ScienceGrade Summary

Catalog Products >> Product Log >> Summary
Product Identification
Real User Lisbeth Fogh Olsen
Product Creation Date 2005-08-26
Product Creation Time 13:44:54.412
User eisdata
Session 75286
Process Local
Product Type SINGLE PASSBAND
Extraction Method SExtractor
Extraction Version SExtractor 2.3.2
Survey DPS
Telescope ESO-NTT
Instrument SOFI
Region DEEP3b
Field deep3b_20
Passband J
ESO Filter# #001
Total Exposure Time (seconds) 3600
Product Information
Instrument SOFI
Passband J
ESO Filter# #001
Magntude Type used for Reporting MAG_AUTO
Right Ascension (hh:mm:ss.s) 11:22:36.7
Declinaton (dd:mm:ss.s) -21:48:22.1
Right Ascension (decimal degrees) 170.6530
Declinaton (decimal degrees) -21.8061
Galactic longitude (degrees) 277.0289
Galactic latitude (degrees) 36.5578
Total Exposure Time (seconds) 3600
Image File Name EIS.2005-07-30T16:52:14.630.fits
Catalog File Name EIS.2005-08-26T14:13:46.656.fits
Primary Catalog Information
Product Type SINGLE PASSBAND
Total Area (square degrees) 0.0091
Trimmed Area (square degrees) 0.0009
Masked Area (square degrees) 0.0001
Number of Extracted Objects 2061
Number of Saturated Objects 6
Number of Objects with SExtractor Flag > 0 391
Number of Objects inside trimmed area 237
Number of Objects inside masked area 74
80% Completeness Limit (Vega) 22.77
50% Completeness Limit (Vega) 23.30
Average Magnitude for Objects with MAG_AUTO error = 0.2 (Vega) 22.50
Science Catalog Information
Magnitude Type used for Filtering MAG_AUTO
Signal-to-Noise limit 3.0
Classification Magnitude Limit 18.0
ClassStar Limit for selecting stars 0.9
Limiting Magnitude for Masking 0
Mask Size Factor (Half Diagonal=factor*A_WORLD) 20
Maximum Half Diagonal for Masks (arcsecs) 126
Total Area (square degrees) 0.0091
Trimmed Area (square degrees) 0.0009
Masked Area (square degrees) 0.0001
Effective Area (square degrees) 0.0081
Number of Extracted Objects 961
Number of Galaxies 650
Number of Stars 16
Number of Saturated Objects 6
Number of Objects with SExtractor Flag > 0 243
Number of Objects in trimmed area 86
Number of Objects in masked area 21
80% Completeness Limit (Vega) 21.67
50% Completeness Limit (Vega) 22.23
Average Magnitude for Objects with MAG_AUTO error = 0.2 (Vega) 22.50
Catalog Contents
Number of Columns in OBJECTS table 69
Number of Objects 961
Number of Columns in FIELDS table 110
Number of Entries in FIELDS table 1
Number of Columns in MASKS table 1
Number of Masks 6
Number of Automatic Masks 6
Number of Masks generated by hand 0
Number of Columns in FILTER table 4
Number of Entries in FILTER table 3334
Instrument Properties
Instrument SOFI
Pixel Scale (arcsec) 0.29
Field-of-View (square arcmin) 0.0067
Gain (electrons/ADU) -
Non-linearity (ADU) N/A
Saturation (ADU) 10000.0
Effective Gain (electrons/) 21879.7
Effective Non-linearity (ADU) N/A
Effective Saturation (ADU) 190.0
Filter Properties
Passband J
ESO Filter # #001
Mean Wavelength (Angstrom) 12534.5
FWHM (Angstrom) 2887.0
AB correction 0.904
AB correction applied to magnitudes in the catalog 0.904
Average E(B-V) 0.044
Standard Deviation of E(B-V) 0.00101
Relative Extinction ( A/E(B-V) ) 0.879
Computed Extinction Correction 0.039
Computed Standard Deviation of Extinction Correction 0.00089
Extinction Correction applied to magnitudes in the catalog 0.038
Telescope Response and Filter Transmission Curves
Telescope response function (green) and filter transmission (red) curves
.

Primary Attributes

Catalog Products >> Product Log >> Primary Catalog >> Attributes
Product Identification
Real User Lisbeth Fogh Olsen
Product Creation Date 2005-08-26
Product Creation Time 13:44:54.412
User eisdata
Session 75286
Process Local
Product Type SINGLE PASSBAND
Extraction Method SExtractor
Extraction Version SExtractor 2.3.2
Survey DPS
Telescope ESO-NTT
Instrument SOFI
Region DEEP3b
Field deep3b_20
Passband J
ESO Filter# #001
Total Exposure Time (seconds) 3600
Product Information
RA (center of catalog) 170.6530
Dec (center of catalog) -21.8061
Maximum RA of catalog (degrees) 170.7010
Minimum RA of catalog (degrees) 170.6030
RA interval (arcmin) 0.10
Maximum Dec of catalog (degrees) -21.7611
Minimum Dec of catalog (degrees) -21.8511
Dec interval (arcmin) 0.09
Total area of catalog (square degrees) 0.0091
Object Statistics
Total Number of Objects 2061
Number of Objects inside Trimmed Area 237
Number of Objects inside Masked Area 74
Number of Objects with SExtractor Flag > 0 391
Star/Galaxy Classification
Magnitude Type for Classification MAG_AUTO
Star/Galaxy Classification Method adopted Simple Method
Magnitude Limit Applied for "Simple" Star/Galaxy Classification 18.0
CLASS_STAR Limit Applied for "Simple" Star/Galaxy Classification 0.9
Galaxy/Star Classification
Adopted star/galaxy separation method using stellar index. 
Limiting Magnitude (VEGA)
Aperture Magnitudes
Aperture (arcsec) (S/N = 1) (S/N = 2) (S/N = 3) (S/N = 5) (S/N = 10)
1.0 - 23.61 23.47 23.05 22.04
1.5 - 23.28 22.96 22.50 21.73
2.0 23.89 23.14 22.69 22.12 21.40
2.5 23.36 22.95 22.45 21.95 21.18
3.0 23.50 22.53 22.41 21.86 21.05
3.5 23.35 22.60 22.10 21.66 20.84
4.0 23.19 22.39 22.11 21.22 20.83
4.5 23.01 22.47 22.09 21.40 20.56
5.0 23.05 22.07 21.84 21.18 20.54
10.0 22.15 21.66 20.88 20.28 19.80
Other Magnitudes
Magnitude Type (S/N = 1) (S/N = 2) (S/N = 3) (S/N = 5) (S/N = 10)
MAG_AUTO - 23.11 23.03 21.72 20.83
MAG_ISO - 24.03 23.79 22.51 21.41
MAG_ISOCOR - - 23.39 22.14 21.16
Simulation Results
Number of Simulated Images 3
Fading Factor 3.0,3.5,4.0
Limiting Magnitude at 80% completeness (Vega) 22.77
Limiting Magnitude at 50% completeness (Vega) 23.30
Catalog Completeness
Completeness of the catalog estimated from the comparison between real and simulated data.
The simulations were created by fading the original image by 0.5 magnitudes but keeping the same background noise
Estimate of Magnitude errors and bias
Average of SExtractor magnitude error
Results from using the Negative Image
Statistics of Spurious Objects
Fraction of false positives as a  function of magnitude for different values of S/N
Spatial Distribution of Spurious Objects
Spatial distribution of spurious objects estimated from false positives
.

ScienceGrade Attributes

Catalog Products >> Product Log >> Science Grade Catalog >> Attributes
Product Identification
Real User Lisbeth Fogh Olsen
Product Creation Date 2005-08-26
Product Creation Time 13:44:54.412
User eisdata
Session 75286
Process Local
Product Type SINGLE PASSBAND
Extraction Method SExtractor
Extraction Version SExtractor 2.3.2
Survey DPS
Telescope ESO-NTT
Instrument SOFI
Region DEEP3b
Field deep3b_20
Passband J
ESO Filter# #001
Total Exposure Time (seconds) 3600
Filtering Settings
Magnitude Type for Catalog Filtering MAG_AUTO
Signal to Noise Filtering Threshold 3.0
Magnitude Upper Limit 99.9
Magnitude Lower Limit 0.0
Star/Galaxy Classification Method adopted Simple Method
Magnitude Limit Applied for "Simple" Star/Galaxy Classification 18.0
CLASS_STAR Limit Applied for "Simple" Star/Galaxy Classification 0.9
Product Information
Total Area (square degrees) 0.0091
Trimmed Area (square degrees) 0.0009
Masked Area (square degrees) 0.0001
Effective Area (square degrees) 0.0081
Object Statistics
Number of Objects inside Trimmed Area 86
Number of Objects inside Masked Area 21
Number of Objects with SExtractor Flag > 0) 243
Final Number of Galaxies 650
Number Density of Galaxies (galaxy/square arcmin) 22.291
Final Number of Stars 16
Number Density of Stars (stars/square arcmin) 0.549
Smooth Density Plot
Smooth object density distribution,generated by applying a top-hat window of ... arcmin in diameter
Projected Distribution
Projected Distribution of science grade catalog. In the figure are shown:
 1) galaxies (blue); stars (magenta); trimmed objects (red crosses); masked objects (black crosses); other discarded objects red squares).
Also shown are the automatic masks placed by the system around bright stars, as defined in the configuration file (red losangles) 
Limiting Magnitudes
Vega Magnitude System
5-sigma 2 arcsec (Vega) 22.50
80% completeness (Vega) 21.67
Extinction corrected 5-sigma 2 arcsec (Vega) 22.46
Extinction corrected 80% completeness (Vega) 22.73
AB Magnitude System
5-sigma 2 arcsec (AB) 23.40
80% completeness (AB) 22.57
Extinction corrected 5-sigma 2 arcsec (AB) 23.36
Extinction corrected 80% completeness (AB) 23.63
Science Grade Catalog Completeness
80% completeness at m = 21.67
50% completeness at m = 22.23
red: completeness function
blue: 50 and 80 percent completeness levels linearly interpolated between bins
Magnitude System: Vega
Magnitude Type: MAG\_AUTO
.

Verification

Catalog Products >> Product Log >> Primary Catalog >> Verifcation
Product Identification
Real User Lisbeth Fogh Olsen
Product Creation Date 2005-08-26
Product Creation Time 13:44:54.412
User eisdata
Session 75286
Process Local
Product Type SINGLE PASSBAND
Extraction Method SExtractor
Extraction Version SExtractor 2.3.2
Survey DPS
Telescope ESO-NTT
Instrument SOFI
Region DEEP3b
Field deep3b_20
Passband J
ESO Filter# #001
Total Exposure Time (seconds) 3600
Number Counts
Star Counts with comparison with Galactic model
              
STAR COUNTS COMPARED WITH GALACTIC MODEL
              
Solid dots: EIS data
Cyan line: Galactic model, not corrected for catalog completeness 
Blue line: Galactic model, corrected for catalog completeness
Red dotted line: magnitude limit for the star/galaxy classification
Magenta dotted line: 2 arcsec - 5 sigma limiting magnitude
Number of stars in the catalog: 16
Magnitudes are Vega in the instrument natural system (SOFI)
Model data averaged over 2 simulations.
Errors on model calculated as the standard deviation of the values in the different simulations.
Errors on the real counts are: 1+sqrt(N + 0.75)
Galaxy Counts
Solid Blue Squares: EIS data
            
            
blue dashed line:    
5 S/N MAG_AUTO magnitude limit=21.72
            
red line:    
Least Squares Method: fitted log(Counts)=a*Magnitude+b
a =  0.20; b =  0.12.
            
Magnitude System: Vega
Magnitude Type:   MAG_AUTO
.