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#16 Rejection of CMag values

Defect
closed-fixed
Adam
Tables (18)
9
2010-05-26
2009-08-03
David Benn
No

VStar currently rejects CMag field values of the form 0.ensemb Elizabeth Waagen said via email: "In the Cmag field (magnitude of comparison star) 0.ensemb means that ensemble photometry was done - that is, many comparison stars were used to determine the value of the variable, so a single magnitude cannot be put into the Cmag field. This type of Cmag value will only appear on CCD data, and then not that often."

So I'll fix that.

Discussion

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  • David Benn
    David Benn
    2009-09-11

    • milestone: --> Defect
     
  • David Benn
    David Benn
    2010-02-15

    • priority: 7 --> 3
     
  • David Benn
    David Benn
    2010-02-15

    A query shows that only a few obs use this value. Lowering priority. This is not hard to fix though. The field validation would have to permit "0.ensemb" and return the value "Ensemble" for display purposes.

     
  • David Benn
    David Benn
    2010-03-05

    • priority: 3 --> 9
     
  • Adam
    Adam
    2010-03-05

    Do we know of an observation point where this could be replicated?

     
  • David Benn
    David Benn
    2010-03-06

    I'll find one. I should have documented one initially.

     
  • David Benn
    David Benn
    2010-03-06

    I should've added this before.

    Try Epsilon Aurigae between JD: 2454668.94979 and 2454668.95019. I see these in the database, i.e.

    2454668.94979 000-BCT-905 EPS AUR 2.374 0.ensemb
    2454668.95061 000-BCT-905 EPS AUR 3.319 0.ensemb
    2454668.95019 000-BCT-905 EPS AUR 3.134 0.ensemb

    but not all in VStar, presumably since they are being rejected. I would suggest writing a UT to download these and see what you get.

    Thanks.

     
  • David Benn
    David Benn
    2010-03-06

    You could also get an equivalent data file from here: http://www.aavso.org/data/download/ but may not get what you want easily.

    Put these obs into a file and see what VStar does with these.

    2454594.33333,3.0,,,Vis.,SSW,,32,,,,No,,G,,,0.0,EPS AUR,,STD,,
    2454595.32569,3.0,,,Vis.,RZM,,27,32,AAVSO Atlas,,No,,G,,,,EPS AUR,,STD,,
    2454604.57847,3.0,,,Vis.,MDP,S,32,43,sa080329,29 COMP LOST IN OBSTRUCTIONS;BRIGHTER THAN 32,No,,G,,,,EPS AUR,,STD,,
    2454653.84167,3.0,,,Vis.,MDP,LB,29,32,080329,29 COMP FROM AAVSO ATLAS,No,,G,,,,EPS AUR,,STD,,
    2454656.52083,3.0,,,Vis.,SSW,,32,,080330,,No,,G,,,,EPS AUR,,STD,,
    2454657.83819,3.1,,,Vis.,MDP,S,32,29,080329,29 FROM AAVSO ATLAS,No,,G,,,,EPS AUR,,STD,,
    2454668.94979,2.374,,,R,TDW,LK,,,,Observation is average using 5 comp stars: Eta, Zeta, 1 Aur, 2 Aur, Omega,Yes,2.217,G,0.ensemb,,,EPS AUR,,STD,,
    2454668.95019,3.134,,,V,TDW,LK,,,HPO,Observation is average using 5 comp stars: Eta, Zeta, 1 Aur, 2 Aur, Omega,Yes,2.217,G,0.ensemb,,,EPS AUR,,STD,,
    2454668.95061,3.319,,,B,TDW,LK,,,,Observation is average using 5 comp stars: Eta, Zeta, 1 Aur, 2 Aur, Omega,Yes,2.217,G,0.ensemb,,,EPS AUR,,STD,,
    2454668.95104,2.062,,,I,TDW,LK,,,,Observation is average using 5 comp stars: Eta, Zeta, 1 Aur, 2 Aur, Omega,Yes,2.167,G,0.ensemb,,,EPS AUR,,STD,,
    2454674.00694,3.0,,,Vis.,HTN,B,32,29 from atlas,1009gjy,MOON,No,,G,,,,EPS AUR,,STD,,
    2454674.52431,3.05,,,Vis.,SSW,,32,,080330,,No,,G,,,,EPS AUR,,STD,,
    2454675.53611,3.0,,,Vis.,RZM,,27,32,AAVSO Atlas,,No,,G,,,,EPS AUR,,STD,,
    2454675.5563,3.1,,,Vis.,SYI,TO,27,32,,,EPS AUR = 3.05 MAG,No,,G,,,,EPS AUR,,STD,,
    2454675.8,3.1,,,Vis.,MDP,LUB,29,32,080329,MOON UP. HAZY; 29 FROM AAVSO ATLAS,No,,G,,,,EPS AUR,,STD,,

    Right now file obs and database source obs are validated differently, namely file obs are more heavily validated. I intend for that to change in future though.

     
  • David Benn
    David Benn
    2010-03-06

    • assigned_to: david_benn --> adamweber
     
  • Adam
    Adam
    2010-03-25

    Actual display issue is fixed in 445, but there is another issue that all points aren't being displayed.

     
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