Daisaku Nogami

---

vsnet-adm@kusastro.kyoto-u.ac.jp