Return to Home Page
(fwd) problems with AIP4win The following message is from Marc Bos in response to my finding. Forwarded here with permission. He is now on these lists, and follow-up message to these lists will reach him. === Normally I don't follow the discussions on VSnet but your comments about AIP4Win were forwarded to me . I have also found problems with this software and therefor don't use it . I prefer DAOPHOT II in the form of Munipack 2 by Rudolf Novac and his collaborators. When comparing the output of both these packages I find that the scatter in the comparison data is consistently higher for AIP4Win by about 40% . Part of the problem could be that AIW4Win dose not allow one to set a value for the inner sky annulus, so effectively you could be including some of the stars light in the sky back ground subtraction. Also, how dose the software deal with fractions of pixels, hot pixels and stars in the sky annulus .I know that DAOPHOT dose it very well. Just some thoughts on the matter. I'll keep using DAOPHOT untill something better comes along but I can't see that happening in a hurry. Kind regards Mrac Bos Mt Molehill Observatory Otahuhu, AKL New Zealand
Return to the Daisaku
vsnet-adm@kusastro.kyoto-u.ac.jp
