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Tartarus Home Tartarus at Imperial College London ASCA Sequence List
71031000 NGC 1808
DETECTED

Object Information and Products

Object name : NGC 1808
RA (J2000) : 05 07 42.30
Dec (J2000) : -37 30 46.0
Detection significance : 38.89 sigma
Download Products (Full description of products)
All 71031000_v3.1_all.tar.gz Description
Imaging 71031000_v3.1_image.tar.gz Description
Spectral 71031000_v3.1_spectral.tar.gz Description
Timing 71031000_v3.1_timing.tar.gz Description


Observing Times
Elapsed (s) Exposure (s)
SIS0 78128 32471
SIS1 75376 24929
GIS2 78222 35218
GIS3 78222 35210

Observation Information

Sequence : 71031000
ASCA object name : NGC1808
Start date : 26 Feb 1994
Start time : 05:53:19
Start MJD : 49409.24537
SIS clocking mode : 2 CCDs
SIS data mode : BRIGHT2
GIS3 channels : 128
Event threshold : The effective event threshold is constant.
Link to official ASCA Data Facility processing page


GIS Sky Images and Veron 2001 Objects

GIS2 Detection Image GIS Rebinned Image Veron Objects
GIS2 image with detection regions Binned GIS image with nominal RA/Dec Smoothed GIS image with Veron objects and centroid
jpeg gif jpeg gif jpeg gif


Veron Name
(with NED link) 		RA (J2000) Dec (J2000) Redshift Type
NGC 1808 05 07 42.30 -37 30 46.0 0.003 AGN UNCLASSIFIED
Link to all NED objects in GIS field-of-view


Detector Images, Extraction Regions and Counts

Detector Detector Images Source
Region
Counts 		Scaled
Background
Counts 		Background
Subtracted
Counts 		Background
Subtracted
Rate
Unsmoothed Smoothed (counts) (counts) (counts) (counts s-1)
SIS0 Unsmoothed SIS0 detector image
jpeg gif 		Smooothed SIS0 detector image
jpeg gif 		2211 698.8 1512.2 4.66e-02
SIS1 Unsmoothed SIS1 detector image
jpeg gif 		Smooothed SIS1 detector image
jpeg gif 		1367 460.7 906.3 3.64e-02
GIS2 Unsmoothed GIS2 detector image
jpeg gif 		Smooothed GIS2 detector image
jpeg gif 		1410 706.6 703.4 2.00e-02
GIS3 Unsmoothed GIS3 detector image
jpeg gif 		Smooothed GIS3 detector image
jpeg gif 		1689 718.8 970.2 2.76e-02


Spectral Fitting Results

Energy
Band 		Spectrum NH Photon
Index 		Red. Chi2
/ DOF 		Prob. to
Exceed 		SIS0 Flux
(cm-2) (erg cm-2 s-1)
Full Full-band spectral fit no absorption Unabsorbed
Model 		2.28 1.40 / 197 1.56e-04 1.38e-12
Full Full-band spectral fit with absorption 0.00e+00 2.28 1.41 / 196 1.30e-04 1.38e-12
Soft Soft-band spectral fit no absorption Unabsorbed
Model 		2.51 1.83 / 85 4.45e-06 8.10e-13
Soft Soft-band spectral fit with absorption 7.47e+20 2.87 1.84 / 84 4.15e-06 7.76e-13
Hard Hard-band spectral fit no absorption Unabsorbed
Model 		1.54 0.92 / 103 6.97e-01 9.88e-13
Hard Hard-band spectral fit with absorption 6.92e+21 1.80 0.93 / 102 6.79e-01 9.27e-13
Galactic NH 2.70e+20


Light Curve

Full-band SIS light curve Combined SIS0 + SIS1 0.5-10 keV light curve


Log File and Warnings

Log file

2005.07.08.05:39.71031000.seq

Warnings

List of warnings in log file

Missing products

All products are available


Previous Sequence
71030010
Next Sequence
71032000


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    Last Updated: Monday, 25-Jul-2005 14:58:19 EDT