Re: SNTRAK priorities

From: Ariel Goobar (ariel@physto.se)
Date: Tue Nov 05 2002 - 01:11:15 PST

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    Lightcurves for Ia's in SDSS i' for z=[0.1-1.4] can be found in
    www.physto.se/~snova/private/lightcurves/sloan_iprime.ps
    scpmem/hizsn

    For z>1 we are looking at i' > 24.5

    Ariel

    On Tue, 5 Nov 2002, Saul Perlmutter wrote:

    > The listed magnitudes in sntrak are i'_AB for this run. We don't yet know
    > how uncertain these numbers are in their zeropoint, but you can estimate
    > their photometric uncertainty from their Ap.Sig.
    >
    > --Saul
    >
    >
    > Ariel Goobar wrote:
    >
    > > Hi Greg,
    > > Are the listed magnitudes in the Vega system or AB ? What is the
    > > kind of uncertainty you expect on the numbers?
    > >
    > > Ariel
    > >
    > > On Tue, 5 Nov 2002, Greg Aldering wrote:
    > >
    > > >
    > > > Just an update: I have slogged through about 1/2 of the suspect
    > > > candidates (all of those found before about 6 pm tonight) and assigned
    > > > them qualities and priorities in SNTRAK. In addition, the high-quality
    > > > candidates from that time period have also been updated in SNTRAK
    > > > (these are the ones that Andy has made finders for and that Rachel is
    > > > checking guide stars for). In all, about 30 candidates have now been
    > > > prioritized. (This total doesn't count the dozen or so mangled ref
    > > > examples that I saved - these have had their priorities set to -1 and
    > > > so you shouldn't see them anymore.)
    > > >
    > > > The way to tell whether a candidate has been prioritized is to see if
    > > > its priority has a value other than 2. Note that there are still
    > > > many (~24 right now) candidates yet to be prioritized.
    > > >
    > > > - Greg
    > > >
    > >
    > > --
    > > ___________________________________________________________________
    > > Ariel Goobar (ariel@physto.se)
    > > FYSIKUM, Stockholm University
    > > Stockholm Center for Physics, Astronomy & Biotechnology
    > > tel: +46 8 55378659
    >
    > 

    -- 
___________________________________________________________________
Ariel Goobar (ariel@physto.se)
FYSIKUM, Stockholm University
Stockholm Center for Physics, Astronomy & Biotechnology
tel: +46 8 55378659

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