Presentation is loading. Please wait.

Presentation is loading. Please wait.

Photometric Calibration Jorge F. García Yus GEMINI Observatory Barolo 2001.

Published byAlexina Taylor Modified over 9 years ago

Similar presentations

Presentation on theme: "Photometric Calibration Jorge F. García Yus GEMINI Observatory Barolo 2001."— Presentation transcript:

1 Photometric Calibration Jorge F. García Yus GEMINI Observatory Barolo 2001

2 GSC-II Photometric Calibration Calibrators: GSPC-I B, V magnitudes and brighter than 15 th TYCHO B Tycho, V Tycho magnitudes and brighter than 11.5 th GSPC-II B, V, R magnitudes and fainter as 20 th Color transformations: One pair for each pass band available Range of validate

3 Cont…. Photographic plate material and filters: IIIaJ+GG385, IIIaF+RG610, IIIaJ+GG395, IIIaF+OG590…… Scanning and digitalization: GAMMA 1 and GAMMA 2, laser and white light Pipeline data processing: SKYPROCESSOR INVENTORY DEBLENDER FINDCAT PHOTOSOL APPLY_CALYB

4 GSC 2 Photometric Calibration: from GSH files

5 Number of calibrators per field

6 Statistic are over estimated by known problems. Stars with more than one color, calibrators with poor astrometry and multiple observations.

7 Inconsistence in early reference catalogs version.

8 UKST southern hemisphere material: IIIaJ+GG395 (blue) and IIIaF+OG590 (red)

9 POSS-II northern hemisphere material: IIIaJ+GG385 (blue) and IIIaF+RG610 (red)

10 POSS-II special constrains: location of original photometric calibrators are vignetted

11 GSC 2.2.01 data: photometric analyze From 1715 square degrees (full sky coverage) Rejected 77 southern fields where J magnitude are not present (+/- 10° galactic latitude, SMC and LMC) ~5% Founded and rejected 32, plates with suspicious photometry. (mainly large color residuals) Total for analyze 1606 plates or 1606 square degrees

12 FaintArt.#s#caldiserrPlateDateComment 19.519.638050.70.10XJ0057-JAN-2000 18.718.748550.60.11XP00523-NOV-1999 19.819.715780.10.11XJ00719-DEC-2000 19.118.714060.10.13XP0077-JAN-2000 17.216.915150.20.11XJ0167-JAN-2000No faint GSPC2 16.215.915410.20.13XP0167-JAN-2000No faint GSPC2 17.116.814130.10.09XJ01720-DEC-1999No faint GSPC2 17.717.522930.10.13XP01714-OCT-1999No faint GSPC2 19.819.814040.30.10XJ0207-JAN-2000 18.518.414240.30.13XP0207-JAN-2000 20.820.736990.20.17XJ05720-DEC-1999 18.618.738060.10.13XP05717-JAN-2000 20.220.116980.20.15XJ0746-SEP-2000 10.911.31860.00.14XP0741-NOV-1999No GSPC2 20.620.716270.00.11XJ21919-DEC-2000 19.819.913560.10.11XP21918-JUL-2001 21.021.239582.50.15XJ28828-OCT-1999 17.417.22770.30.18XP28827-DEC-2000No faint GSPC2 19.219.367750.10.12XJ3408-MAR-2000 low galactic latitude 17.617.5011740.00.19XP34021-JUN-2000No faint GSPC2 20.320.512801.20.18XJ4286-JAN-2000 19.719.715041.00.14XP4286-DEC-1999 20.420.246750.10.10XJ49323-AUG-2000 19.219.326100.00.11XP49320-OCT-1999 20.820.823240.20.10XJ5337-JAN-2000 18.718.722720.30.13XP5337-DEC-1999 20.320.411660.40.11XJ59911-JAN-2000 18.418.311770.40.12XP59916-JAN-2001 18.418.121340.20.08XJ6531-FEB-2000 17.417.221500.20.12XP65316-DEC-1999No faint GSPC2 20.020.011950.40.12XJ6606-JAN-2000 11.611.801320.00.16XP66016-DEC-1999No GSPC2 20.720.622461.30.16XJ6697-JAN-2000 19.018.812011.90.12XP6692-DEC-2000 20.220.1520210.40.12XJ70118-DEC-2000bad matching? 17.917.717620.70.08XP70128-OCT-1999 19.419.2111810.10.10XJ7735-OCT-2000bad matching? 18.418.422090.60.13XP77324-JAN-2000

13 FaintArt.#s#caldiserrPlateDateComment 20.620.714020.20.16XJ8477-FEB-2000 20.220.113280.30.15XP84722-NOV-1999 20.921.01970.50.10XJ88014-JAN-2001 19.819.81710.00.15XP88011-NOV-1999 19.919.822720.30.13XS01612-JAN-2000 20.820.415790.00.13S01630-JAN-2001 19.819.614320.10.15XS16210-DEC-1999 21.021.1110030.10.16S16221-DEC-2000bad matching? 20.119.912600.20.12XS19210-DEC-1999 20.820.424920.00.19S19220-SEP-2000 19.619.5214850.10.14XS3726-FEB-2001bad matching? 18.117.811370.00.17S3728-SEP-1999 21.120.992060.10.15S43015-NOV-1999No red plate 20.620.519140.10.17S4525-OCT-2000No red plate 16.916.731550.30.13XS46811-DEC-1999No faint GSPC2 17.917.334730.10.11S46821-SEP-2000No faint GSPC2 17.417.666790.00.27S5221-DEC-1999* large error 20.120.119810.10.16ER6332-FEB-2001bad matching? 20.921.216030.10.11S63329-NOV-2000 18.117.821940.40.19ER7036-FEB-2001 18.818.918230.20.12S70328-NOV-2000bad matching? 20.320.5214170.10.15ER77412-FEB-2001bad matching? 21.021.128180.20.13S7744-JAN-2001bad matching?

14 Star completeness for 1606 pair of plates

15 All object completeness for 1606 pair of plates

16 J - F color

17

18

19

20

21 GSC 2 color distribution as a galactic latitude function

22 Conclusions GSC 2.2.01 provide at least 1 calibrated star (photometrical (J,F) and astrometrical) in a 2.5x2.5 minute squares. Dense enough for the telescope operation The number of fields that need photometric recalibration are less than 5% The major effort for the next release will be improving the accuracy for the faint end, providing an even product with a very good data quality for astrophysical research An effort still needs is in the pass band characterization, specially oriented for the final users (Observing tools, proposals planning, etc.) …….may be my homework…

Download ppt "Photometric Calibration Jorge F. García Yus GEMINI Observatory Barolo 2001."

Similar presentations

Research School of Astronomy & AstrophysicsSlide 1 SkyMapper SkyMapper and the Stromlo Southern Sky Survey Stefan Keller, Brian Schmidt, Paul Francis and.

Research School of Astronomy & AstrophysicsSlide 1 SkyMapper SkyMapper and the Stromlo Southern Sky Survey Stefan Keller, Brian Schmidt, Paul Francis and.
Bernhard Hubl CEDIC 2009 Colour Calibration of RGB Images Advantages and disadvantages of different colour calibration methodes.

Bernhard Hubl CEDIC 2009 Colour Calibration of RGB Images Advantages and disadvantages of different colour calibration methodes.
P.Tisserand Rencontres du Vietnam 2006 1 Final results on galactic dark matter from the EROS-2 microlensing survey ~ 850 000 images processed - 55 million.

P.Tisserand Rencontres du Vietnam Final results on galactic dark matter from the EROS-2 microlensing survey ~ images processed - 55 million.
HIGH PROPER MOTION WHITE DWARF CANDIDATES GSCII Annual Meeting October 19-20 2000 CBBS, Stevensville (MD) by Daniela Carollo Osservatorio Astronomico.

HIGH PROPER MOTION WHITE DWARF CANDIDATES GSCII Annual Meeting October CBBS, Stevensville (MD) by Daniela Carollo Osservatorio Astronomico.
Towards Creation of a JWST Astrometric Reference Field: Calibration of HST/ACS Absolute Scale and Rotation Roeland van der Marel Jay Anderson, Colin Cox,

Towards Creation of a JWST Astrometric Reference Field: Calibration of HST/ACS Absolute Scale and Rotation Roeland van der Marel Jay Anderson, Colin Cox,
July 7, 2008SLAC Annual Program ReviewPage 1 Weak Lensing of The Faint Source Correlation Function Eric Morganson KIPAC.

July 7, 2008SLAC Annual Program ReviewPage 1 Weak Lensing of The Faint Source Correlation Function Eric Morganson KIPAC.
Brian Schmidt, Paul Francis, Mike Bessell, Stefan Keller.

Brian Schmidt, Paul Francis, Mike Bessell, Stefan Keller.
The MACHO Experiment Aishwarya Bhake Astronomy 007: Big Bang and Beyond 4/13/2006.

The MACHO Experiment Aishwarya Bhake Astronomy 007: Big Bang and Beyond 4/13/2006.
Jenam 2007, Yerevan, Armenia1 Data analysis tools for the DFBS Overview of the DFBS What can be retrieved from the web interface Instrumental spectral.

Jenam 2007, Yerevan, Armenia1 Data analysis tools for the DFBS Overview of the DFBS What can be retrieved from the web interface Instrumental spectral.
PRIMA Astrometry Object and Reference Selection Doc. Nr. VLT-PLA-AOS-15759-0003 Astrometric Survey for Extra-Solar Planets with PRIMA J.Setiawan & R. Launhardt.

PRIMA Astrometry Object and Reference Selection Doc. Nr. VLT-PLA-AOS Astrometric Survey for Extra-Solar Planets with PRIMA J.Setiawan & R. Launhardt.
X-ray sources in NSVS Tim McKay University of Michigan 04/03/04.

X-ray sources in NSVS Tim McKay University of Michigan 04/03/04.
Cosmos Data Products Version 20050426 Peter Capak (Caltech) May, 23, 2005 Kyoto Cosmos Meeting.

Cosmos Data Products Version Peter Capak (Caltech) May, 23, 2005 Kyoto Cosmos Meeting.
Oct. 23, 2007 1 Review: how we record images? Photographic plates were the long-time standard (until c. 1982). Harvard has world’s largest collection (500,000.

Oct. 23, Review: how we record images? Photographic plates were the long-time standard (until c. 1982). Harvard has world’s largest collection (500,000.
GIANT TO DWARF RATIO OF RED-SEQUENCE GALAXY CLUSTERS Abhishesh N Adhikari Mentor-Jim Annis Fermilab IPM / SDSS August 8, 2007.

GIANT TO DWARF RATIO OF RED-SEQUENCE GALAXY CLUSTERS Abhishesh N Adhikari Mentor-Jim Annis Fermilab IPM / SDSS August 8, 2007.
The Use of Infrared Color-Color Plots to Identify Rare Objects in the Galactic Mid-Plane Jessica Fuselier Dr. Robert Benjamin, advisor.

The Use of Infrared Color-Color Plots to Identify Rare Objects in the Galactic Mid-Plane Jessica Fuselier Dr. Robert Benjamin, advisor.
The Nature of the Halo of the Galaxy as Revealed by SDSS/SEGUE Timothy C. Beers Dept. of Physics & Astronomy and JINA: Joint Institute for Nuclear Astrophysics.

The Nature of the Halo of the Galaxy as Revealed by SDSS/SEGUE Timothy C. Beers Dept. of Physics & Astronomy and JINA: Joint Institute for Nuclear Astrophysics.
6 th Annual GSC-II Project Meeting C B A S GSC-II and DSS-II Projects 2000 Annual Report Brian McLean 19 th October 2000.

6 th Annual GSC-II Project Meeting C B A S GSC-II and DSS-II Projects 2000 Annual Report Brian McLean 19 th October 2000.
JWST calibration requirements Harald Kuntschner. JWST - an overview NIRCam –0.6-5 microns –FoV: 2.16x4.4 arcmin (0.0317” for short band and 0.0648” for.

JWST calibration requirements Harald Kuntschner. JWST - an overview NIRCam –0.6-5 microns –FoV: 2.16x4.4 arcmin (0.0317” for short band and ” for.
BRITE-Constellation currently consists of two satellites, UniBRITE and BRITE-AUSTRIA (TUGSAT-1) and two satellites to be funded by the Canadian Space Agency.

BRITE-Constellation currently consists of two satellites, UniBRITE and BRITE-AUSTRIA (TUGSAT-1) and two satellites to be funded by the Canadian Space Agency.
1 FINAL DESIGN REVIEW | TUCSON, AZ | OCTOBER 21-25, 2013 Name of Meeting Location Date - Change in Slide Master Catalogs Framework Andrew Connolly Simulations.

1 FINAL DESIGN REVIEW | TUCSON, AZ | OCTOBER 21-25, 2013 Name of Meeting Location Date - Change in Slide Master Catalogs Framework Andrew Connolly Simulations.

Similar presentations

Ads by Google