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IX/11               ROSAT Source Catalog        (Voges+ 1994)

ROSAT Source Catalog, Version 11-May-1995 Voges W., Gruber R., Haberl F., Kuerster M., Pietsch W., Zimmermann U. <ROSAT NEWS No.32 (01-Nov-1994)>
ADC_Keywords: X-ray sources Mission_Name: ROSAT Description: This catalogue contains sources from PSPC-ROSAT (Position-sensitive Proportional Counter aboard the Roentgen Satellite), as provided by Max-Planck Institut fuer extraterrestrische Physik (MPE) in December 1994. The WGACAT version of the ROSAT PSPC Catalogue (IX/12) is a similar catalogue with slightly different reduction procedures For a description of the ROSAT Mission, see Truemper (1983) File Summary:
FileName Lrecl Records Explanations
ReadMe 80 . This file rosatsrc.dat 248 74301 The ROSAT Source Catalogue
See also: IX/10 : ROSAT All-Sky Bright Source Catalogue (1RXS) (Voges+ 1996) IX/12 : the WGACAT version of the ROSAT PSPC Catalogue (White+ 1995) IX/28 : ROSAT HRI Pointed Observations (1RXH) (ROSAT Team, 1999) J/A+AS/114/465 : ROSAT XUV Pointed Phase Source Catalogue (Kreysing+ 1995) J/MNRAS/274/1165 : The 2RE Source Catalogue (Pye+ 1995) : Public ROSAT Data Archive Byte-by-byte Description of file: rosatsrc.dat
Bytes Format Units Label Explanations
5- 24 A20 --- Seq ROSAT observation sequence number 26- 29 I4 --- MASOL MASOL main running number 31- 52 A22 --- Name ROSAT source name (1RXP) (1) 54- 62 F9.5 deg RAdeg Right ascension (J2000), decimal degrees 64- 72 F9.5 deg DEdeg Declination (J2000), decimal degrees 74- 82 F9.5 deg GLON Galactic longitude 84- 92 F9.5 deg GLAT Galactic latitude 94- 98 F5.1 arcsec ErrML Positional accuracy: error radius of Maximum Likelihood algorithm 100-104 F5.1 arcsec ErrBor Positional accuracy: boresight error 106-110 F5.1 arcsec ErrSys Positional accuracy: systematic error 112-116 F5.1 arcsec PosErr Total Positional accuracy 118-123 F6.2 arcmin OffAxis Off-axis radius in arcmin 125-133 E9.3 ct/s Count Source countrate (vignetting corrected) 135-143 E9.3 ct/s e_Count Mean error on Count 145-153 E9.3 ct/s/arcmin2 bgCt Background countrate 155-162 F8.0 s ExpTime Exposure time 163-168 F6.2 --- HR1 Hardness ratio 1 (2) 169-174 F6.2 --- e_HR1 Error on HR1 175-180 F6.2 --- HR2 hardness ratio 2 (2) 181-186 F6.2 --- e_HR2 Error on HR2 187-193 F7.1 --- Extent Source extent, by which the source image exceeds the point spread function. 194-200 F7.1 --- L_Extent Likelihood of source extent 201-208 F8.0 --- ML Likelihood from maximum-likelihood method 209-214 I6 --- Ldetect Likelihood of source detection algorithm 215-219 I5 arcsec RibDist Distance to next rib or edge 220-224 I5 arcsec SrcDist Distance to next source before screening 225-229 I5 arcsec SrcDist2 Distance to next source after screening 231-236 A6 --- PrioFlags [01] Source detection string (3) 237 A1 --- PHA [ABCDb ] Source detection string (4) 239-241 I3 45arcsec Cell Detect cell size (5) 242-246 F5.2 --- VigFactor []?=0 Vignetting factor (6) 248 A1 --- Confuse [YN] Confusion indicator
Note (1): The name includes the '1RXP' acronym, and is based on J2000 position (format JHHMMSS.S+DDMMSS). Note (2): The hardness ratios are defined by: hr1 = ( B - A ) / ( B + A ) , where A = countrate in PHA range 11 - 41 (∼0.1-0.4 keV) B = countrate in PHA range 52 - 201 (∼0.5-2.0 keV) hr2 = ( D - C ) / ( D + C ) , where C = countrate in PHA range 52 - 90 (∼0.5-0.9 keV) D = countrate in PHA range 91 - 201 (∼0.9-2.0 keV) (PHA = Pulse Height Amplitude) Note (3): the flags indicate the sliding window detection history using either the background map (M) or the local background (B), and take the values 0 = no detection, 1 = detection; The order of flags is: M-broad, L-broad, M-hard, L-hard, M-soft, L-soft Note (4): the PHA (Pulse Height Amplitude) range PHA range with highest detection likelihood is indicated by A = PHA range 11-41 (∼0.1-0.4 keV) B = PHA range 52-201 (∼0.5-2.0 keV) C = PHA range 52-90 (∼0.5-0.9 keV) D = PHA range 91-201 (∼0.9-2.0 keV) b or blank means 'broad' Note (5): the basic detect cell size is 3x3 pixels, or 45x45arcsec; a value of 2 indicates a detect cell size of 90x90arcsec, a value of 4 indicates a detect cell size of 3x3arcmin, and a value of 8 a detect cell size of 6x6arcmin. Note (6): the vignetting factor increases from 1 for sources detected on the axis to higher values when the source was detected off-axis.
History: From Acknowledgements: Thanks are due to Christian Motch and Wolfgang Voges for their help in the preparation of this document. References: Truemper J., 1983, Adv. in Space Res. 2, No.4, 241.
(End) Francois Ochsenbein [CDS] 15-Jul-1996
The document above follows the rules of the Standard Description for Astronomical Catalogues.From this documentation it is possible to generate f77 program to load files into arrays or line by line

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