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Tartarus Home Tartarus at Imperial College London ASCA Sequence List
74076000 PKS 2251+11
DETECTED

Object Information and Products

Object name : PKS 2251+11
RA (J2000) : 22 54 10.50
Dec (J2000) : +11 36 38.0
Detection significance : 27.5 sigma
Download Products (Full description of products)
All 74076000_v3.1_all.tar.gz Description
Imaging 74076000_v3.1_image.tar.gz Description
Spectral 74076000_v3.1_spectral.tar.gz Description
Timing 74076000_v3.1_timing.tar.gz Description


Observing Times
Elapsed (s) Exposure (s)
SIS0 70526 25012
SIS1 70528 24134
GIS2 70552 26022
GIS3 70552 26022

Observation Information

Sequence : 74076000
ASCA object name : PKS2251+113
Start date : 01 Jun 1996
Start time : 09:56:39
Start MJD : 50235.41435
SIS clocking mode : 2 CCDs
SIS data mode : BRIGHT
GIS3 channels : 1024
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
PKS 2251+11 22 54 10.50 +11 36 38.0 0.325 SEYFERT TYPE 1
UGC 12243 22 54 43.50 +11 42 51.0 0.028 SEYFERT TYPE 1
UGC 12237 22 54 19.70 +11 46 57.0 0.029 SEYFERT TYPE 2
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 		1096 610.3 485.7 1.94e-02
SIS1 Unsmoothed SIS1 detector image
jpeg gif 		Smooothed SIS1 detector image
jpeg gif 		856 336.9 519.1 2.15e-02
GIS2 Unsmoothed GIS2 detector image
jpeg gif 		Smooothed GIS2 detector image
jpeg gif 		1072 526.8 545.2 2.10e-02
GIS3 Unsmoothed GIS3 detector image
jpeg gif 		Smooothed GIS3 detector image
jpeg gif 		1196 540.5 655.5 2.52e-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 		0.60 1.22 / 126 4.65e-02 1.99e-12
Full Full-band spectral fit with absorption 2.32e+21 0.86 1.19 / 125 7.18e-02 1.78e-12
Soft Soft-band spectral fit no absorption Unabsorbed
Model 		-0.01 1.37 / 48 4.41e-02 1.70e-13
Soft Soft-band spectral fit with absorption NO
FIT 		NO
FIT 		NO
FIT 		NO
FIT 		NO
FIT
Hard Hard-band spectral fit no absorption Unabsorbed
Model 		0.69 1.10 / 69 2.64e-01 1.64e-12
Hard Hard-band spectral fit with absorption 9.83e+21 1.00 1.11 / 68 2.58e-01 1.57e-12
Galactic NH 5.21e+20


Light Curve

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


Log File and Warnings

Log file

2005.07.13.22:25.74076000.seq

Warnings

Custom regions were used
Unsuccessful spectral fit(s)
List of warnings in log file

Missing products

All products are available


Previous Sequence
74075000
Next Sequence
74077000


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    Last Updated: Monday, 25-Jul-2005 15:11:29 EDT