7080 VII/80 The HEAO A-1 X-Ray Source Catalog K S Wood J F Meekins D J Yentis H W Smathers D P McNutt R D Bleach E T Byram T A Chubb H Friedman M Meidav Astroph. Jour. Suppl. 56 507-649 1984 1984ApJS...56..507W X-ray sources The HEAO A-1 X-Ray Source Catalog is a compilation of data for 842 sources detected with the U. S. Naval Research Laboratory Large Area Sky Survey Experiment flown aboard the HEAO 1 satellite. The data include source identifications, positions, error boxes, mean X-ray intensities, and cross identifications to other source designations.

The primary objective of the Naval Research Laboratory (NRL) Large Area Sky Survey Experiment (LASS) flown aboard the HEAO 1 satellite was to conduct an all-sky survey for the brightest X-ray sources in the energy range 0.25 to 25 keV. The instrumentation consisted of an array of large proportional counter modules with collimators of varying fields of view and with sufficient sensitivity to detect sources as faint as 0.25 mu.Jy at 5 keV, assuming a Crab-like spectrum (1.1 muJy at 5 keV = 1 UFU for a Crab-like spectrum). Full sky coverage was achieved in the first 6 months of the mission by continuously scanning great circles perpendicular to the Earth-Sun line. The HEAO A-1 catalog results from the 6-month survey and, thus, covers the whole sky. For additional information concerning the NRL LASS instrument, the data analysis procedures, characteristics and limitations of the source data, and a discussion of X-ray source classes, the source publication should be consulted.

name Source designation (1H) The first seven fields (bytes 150-239) contain alternate designations of each source in other X-ray catalogs, while the last four fields are for non-X-ray cross identifications. Catalog identifications and references are given in Table 5 of the source paper. Cross identifications were selected according to certain criteria. For X-ray catalogs (4U, 2A, 1M, etc.), where error boxes of up to several degrees are sometimes reported, the cross reference is given whenever the other error box intersects the HEAO A-1 error box. Identifiers are also given in certain cases where boxes do not strictly intersect but are sufficiently close to suggest a possible relationship. The criterion used is that the separation between box centers must be less than the sum of the two largest dimensions. The designation XRS (not included in Table 5, but described in text) is from Amnuel, Guseinov, and Rakhamimov (1979), 4hich summarizes much of the older X-ray literature. Non-X-ray cross identifications were made on several bases. Whenever an identification has been firmly established, for example, by a precise position from a modulation collimator or from the Einstein Observatory, it is always shown, but so are many additional tentative identifications. Some of these have been suggested by earlier work (in which case the earlier literature appears either in Table 5 or Table 6 of the source reference) and the remainder have been found by searching the non-X-ray catalogs listed by the authors in their Table 5. Additional information on selection criteria will be found on page 647 of the source reference. Whenever an (R) appears in the last field, additional references and comments will be found in Table 6 of the source reference. Those entries are intended primarily to provide a sketch of the basic background and current state of knowledge concerning the sources, to direct users to further literature, and to clarify ambiguities. They are not intended to be a comprehensive bibliography and many references are omitted. A special effort has been made to provide cross references to other HEAO 1 literature wherever possible, since other HEAO 1 observations are simultaneous with and complementary to those in the catalog. --- RA Right ascension (RA) in degrees deg RAh RA (B1950.0) hours h RAm RA (B1950.0) minutes min RAs RA (B1950.0) seconds s DE Declination (Dec) in degrees deg DE- Declination sign --- DEd Dec (1950.0) degrees deg DEm Dec (1950.0) minutes arcmin DEs Dec (1950.0) seconds arcsec glon Galactic longitude deg glat Galactic latitude deg long Ecliptic longitude deg lat Ecliptic latitude deg RA1 Right ascension_1 The source coordinates (center of error box) are given in degrees and in sexagesimal form. The subscripted right ascensions and declinations (right ascension_1-4, declination_1-4) give the positions of the 95 percent confidence error box surrounding each source. All positions are for equinox B1950.0. deg DE1 Declination_1. deg RA2 Right ascension_2 deg DE2 Declination_2 deg RA3 Right ascension_3 deg DE3 Declination_3 deg RA4 Right ascension_4 deg DE4 Declination_4 deg area Area of error box deg2 flux Flux The apparent intensity of the source in counts/sq.cm/s for 0.5 - 25 keV. The determination of the errors is described in Section III of the source reference (Wood et al. 1984). As explained in that paper, an intensity of 10**-3. counts/sq.cm/s, which is the limiting flux in the catalog, corresponds to 3.3*10**-12 ergs/sq.cm/s in 2-10 keV, both for a Crab-like spectrum, meaning that 10**-3 counts/sq.cm/s in HEAO A-1 is equivalent to 0.20 UFU or to 0.22 muJy at 5.2 keV, again for a Crab-like spectrum. cm2/s e_flux Flux error cm2/s name2 Alternate designation (X-ray) The first seven fields (bytes 150-239) contain alternate designations of each source in other X-ray catalogs, while the last four fields are for non-X-ray cross identifications. Catalog identifications and references are given in Table 5 of the source paper. Cross identifications were selected according to certain criteria. For X-ray catalogs (4U, 2A, 1M, etc.), where error boxes of up to several degrees are sometimes reported, the cross reference is given whenever the other error box intersects the HEAO A-1 error box. Identifiers are also given in certain cases where boxes do not strictly intersect but are sufficiently close to suggest a possible relationship. The criterion used is that the separation between box centers must be less than the sum of the two largest dimensions. The designation XRS (not included in Table 5, but described in text) is from Amnuel, Guseinov, and Rakhamimov (1979), 4hich summarizes much of the older X-ray literature. Non-X-ray cross identifications were made on several bases. Whenever an identification has been firmly established, for example, by a precise position from a modulation collimator or from the Einstein Observatory, it is always shown, but so are many additional tentative identifications. Some of these have been suggested by earlier work (in which case the earlier literature appears either in Table 5 or Table 6 of the source reference) and the remainder have been found by searching the non-X-ray catalogs listed by the authors in their Table 5. Additional information on selection criteria will be found on page 647 of the source reference. Whenever an (R) appears in the last field, additional references and comments will be found in Table 6 of the source reference. Those entries are intended primarily to provide a sketch of the basic background and current state of knowledge concerning the sources, to direct users to further literature, and to clarify ambiguities. They are not intended to be a comprehensive bibliography and many references are omitted. A special effort has been made to provide cross references to other HEAO 1 literature wherever possible, since other HEAO 1 observations are simultaneous with and complementary to those in the catalog. --- name3 Alternate designation (X-ray) The first seven fields (bytes 150-239) contain alternate designations of each source in other X-ray catalogs, while the last four fields are for non-X-ray cross identifications. Catalog identifications and references are given in Table 5 of the source paper. Cross identifications were selected according to certain criteria. For X-ray catalogs (4U, 2A, 1M, etc.), where error boxes of up to several degrees are sometimes reported, the cross reference is given whenever the other error box intersects the HEAO A-1 error box. Identifiers are also given in certain cases where boxes do not strictly intersect but are sufficiently close to suggest a possible relationship. The criterion used is that the separation between box centers must be less than the sum of the two largest dimensions. The designation XRS (not included in Table 5, but described in text) is from Amnuel, Guseinov, and Rakhamimov (1979), 4hich summarizes much of the older X-ray literature. Non-X-ray cross identifications were made on several bases. Whenever an identification has been firmly established, for example, by a precise position from a modulation collimator or from the Einstein Observatory, it is always shown, but so are many additional tentative identifications. Some of these have been suggested by earlier work (in which case the earlier literature appears either in Table 5 or Table 6 of the source reference) and the remainder have been found by searching the non-X-ray catalogs listed by the authors in their Table 5. Additional information on selection criteria will be found on page 647 of the source reference. Whenever an (R) appears in the last field, additional references and comments will be found in Table 6 of the source reference. Those entries are intended primarily to provide a sketch of the basic background and current state of knowledge concerning the sources, to direct users to further literature, and to clarify ambiguities. They are not intended to be a comprehensive bibliography and many references are omitted. A special effort has been made to provide cross references to other HEAO 1 literature wherever possible, since other HEAO 1 observations are simultaneous with and complementary to those in the catalog. --- name4 Alternate designation (X-ray) The first seven fields (bytes 150-239) contain alternate designations of each source in other X-ray catalogs, while the last four fields are for non-X-ray cross identifications. Catalog identifications and references are given in Table 5 of the source paper. Cross identifications were selected according to certain criteria. For X-ray catalogs (4U, 2A, 1M, etc.), where error boxes of up to several degrees are sometimes reported, the cross reference is given whenever the other error box intersects the HEAO A-1 error box. Identifiers are also given in certain cases where boxes do not strictly intersect but are sufficiently close to suggest a possible relationship. The criterion used is that the separation between box centers must be less than the sum of the two largest dimensions. The designation XRS (not included in Table 5, but described in text) is from Amnuel, Guseinov, and Rakhamimov (1979), 4hich summarizes much of the older X-ray literature. Non-X-ray cross identifications were made on several bases. Whenever an identification has been firmly established, for example, by a precise position from a modulation collimator or from the Einstein Observatory, it is always shown, but so are many additional tentative identifications. Some of these have been suggested by earlier work (in which case the earlier literature appears either in Table 5 or Table 6 of the source reference) and the remainder have been found by searching the non-X-ray catalogs listed by the authors in their Table 5. Additional information on selection criteria will be found on page 647 of the source reference. Whenever an (R) appears in the last field, additional references and comments will be found in Table 6 of the source reference. Those entries are intended primarily to provide a sketch of the basic background and current state of knowledge concerning the sources, to direct users to further literature, and to clarify ambiguities. They are not intended to be a comprehensive bibliography and many references are omitted. A special effort has been made to provide cross references to other HEAO 1 literature wherever possible, since other HEAO 1 observations are simultaneous with and complementary to those in the catalog. --- name5 Alternate designation (X-ray) The first seven fields (bytes 150-239) contain alternate designations of each source in other X-ray catalogs, while the last four fields are for non-X-ray cross identifications. Catalog identifications and references are given in Table 5 of the source paper. Cross identifications were selected according to certain criteria. For X-ray catalogs (4U, 2A, 1M, etc.), where error boxes of up to several degrees are sometimes reported, the cross reference is given whenever the other error box intersects the HEAO A-1 error box. Identifiers are also given in certain cases where boxes do not strictly intersect but are sufficiently close to suggest a possible relationship. The criterion used is that the separation between box centers must be less than the sum of the two largest dimensions. The designation XRS (not included in Table 5, but described in text) is from Amnuel, Guseinov, and Rakhamimov (1979), 4hich summarizes much of the older X-ray literature. Non-X-ray cross identifications were made on several bases. Whenever an identification has been firmly established, for example, by a precise position from a modulation collimator or from the Einstein Observatory, it is always shown, but so are many additional tentative identifications. Some of these have been suggested by earlier work (in which case the earlier literature appears either in Table 5 or Table 6 of the source reference) and the remainder have been found by searching the non-X-ray catalogs listed by the authors in their Table 5. Additional information on selection criteria will be found on page 647 of the source reference. Whenever an (R) appears in the last field, additional references and comments will be found in Table 6 of the source reference. Those entries are intended primarily to provide a sketch of the basic background and current state of knowledge concerning the sources, to direct users to further literature, and to clarify ambiguities. They are not intended to be a comprehensive bibliography and many references are omitted. A special effort has been made to provide cross references to other HEAO 1 literature wherever possible, since other HEAO 1 observations are simultaneous with and complementary to those in the catalog. --- name6 Alternate designation (X-ray) The first seven fields (bytes 150-239) contain alternate designations of each source in other X-ray catalogs, while the last four fields are for non-X-ray cross identifications. Catalog identifications and references are given in Table 5 of the source paper. Cross identifications were selected according to certain criteria. For X-ray catalogs (4U, 2A, 1M, etc.), where error boxes of up to several degrees are sometimes reported, the cross reference is given whenever the other error box intersects the HEAO A-1 error box. Identifiers are also given in certain cases where boxes do not strictly intersect but are sufficiently close to suggest a possible relationship. The criterion used is that the separation between box centers must be less than the sum of the two largest dimensions. The designation XRS (not included in Table 5, but described in text) is from Amnuel, Guseinov, and Rakhamimov (1979), 4hich summarizes much of the older X-ray literature. Non-X-ray cross identifications were made on several bases. Whenever an identification has been firmly established, for example, by a precise position from a modulation collimator or from the Einstein Observatory, it is always shown, but so are many additional tentative identifications. Some of these have been suggested by earlier work (in which case the earlier literature appears either in Table 5 or Table 6 of the source reference) and the remainder have been found by searching the non-X-ray catalogs listed by the authors in their Table 5. Additional information on selection criteria will be found on page 647 of the source reference. Whenever an (R) appears in the last field, additional references and comments will be found in Table 6 of the source reference. Those entries are intended primarily to provide a sketch of the basic background and current state of knowledge concerning the sources, to direct users to further literature, and to clarify ambiguities. They are not intended to be a comprehensive bibliography and many references are omitted. A special effort has been made to provide cross references to other HEAO 1 literature wherever possible, since other HEAO 1 observations are simultaneous with and complementary to those in the catalog. --- name7 Alternate designation (X-ray) The first seven fields (bytes 150-239) contain alternate designations of each source in other X-ray catalogs, while the last four fields are for non-X-ray cross identifications. Catalog identifications and references are given in Table 5 of the source paper. Cross identifications were selected according to certain criteria. For X-ray catalogs (4U, 2A, 1M, etc.), where error boxes of up to several degrees are sometimes reported, the cross reference is given whenever the other error box intersects the HEAO A-1 error box. Identifiers are also given in certain cases where boxes do not strictly intersect but are sufficiently close to suggest a possible relationship. The criterion used is that the separation between box centers must be less than the sum of the two largest dimensions. The designation XRS (not included in Table 5, but described in text) is from Amnuel, Guseinov, and Rakhamimov (1979), 4hich summarizes much of the older X-ray literature. Non-X-ray cross identifications were made on several bases. Whenever an identification has been firmly established, for example, by a precise position from a modulation collimator or from the Einstein Observatory, it is always shown, but so are many additional tentative identifications. Some of these have been suggested by earlier work (in which case the earlier literature appears either in Table 5 or Table 6 of the source reference) and the remainder have been found by searching the non-X-ray catalogs listed by the authors in their Table 5. Additional information on selection criteria will be found on page 647 of the source reference. Whenever an (R) appears in the last field, additional references and comments will be found in Table 6 of the source reference. Those entries are intended primarily to provide a sketch of the basic background and current state of knowledge concerning the sources, to direct users to further literature, and to clarify ambiguities. They are not intended to be a comprehensive bibliography and many references are omitted. A special effort has been made to provide cross references to other HEAO 1 literature wherever possible, since other HEAO 1 observations are simultaneous with and complementary to those in the catalog. --- name8 Alternate designation (X-ray) The first seven fields (bytes 150-239) contain alternate designations of each source in other X-ray catalogs, while the last four fields are for non-X-ray cross identifications. Catalog identifications and references are given in Table 5 of the source paper. Cross identifications were selected according to certain criteria. For X-ray catalogs (4U, 2A, 1M, etc.), where error boxes of up to several degrees are sometimes reported, the cross reference is given whenever the other error box intersects the HEAO A-1 error box. Identifiers are also given in certain cases where boxes do not strictly intersect but are sufficiently close to suggest a possible relationship. The criterion used is that the separation between box centers must be less than the sum of the two largest dimensions. The designation XRS (not included in Table 5, but described in text) is from Amnuel, Guseinov, and Rakhamimov (1979), 4hich summarizes much of the older X-ray literature. Non-X-ray cross identifications were made on several bases. Whenever an identification has been firmly established, for example, by a precise position from a modulation collimator or from the Einstein Observatory, it is always shown, but so are many additional tentative identifications. Some of these have been suggested by earlier work (in which case the earlier literature appears either in Table 5 or Table 6 of the source reference) and the remainder have been found by searching the non-X-ray catalogs listed by the authors in their Table 5. Additional information on selection criteria will be found on page 647 of the source reference. Whenever an (R) appears in the last field, additional references and comments will be found in Table 6 of the source reference. Those entries are intended primarily to provide a sketch of the basic background and current state of knowledge concerning the sources, to direct users to further literature, and to clarify ambiguities. They are not intended to be a comprehensive bibliography and many references are omitted. A special effort has been made to provide cross references to other HEAO 1 literature wherever possible, since other HEAO 1 observations are simultaneous with and complementary to those in the catalog. --- name9 Alternate designation (non-X-ray) The first seven fields (bytes 150-239) contain alternate designations of each source in other X-ray catalogs, while the last four fields are for non-X-ray cross identifications. Catalog identifications and references are given in Table 5 of the source paper. Cross identifications were selected according to certain criteria. For X-ray catalogs (4U, 2A, 1M, etc.), where error boxes of up to several degrees are sometimes reported, the cross reference is given whenever the other error box intersects the HEAO A-1 error box. Identifiers are also given in certain cases where boxes do not strictly intersect but are sufficiently close to suggest a possible relationship. The criterion used is that the separation between box centers must be less than the sum of the two largest dimensions. The designation XRS (not included in Table 5, but described in text) is from Amnuel, Guseinov, and Rakhamimov (1979), 4hich summarizes much of the older X-ray literature. Non-X-ray cross identifications were made on several bases. Whenever an identification has been firmly established, for example, by a precise position from a modulation collimator or from the Einstein Observatory, it is always shown, but so are many additional tentative identifications. Some of these have been suggested by earlier work (in which case the earlier literature appears either in Table 5 or Table 6 of the source reference) and the remainder have been found by searching the non-X-ray catalogs listed by the authors in their Table 5. Additional information on selection criteria will be found on page 647 of the source reference. Whenever an (R) appears in the last field, additional references and comments will be found in Table 6 of the source reference. Those entries are intended primarily to provide a sketch of the basic background and current state of knowledge concerning the sources, to direct users to further literature, and to clarify ambiguities. They are not intended to be a comprehensive bibliography and many references are omitted. A special effort has been made to provide cross references to other HEAO 1 literature wherever possible, since other HEAO 1 observations are simultaneous with and complementary to those in the catalog. --- name10 Alternate designation (non-X-ray) The first seven fields (bytes 150-239) contain alternate designations of each source in other X-ray catalogs, while the last four fields are for non-X-ray cross identifications. Catalog identifications and references are given in Table 5 of the source paper. Cross identifications were selected according to certain criteria. For X-ray catalogs (4U, 2A, 1M, etc.), where error boxes of up to several degrees are sometimes reported, the cross reference is given whenever the other error box intersects the HEAO A-1 error box. Identifiers are also given in certain cases where boxes do not strictly intersect but are sufficiently close to suggest a possible relationship. The criterion used is that the separation between box centers must be less than the sum of the two largest dimensions. The designation XRS (not included in Table 5, but described in text) is from Amnuel, Guseinov, and Rakhamimov (1979), 4hich summarizes much of the older X-ray literature. Non-X-ray cross identifications were made on several bases. Whenever an identification has been firmly established, for example, by a precise position from a modulation collimator or from the Einstein Observatory, it is always shown, but so are many additional tentative identifications. Some of these have been suggested by earlier work (in which case the earlier literature appears either in Table 5 or Table 6 of the source reference) and the remainder have been found by searching the non-X-ray catalogs listed by the authors in their Table 5. Additional information on selection criteria will be found on page 647 of the source reference. Whenever an (R) appears in the last field, additional references and comments will be found in Table 6 of the source reference. Those entries are intended primarily to provide a sketch of the basic background and current state of knowledge concerning the sources, to direct users to further literature, and to clarify ambiguities. They are not intended to be a comprehensive bibliography and many references are omitted. A special effort has been made to provide cross references to other HEAO 1 literature wherever possible, since other HEAO 1 observations are simultaneous with and complementary to those in the catalog. --- name11 Alternate designation (non-X-ray) The first seven fields (bytes 150-239) contain alternate designations of each source in other X-ray catalogs, while the last four fields are for non-X-ray cross identifications. Catalog identifications and references are given in Table 5 of the source paper. Cross identifications were selected according to certain criteria. For X-ray catalogs (4U, 2A, 1M, etc.), where error boxes of up to several degrees are sometimes reported, the cross reference is given whenever the other error box intersects the HEAO A-1 error box. Identifiers are also given in certain cases where boxes do not strictly intersect but are sufficiently close to suggest a possible relationship. The criterion used is that the separation between box centers must be less than the sum of the two largest dimensions. The designation XRS (not included in Table 5, but described in text) is from Amnuel, Guseinov, and Rakhamimov (1979), 4hich summarizes much of the older X-ray literature. Non-X-ray cross identifications were made on several bases. Whenever an identification has been firmly established, for example, by a precise position from a modulation collimator or from the Einstein Observatory, it is always shown, but so are many additional tentative identifications. Some of these have been suggested by earlier work (in which case the earlier literature appears either in Table 5 or Table 6 of the source reference) and the remainder have been found by searching the non-X-ray catalogs listed by the authors in their Table 5. Additional information on selection criteria will be found on page 647 of the source reference. Whenever an (R) appears in the last field, additional references and comments will be found in Table 6 of the source reference. Those entries are intended primarily to provide a sketch of the basic background and current state of knowledge concerning the sources, to direct users to further literature, and to clarify ambiguities. They are not intended to be a comprehensive bibliography and many references are omitted. A special effort has been made to provide cross references to other HEAO 1 literature wherever possible, since other HEAO 1 observations are simultaneous with and complementary to those in the catalog. --- name12 Alternate designation (non-X-ray) The first seven fields (bytes 150-239) contain alternate designations of each source in other X-ray catalogs, while the last four fields are for non-X-ray cross identifications. Catalog identifications and references are given in Table 5 of the source paper. Cross identifications were selected according to certain criteria. For X-ray catalogs (4U, 2A, 1M, etc.), where error boxes of up to several degrees are sometimes reported, the cross reference is given whenever the other error box intersects the HEAO A-1 error box. Identifiers are also given in certain cases where boxes do not strictly intersect but are sufficiently close to suggest a possible relationship. The criterion used is that the separation between box centers must be less than the sum of the two largest dimensions. The designation XRS (not included in Table 5, but described in text) is from Amnuel, Guseinov, and Rakhamimov (1979), 4hich summarizes much of the older X-ray literature. Non-X-ray cross identifications were made on several bases. Whenever an identification has been firmly established, for example, by a precise position from a modulation collimator or from the Einstein Observatory, it is always shown, but so are many additional tentative identifications. Some of these have been suggested by earlier work (in which case the earlier literature appears either in Table 5 or Table 6 of the source reference) and the remainder have been found by searching the non-X-ray catalogs listed by the authors in their Table 5. Additional information on selection criteria will be found on page 647 of the source reference. Whenever an (R) appears in the last field, additional references and comments will be found in Table 6 of the source reference. Those entries are intended primarily to provide a sketch of the basic background and current state of knowledge concerning the sources, to direct users to further literature, and to clarify ambiguities. They are not intended to be a comprehensive bibliography and many references are omitted. A special effort has been made to provide cross references to other HEAO 1 literature wherever possible, since other HEAO 1 observations are simultaneous with and complementary to those in the catalog. --- Nancy G. Roman ADC/SSDOO 1995May08Appreciation is expressed to Kent Wood for communicating about the catalog in 1986 and for supplying multiple copies of the source paper. Dr. Warren also thanks Dr. Wood for reviewing and commenting on a draft version of this document. The help of Jonathan McDowell of the Harvard-Smithsonian Center for Astrophysics is also gratefully acknowledged. Dr. McDowell requested a machine-readable copy of the catalog and made suggestions about the proposed format, including the elimination of the redundant error box positions in sexagesimal form. The catalog was edited and the documentation prepared by Dr. Wayne Warren. It was translated from Script to ASCII and put in the current standard form by the undersigned. UNKNOWN UNKNOWN The HEAO A-1 X-Ray Source Catalog was received on magnetic tape by the National Space Science Data Center on 20 July 1984 from Dr. Kent S. Wood of the Naval Research Laboratory. The tape was in VAX VMS BACKUP format with variable length logical and physical records, plus special control words (logical record length of each record in the first four bytes.) A program was written to convert the records to fixed length and the tape file was processed to disk storage on the IBM 3081 computer of the NASA Space and Earth Sciences Computing Center at GSFC. The format of the file was identical to Table 4 of the published catalog, meaning that there were 10 sources per group (page in the published catalog), separated by column headings and blank records, etc. All blank, text, and separator records were removed with an editor, leaving just four records per source. A format was designed that rearranged the data in logical order for a single record per source structure, and a program was written and executed to reformat the data. The advantages of the single record per source structure are that all records are entirely uniform and the catalog can be sorted and searched easily. The original catalog contained the error box positions in both decimal and sexagesimal form. The latter data were omitted during the conversion in order to decrease the final record length, since the sexagesimal data can be reconstructed easily from the decimal positions given. VII_80.xml