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IX/13               The 2E Catalogue      (Harris+ 1994)

EINSTEIN Observatory catalog of IPC X-ray sources Harris D.E., Forman W, Gioa I.M., Hale J.A., Harnden Jr. F.R., Jones C., Karakashian T., Maccacaro T., McSweeney J.D., Primnini F.A., Schwarz J., Tananbaum H.D., Thurman J. <SAO HEAD CD-ROM Series I (Einstein), Nos 18-36 (1994)>
ADC_Keywords: X-ray sources Mission_Name: Einstein Description: This catalog contains sources from EINSTEIN IPC (Imaging Proportional counter aboard the EINSTEIN (HEAO 2) satellite, in orbit between November 1978 and April 1981) detected during pointed observations. Note that a single source may have more than one entry in the catalog. File Summary:
FileName Lrecl Records Explanations
ReadMe 80 . This file 2e.dat 114 5948 The catalogue
See also: The IPC Slew Survey (1ES) catalog : the Einstein On-Line System FTP service : the Einstein Home Page at Harvard. Byte-by-byte Description of file: 2e.dat
Bytes Format Units Label Explanations
1- 4 I4 --- CATNUM [1/4809]+= Catalogue number of the source (1) 5- 10 I6 --- SEQNUM Sequence number for the observation 11- 13 I3 --- FLDNUM Field number of the source 14- 16 I3 h RAh Right ascension 1950 (hours) 17- 19 I3 min RAm Right ascension 1950 (minutes) 20- 24 F5.1 s RAs Right ascension 1950 (seconds) 26 A1 --- DE- Declination 1950 (sign) 27- 28 I2 deg DEd Declination 1950 (degrees) 29- 31 I3 arcmin DEm Declination 1950 (minutes) 32- 34 I3 arcsec DEs Declination 1950 (seconds) 35- 38 I4 arcsec PosErr Positional error (arcsec) 39- 48 F10.5 ct/s Crate Corrected count rate 49- 56 F8.5 ct/s e_Crate Error on the count rate 57- 64 F8.1 s LivTime Live time (in seconds, at the field center) 65- 73 F9.1 --- NetCount Net counts in the detect cell 74- 81 F8.1 --- BkgCount Background counts in the detect cell 82- 87 F6.1 --- S/N Signal to noise ratio for the detection 88- 94 F7.1 --- SizCor Size correction factor (2) 95- 99 I5 --- RECode Ribs and edges code (3) 100-104 F5.1 arcmin OffAxis Dist. between source & field center (arcmin) 105-110 A6 --- SrcFlag [AaHLEI ] Source flags (4) 111-114 A4 --- RefFlag Reference and identification flag (5)
Note (1): The name can either be of the form 2E CATNUM, or be based on 1950 positions (format 2E HHMM.M+DDMM) Note (2): The size correction is a factor which serves to correct all intensity measurements (optimized for point sources) of resolved sources for the x-ray flux ignored by the detection box measurements. SizCor is defined as the ratio of the intensity contained within the 3 sigma contour to the intensity within the detection box (2.4'x2.4'), the latter value corrected for the point response function and mirror scattering. Note (3): RECode is a numeric flag with non-zero values indicating that the detection cell falls near or on a rib shadow or detector edge. The code contains two embedded numbers expressed in 4 digits: the first two (thousands and hundreds) give the total number (max # = 16) of frame subcells shadowed by the ribs or masked field edge; the last two (tens and units digits) give the total number of subcells (maximum = 09) within the detect box which are shadowed. Note (4): The flags are: A - additional detections of this source were achieved in other observations a - Probably should be paired with another detection; but separation exceeded cutoff and thus not assigned an "A" flag. H - a hardness ratio is available L - the source was detected only with the local detect method E - intensity corrected for source near the exposure cutoff at the field edge. I - source detected by local detect near a field edge. Intensity adjusted to remove redundant exposure corrections. Note (5): The reference indicator serves to alert the user to the following bibliographic information: AGN Active Galactic Nucleus BL BL Lac object CLG Cluster (or group) of galaxies CV Cataclysmic Variable G Galaxy GLB Globular Cluster P Pulsar Q Quasar RS Radio source S Star SNR Supernova Remnant SY Seyfert Galaxy * Reference available, but no optical class + Generic indicator which means possible ID lies from 100-150 arcseconds from source location.
History: The catalogue was prepared from the Einline version by Jean-Marie Hameury (Strasbourg Observatory) in October 1996.
(End) Jean-Marie Hameury [Strasbourg] 1996-Oct-25
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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