Browse
this table...

RASS2RXS - Second ROSAT All-Sky Survey Point Source Catalog (2RXS)

HEASARC
Archive

Overview

This database table contains the Second ROSAT All-Sky Survey Point Source Catalog (2RXS). This is the second publicly released ROSAT catalog of point-like sources obtained from the ROSAT All-Sky Survey (RASS) observations performed with the Position-Sensitive Proportional Counter (PSPC) between June 1990 and August 1991. It is an extended, revised, and combined version of the RASS Bright and Faint Source Catalogs. Utilizing the latest RASS processing, this catalog includes more than 135,000 X-ray detections in the 0.1-2.4 keV energy band down to a likelihood threshold of 6.5.

Catalog Bibcode

2016A&A...588A.103B

References

Second ROSAT all-sky survey (2RXS) source catalog.
    Boller T., Freyberg M.J., Truemper J., Haberl F., Voges W., Nandra K.
    <Astron. Astrophys. 588, A103 (2016)>
    =2016A&A...588A.103B        (SIMBAD/NED BibCode)

Provenance

This table was created by the HEASARC in March, 2017, based on CDS Catalog J/A+A/588/A103 file cat2rxs.dat.gz.

Parameters

Entry_Number
A sequential identification number for each entry in catalog.

Name
The IAU source designation.

Skyfield_Number
For computational and analysis purposes, the ROSAT All-Sky Survey scans were broken up into a number of individual observing sequences called sky fields. The skyfield_number represents the RASS sequence ID number of the sky field.

Skyfield_Source_Number
The number of the individual source in a given sky field observing sequence.

Detection_Likelihood
The statistic derived from the maximum likelihood source detection analysis.

Counts
The background-corrected source counts.

Counts_Error
The error in the background-corrected source counts.

Count_Rate
The background-corrected source count rate, in counts per second.

Count_Rate_Error
The error in the background-corrected source count rate, in counts per second.

Exposure
The source exposure time in seconds.

RA
The source right ascension.

Dec
The source declination.

LII
The source galactic longitude.

BII
The source galactic latitude.

Lambda
The source ecliptic longitude, in degrees.

Beta
The source ecliptic latitude, in degrees.

Source_Extent
The source extent in image pixels.

Source_Extent_Error
The error in the source extent in image pixels.

Source_Extent_Prob
The probability of the source extent.

Hardness_Ratio_1
This hardness ratio is calculated from the source counts in the PSPC and defined as HR1 = (B-A)/(B+A), where A is the PSPC channel range 11-41 and B is the PSPC channel range 52-201. Each channel can be approximately converted to energy by multiplying the channel number by 10 eV.

Hardness_Ratio_1_Error
The error in hardness ratio 1.

Hardness_Ratio_2
This hardness ratio is calculated from the source counts in the PSPC and defined as HR2 = (D-C)/(D+C), where C is the PSPC channel range 52-90 and D is the PSPC channel range 91-201. Each channel can be approximately converted to energy by multiplying the channel number by 10 eV.

Hardness_Ratio_2_Error
The error in hardness ratio 2.

Unique_Flag
The number of the "unique" sub-image of the sky field used in the source detection. Sub-image numbers run from 1 to 9. A value of unique_flag of 0 indicates a source detected in the full-field image only.

Extended_Region_Flag
A flag which indicates that the source lies in or near a region of extended emission, such as a supernova (a value of 0 means the source lies near region of extended emission, a value of 1 means the source does not lie near a region of extended emission).

Nearby_Src_Det_Flag
A flag which indicates detection of nearby sources (0=Best).

Source_Quality_Flag
The source detection quality flag (0=Good).

Max_Amplitude
The maximum variability amplitude, calculated from the maximum count rate and the minimum count rate, and the corresponding errors for each survey light curve. The maximum amplitude variation is calculated as the difference of the maximum count rate (minus its error) and the minimum count rate (plus its error).

Mean_Count_Rate
The mean source count rate, in counts per second.

Mean_Count_Rate_Error
The standard deviation of mean source count rate in counts per second.

Lc_Counts
The number of counts calculated from the light curve analysis.

Min_Count_Rate
The minimum source count rate in counts per second.

Min_Count_Rate_Error
The error in minimum source count rate in counts per second.

Max_Count_Rate
The maximum source count rate in counts per second.

Max_Count_Rate_Error
The error in maximum source count rate in counts per second.

Lc_Chi2
The chi2 statistic derived from the light curve analysis.

Excess_Variance
The normalized excess variance calculated from the source light curve analysis. The square of the normalized excess variance is defined as

     excess_variance2 = 1/(N u2) Sum(i=1,N) [(Xi - u)2 - sigma_i2]
  
where N is the total number of counts, u the mean count rate, Xi the number in the i-th bin, and sigma_i the standard deviation of the i-th bin.

Excess_Variance_Error
The 1-sigma uncertainty in normalized excess variance. The square of the excess_variance_error is defined in equation (2) of Boller et al. 2016.

Excess_Variance_Sigma
The excess variance in units of the standard deviation, in sigma.

NH_Gal
The galactic neutral hydrogen density towards the source, in H atoms/cm2.

PLaw_NH
The calculated neutral hydrogen density for the source spectrum from the power law fit, in H atoms/cm2.

PLaw_NH_Error
The error in neutral hydrogen density derived from the power law fit to the source spectrum, in H atoms/cm2.

PLaw_Norm
The normalization derived from the power law fit to the source spectrum.

PLaw_Norm_Error
The error in normalization derived from the power law fit to the source spectrum.

PLaw_Photon_Index
The photon index derived from the power law fit to the source spectrum.

PLaw_Photon_Index_Error
The error in photon index derived from the power law fit to the source spectrum.

PLaw_Count_Rate
The source count rate derived from the power law fit to the source spectrum, in counts per second.

PLaw_Flux
The absorption-corrected flux derived from the power law fit to the source spectrum, in erg/s/cm2.

PLaw_Chi2_Reduced
The reduced chi2 statistic derived from the power law fit to the source spectrum.

PLaw_Chi2
The chi2 statistic of the power law fit to the source spectrum.

PLaw_Number_Data_Pts
The number of data points used in the power law fit to the source spectrum.

PLaw_DoF
The number of degrees of freedom in the power law fit to the source spectrum.

Mekal_NH
The neutral hydrogen density for the Mewe-Kaastra-Liedahl (mekal) thermal plasma model fit to the source spectrum in H atoms/cm2.

Mekal_NH_Error
The error in neutral hydrogen density for the mekal model fit to the source spectrum in H atoms/cm2.

Mekal_Norm
The normalization for the mekal model fit to the source spectrum .

Mekal_Norm_Error
The error in normalization for the mekal model fit to the source spectrum.

Mekal_Temperature
The temperature of the mekal model fit to the source spectrum, in keV.

Mekal_Temperature_Error
The error in temperature of the mekal model fit to the source spectrum, in keV.

Mekal_Count_Rate
The count rate obtained from the mekal model fit to the source spectrum, in counts per second.

Mekal_Flux
The absorption-corrected flux derived from the mekal model fit to the source spectrum, in ergs/cm2/s.

Mekal_Chi2_Reduced
the reduced chi2 statistic for mekal model fit to the source spectrum.

Mekal_Chi2
The chi2 statistic for the mekal model fit to the source spectrum.

Mekal_Number_Data_Pts
The number of data points used in the mekal model fit to the source spectrum.

Mekal_DoF
The number of degrees of freedom in the mekal model fit to the source spectrum.

BB_NH
The neutral hydrogen density derived from the black-body fit to the source spectrum, in H atoms/cm2.

BB_NH_Error
The error in neutral hydrogen density for the black-body fit to the source spectrum, in H atoms/cm2.

BB_Norm
The normalization for the black-body fit to the source spectrum.

BB_Norm_Error
The error in normalization for the black-body fit to the source spectrum.

BB_Temperature
The temperature of the black-body fit to the source spectrum, in keV.

BB_Temperature_Error
The error in temperature of the black-body fit to the source spectrum, in keV.

BB_Count_Rate
The count rate for the black-body fit to the source spectrum, in counts per second.

BB_Flux
The absorption-corrected flux from the black-body fit to the source spectrum, in ergs/cm2/s.

BB_Chi2_Reduced
The reduced chi2 statistic for the black-body fit to the source spectrum.

BB_Chi2
The chi2 statistic for the black-body fit to the source spectrum.

BB_Number_Data_Pts
The number of data points used in the black-body fit to the source spectrum.

BB_DoF
The number of degrees of freedom in the black-body fit to the source spectrum.

X_Pixel
The X image coordinate of the source from the local sliding cell detection on an X-ray image of 512 by 512 pixels with 45 arcsecond square pixels.

X_Pixel_Error
The 1-sigma error in the X image coordinate of the source.

Y_Pixel
The Y image coordinate of the source from the local sliding cell detection on an X-ray image of 512 by 512 pixels with 45 arcsecond square pixels.

Y_Pixel_Error
The 1-sigma error in Y image coordinate of the source.

X_Sky_Pixel
The X sky coordinate of the source from the local sliding cell detection on the X-ray sub-image given by unique_flag having 0.5 arcsecond square pixels.

Y_Sky_Pixel
The Y sky coordinate of the source from the local sliding cell detection on the X-ray sub-image given by unique_flag having 0.5 arcsecond square pixels.

Extraction_Radius
The source extraction radius in sky pixels.

Extraction_Radius_Frac
The analyzed fraction of source extraction radius.

Total_Photons
The total number of photons read from the photon events table and analyzed by maximum likelihood algorithm.

Bkg_In_Extr_Reg
The background counts in the source extraction region.

Vignetting_Factor
The vignetting correction factor for the source.

Remarks
The remarks concerning any nearby source originating from the maximum likelihood detection.

Band_A_Tot_Counts
The total counts in band A. Band A includes PSPC energy channels 11 to 41.

Band_B_Tot_Counts
The total counts in band B. Band B includes PSPC energy channels 51 to 201.

Band_C_Tot_Counts
The total counts in band C. Band C includes PSPC energy channels 52 to 90.

Band_D_Tot_Counts
The total counts in band D. Band D includes PSPC energy channels 91 to 201.

Band_A_Bkg_Counts
The background band A with other catalog entries excised. Band A includes PSPC energy channels 11 to 41.

Band_B_Bkg_Counts
The background band B with other catalog entries excised. Band B includes PSPC energy channels 51 to 201.

Band_C_Bkg_Counts
The background band C with other catalog entries excised. Band C includes PSPC energy channels 52 to 90.

Band_D_Bkg_Counts
The background band D with other catalog entries excised. Band D includes PSPC energy channels 91 to 201.

Remaining_Bkg_Area
The remaining background area in arcmin2.

Band_A_Counts
The source counts in band A. Band A includes PSPC energy channels 11 to 41.

Band_B_Counts
The source counts in band B. Band B includes PSPC energy channels 51 to 201.

Band_C_Counts
The source counts in band C. Band C includes PSPC energy channels 52 to 90.

Band_D_Counts
The source counts in band D. Band D includes PSPC energy channels 91 to 201.

XMMSL1_Number_Ctrprts
The number of counterparts in the XMM slew survey within 60 arcseconds.

XMMSL1_Nearest
The source number of the nearest counterpart to the source in the XMM Slew Survey (XMMSL1).

XMMSL1_Separation
The distance of the nearest XMMSL1 counterpart in arcseconds.

XMMSL1_Name
The source designation in the First XMM-Newton Slew Survey Catalog (XMMSL1).

XMMSL1_RA
The right ascension of the nearest XMMSL1 source.

XMMSL1_Dec
The declination of the nearest XMMSL1 source.

XMMSL1_BB_Count_Rate
The broad-band count rate for nearest XMMSL1 source in counts per second.

XMMSL1_BB_Count_Rate_Err
The broad-band count rate error of the nearest XMMSL1 source in counts per second.

XMMSL1_SB_Count_Rate
The count rate in the energy band 0.5-2keV of the nearest XMMSL1 source in counts per second.

XMMSL1_SB_Count_Rate_Err
The count rate error in the energy band 0.5-2keV of the nearest XMMSL1 source in counts per second.

ThreeXMM_Number_Ctrprts
The number of the Third XMM Newton source catalog (3XMM) counterparts within 60 arcseconds.

ThreeXMM_Nearest
The source number of the nearest counterpart to the 2RXS source in the 3XMM catalog.

ThreeXMM_Separation
The distance of the nearest 3XMM counterpart to the 2RXS source in arcseconds.

ThreeXMM_Name
The source designation of the nearest counterpart in the 3XMM catalog.

ThreeXMM_RA
The right ascension of the nearest 3XMM counterpart to the 2RXS source.

ThreeXMM_Dec
The declination of the nearest 3XMM counterpart to the 2RXS source.

ThreeXMM_Count_Rate
The EPIC count rate of the nearest 3XMM counterpart to the 2RXS source in counts per second.

ThreeXMM_Count_Rate_Err
The error on the EPIC count rate of the nearest 3XMM counterpart to the 2RXS source in counts per second.

ThreeXMM_Flux
The flux of the nearest 3XMM counterpart to the 2RXS source in ergs/cm2/s.

ThreeXMM_Flux_Error
The error of the flux of the nearest 3XMM counterpart to the 2RXS source in ergs/cm2/s.

TwoRXP_Number_Ctrprts
The number of counterparts within 300 arcsec of the 2RXS source in the Second ROSAT Pointed Source Catalog (2RXP).

TwoRXP_Nearest
The source number of the nearest counterpart in the 2RXP catalog to the 2RXS source.

TwoRXP_Separation
The distance of the nearest 2RXP counterpart from the 2RXS source in arcseconds.

TwoRXP_Name
The source designation in the 2RXP of the nearest counterpart to the 2RXS source.

TwoRXP_RA
The right ascension in the 2RXP of the nearest counterpart to the 2RXS source in degrees.

TwoRXP_Dec
The declination in the 2RXP of the nearest counterpart to the 2RXS source in degrees.

TwoRXP_Count_Rate
The count rate in the 2RXP of the nearest counterpart to the 2RXS source in counts per second.

TwoRXP_Count_Rate_Error
The error on the count rate in the 2RXP of the nearest counterpart to the 2RXS source in counts per second.

TwoRXP_Exposure
The exposure time in the 2RXP of the nearest counterpart to the 2RXS source in seconds.

TwoRXP_ObsID
The field number in the 2RXP of the nearest counterpart to the 2RXS source.

OneRXS_Number_Ctrprts
The number of counterparts within 60 arcsec in the First ROSAT All Sky Survey Point Source Catalog (1RXS).

OneRXS_Nearest
The source number of the nearest counterpart to the 2RXS source in the 1RXS catalog.

OneRXS_Separation
The distance of the nearest counterpart in the 1RXS catalog to the 2RXS source in arcseconds.

OneRXS_Name
The source designation of the nearest counterpart in the 1RXS catalog to the 2RXS source.

OneRXS_RA
The right ascension of the nearest counterpart in the 1RXS catalog to the 2RXS source.

OneRXS_Dec
The declination of the nearest counterpart in the 1RXS catalog to the 2RXS source.

OneRXS_Count_Rate
The source count rate of the nearest counterpart in the 1RXS catalog to the 2RXS source in counts per second.

OneRXS_Count_Rate_Error
The error in source count rate of the nearest counterpart in the 1RXS catalog to the 2RXS source in counts per second.

OneRXS_Counts
The background-corrected source counts of the nearest counterpart in the 1RXS catalog to the 2RXS source.

OneRXS_Counts_Error
The error in the background-corrected source counts of the nearest counterpart in the 1RXS catalog to the 2RXS source.

OneRXS_Det_Likelihood
The detection likelihood of the nearest counterpart in the 1RXS catalog to the 2RXS source.

OneRXS_Exposure
The source exposure time of the nearest counterpart in the 1RXS catalog to the 2RXS source in seconds.

OneRXS_HR_1
The 1RXS hardness ratio 1 of the nearest counterpart in the 1RXS catalog to the 2RXS source.

OneRXS_HR_1_Error
The error in HR1 of the nearest counterpart in the 1RXS catalog to the 2RXS source.

OneRXS_HR_2
The hardness ratio 2 of the nearest counterpart in the 1RXS catalog to the 2RXS source.

OneRXS_HR_2_Error
The error in HR2 of the nearest counterpart in the 1RXS catalog to the 2RXS source.

Veron_Number_Ctrprts
The number of counterparts in the Veron-Cetty and Veron (VV10) Catalog of Quasars and Active Galactic Nuclei (2010) within 60 arcsec of the 2RXS source.

Veron_Nearest
The source number of VV10 nearest counterpart to the 2RXS source.

Veron_Separation
The distance of the nearest VV10 counterpart to the 2RXS source in arcseconds.

Veron_Name
The VV10 source designation of the nearest VV10 counterpart to the 2RXS source.

Veron_Type
The flag that indicates object type of the nearest VV10 counterpart to the 2RXS source: B = Blazar; A = AGN; Q = quasar.

Veron_Vmag
The V magnitude of the nearest VV10 counterpart to the 2RXS source.

Veron_Redshift
The redshift of the nearest VV10 counterpart to the 2RXS source.

Veron_Source_Number
The running catalog source number in the VV10 catalog of the nearest VV10 counterpart to the 2RXS source.

Veron_RA
The right ascension of the nearest VV10 counterpart to the 2RXS source.

Veron_Dec
The declination of the nearest VV10 counterpart to the 2RXS source.

Tycho2_Number_Ctrprts
The number of counterparts to the 2RXS source in the Tycho-2 catalog of the 2.5 Million Brightest Stars (Hog et al. 2000).

Tycho2_Nearest
The source number of the nearest Tycho-2 catalog counterpart to the 2RXS source.

Tycho2_Separation
The distance to the nearest Tycho-2 catalog counterpart to the 2RXS source in arcseconds.

Tycho2_RA
The right ascension of the nearest Tycho-2 catalog counterpart to the 2RXS source.

Tycho2_Dec
The declination of the Nearest Tycho-2 catalog counterpart to the 2RXS source.

Tycho2_Source_Number
The Tycho-2 catalog source number of the nearest Tycho-2 catalog counterpart to the 2RXS source.

Tycho2_Vmag
The Tycho-2 VT magnitude of the nearest Tycho-2 catalog counterpart to the 2RXS source.

Tycho2_Bmag
The Tycho-2 BT magnitude of the nearest Tycho-2 catalog counterpart to the 2RXS source.

Tycho2_Tyc1_Number
The First Hipparcos and Tycho Catalog (ESA 1997) source number of the nearest Tycho-2 catalog counterpart to the 2RXS source.

Tycho2_Tyc2_Number
The Tycho-2 catalog identification number of the nearest Tycho-2 catalog counterpart to the 2RXS source. The Tycho-2 identifier is constructed from the GSC region number (TYC1), the running number within the region (TYC2) and a component identifier (TYC3) which is normally 1. Some non-GSC running numbers were constructed for the first Tycho catalog and for Tycho-2. The recommended star designation contains a hyphen between the TYC numbers, e.g. TYC 1-13-1.

Tycho2_Tyc3_Number
The Tycho-2 catalog identification number of the nearest Tycho-2 catalog counterpart to the 2RXS source. The Tycho-2 identifier is constructed from the GSC region number (TYC1), the running number within the region (TYC2) and a component identifier (TYC3) which is normally 1. Some non-GSC running numbers were constructed for the first Tycho catalog and for Tycho-2. The recommended star designation contains a hyphen between the TYC numbers, e.g. TYC 1-13-1.

BSC_Number_Ctrprts
The number of counterparts in The Bright Star Catalog (BSC; Hoffleit, D. and Warren, Jr., W.H., 1991) within 300 arcsec of the 2RXS source

BSC_Nearest
The source number of the nearest BSC counterpart to the 2RXS source.

BSC_Separation
The distance of the nearest BSC counterpart to the 2RXS source in arcseconds.

BSC_RA
The right ascension of the nearest BSC counterpart to the 2RXS source.

BSC_Dec
The declination of the nearest BSC counterpart to the 2RXS source.

BSC_Vmag
The V magnitude of the nearest BSC counterpart to the 2RXS source.

BSC_Spect_Type
The spectral type of the nearest BSC counterpart to the 2RXS source.

BSC_Source_Number
The catalog source number of the nearest BSC counterpart to the 2RXS source.

HD_Source_Number
The Henry Draper Catalog source number of the nearest BSC counterpart to the 2RXS source.

HMXB_Number_Ctrprts
The number of counterparts in the Catalog of High-Mass X-Ray Binaries in the Galaxy (HMXBCAT; Liu Q.Z., van Paradijs J., van den Heuvel E.P.J., 2006) within 60 arcsec of the 2RXS source.

HMXB_Nearest
The source number of the nearest HMXBCAT counterpart to the 2RXS source.

HMXB_Separation
The distance of the nearest HMXBCAT counterpart to the 2RXS source in arcseconds.

HMXB_Name
The source designation of the nearest HMXBCAT counterpart to the 2RXS source.

HMXB_Alt_Name
The alternative source designation of the nearest HMXBCAT counterpart to the 2RXS source.

HMXB_RA
The right ascension of the nearest HMXBCAT counterpart to the 2RXS source.

HMXB_Dec
The declination of the nearest HMXBCAT counterpart to the 2RXS source.

HMXB_Vmag
The V magnitude of the nearest HMXBCAT counterpart to the 2RXS source.

LMXB_Number_Ctrprts
The number of counterparts in the Fourth Edition of the Catalog of Low-Mass X-Ray Binaries in the Galaxy and the Magellanic Clouds (LMXBCAT; Liu Q.Z., van Paradijs J., van den Heuvel E.P.J., 2007) within 60 arcsec of the 2RXS source.

LMXB_Nearest
The LMXBCAT source number of the nearest counterpart to the 2RXS source.

LMXB_Separation
The distance of the nearest LMXBCAT counterpart and the 2RXS source in arcseconds.

LMXB_Name
The LMXBCAT source designation of the nearest counterpart to the 2RXS source.

LMXB_Alt_Name
The LMXBCAT alternative source designation of the nearest counterpart to the 2RXS source.

LMXB_RA
The right ascension of the nearest LMXBCAT counterpart to the 2RXS source.

LMXB_Dec
The declination of the nearest LMXBCAT counterpart to the 2RXS source.

LMXB_Vmag
The V magnitude of the nearest LMXBCAT counterpart to the 2RXS source.

ATNF_Number_Ctrprts
The number of counterparts in the Australia Telescope National Facility Pulsar Catalog (ATNF; R.N. Manchester, G.B. Hobbs, A. Teoh and M. Hobbs 2005) within 60 arcsec of the 2RXS source.

ATNF_Nearest
The source number of the nearest ATNF counterpart to the 2RXS source.

ATNF_Separation
The distance of the nearest ATNF counterpart to the 2RXS source in arcseconds.

ATNF_Name
The ATNF designation of the nearest ATNF counterpart to the 2RXS source.

ATNF_RA
The ATNF right ascension of the nearest ATNF counterpart to the 2RXS source.

ATNF_Dec
The ATNF declination of the nearest ATNF counterpart to the 2RXS source.

ATNF_Pulsar_Type
The ATNF pulsar type of the nearest ATNF counterpart to the 2RXS source. See http://www.atnf.csiro.au/research/pulsar/psrcat/psrcat_help.html#psr_types.

ATNF_Pulse_Period
The ATNF pulse period of the nearest ATNF counterpart to the 2RXS source in seconds.

Fuhr_Number_Ctrprts
The number of counterparts in the Catalog of Variable Sources (FUH; Fuhrmeister and Schmitt 2003) within 60 arcsec of the 2RXS source.

Fuhr_Nearest
The FUH source number of the nearest FUH counterpart to the 2RXS source.

Fuhr_Separation
The distance of the nearest FUH counterpart to the 2RXS source in arcseconds.

Fuhr_Name
The FUH source designation of the nearest FUH counterpart to the 2RXS source.

Fuhr_RA
The FUH right ascension of the nearest FUH counterpart to the 2RXS source.

Fuhr_Dec
The FUH declination of the nearest FUH counterpart to the 2RXS source.

Fuhr_Source_Number
The FUH object number of the nearest FUH counterpart to the 2RXS source.

OneSXPS_Number_Ctrprts
The number of counterparts in the Deep Swift X-Ray Telescope Point Source Catalog (1SXPS; Evans et al. 2014) within 120 arcsec of the 2RXS source.

OneSXPS_Nearest
The source number of the nearest 1SXPS counterpart to the 2RXS source.

OneSXPS_Separation
The distance of the nearest 1SXPS counterpart to the 2RXS source in arcseconds.

OneSXPS_RA
The 1SXPS right ascension of the nearest 1SXPS counterpart to the 2RXS source.

OneSXPS_Dec
The 1SXPS declination of the nearest 1SXPS counterpart to the 2RXS source.

OneSXPS_Exposure
The 1SXPS exposure time of the nearest 1SXPS counterpart to the 2RXS source in seconds.

OneSXPS_Det_Flag
The 1SXPS total (0.3-10keV) Band detection flag of the nearest 1SXPS counterpart to the 2RXS source. See http://www.swift.ac.uk/1SXPS/docs.php#sources_flag.

OneSXPS_Total_Det_Flag
The 1SXPS total (0.3-10keV) band detection flag of the nearest 1SXPS counterpart to the 2RXS source. See http://www.swift.ac.uk/1SXPS/docs.php#sources_flag.

OneSXPS_Soft_Det_Flag
The 1SXPS soft (0.3-1keV) band detection flag of the nearest 1SXPS counterpart to the 2RXS source. See http://www.swift.ac.uk/1SXPS/docs.php#sources_flag.

OneSXPS_Medium_Det_Flag
The 1SXPS medium (2-2keV) band detection flag of the nearest 1SXPS counterpart to the 2RXS source. See http://www.swift.ac.uk/1SXPS/docs.php#sources_flag.

OneSXPS_Hard_Det_Flag
The 1SXPS hard (2-10keV) band detection flag of the nearest 1SXPS counterpart to the 2RXS source. See http://www.swift.ac.uk/1SXPS/docs.php#sources_flag.

OneSXPS_Source_Number
The source number in 1SXPS catalog of the nearest 1SXPS counterpart to the 2RXS source.

OneSXPS_Count_Rate
The swift total (0.3-10 keV)-Band Count Rate of the Nearest 1SXPS counterpart to the 2RXS source in counts per second.

OneSXPS_Count_Rate_Error
The error in swift total (0.3-10 keV)-band count rate of the nearest 1SXPS counterpart to the 2RXS source in counts per second.

OneRXH_Number_Ctrprts
The number of counterparts in the ROSAT Source Catalog of Pointed Observations with the High Resolution Imager (1RXH; ROSAT Team, 2000) within 120 arcsec of the 2RXS Source.

OneRXH_Nearest
The source number of the nearest 1RXH counterpart to the 2RXS Source.

OneRXH_Separation
The distance of the nearest 1RXH counterpart to the 2RXS source in arcseconds.

OneRXH_Name
The 1RXH source designation of the nearest 1RXH counterpart to the 2RXS source.

OneRXH_RA
The 1RXH right ascension of the nearest 1RXH counterpart to the 2RXS source.

OneRXH_Dec
The 1RXH declination of the nearest 1RXH counterpart to the 2RXS source.

OneRXH_Count_Rate
The 1RXH source count rate of the nearest 1RXH counterpart to the 2RXS source in counts per second.

OneRXH_Count_Rate_Error
The error in 1RXH source count rate of the nearest 1RXH counterpart to the 2RXS source in counts per second.

OneRXH_Exposure
The 1RXH source exposure time of the nearest 1RXH counterpart to the 2RXS source in seconds.

OneRXH_SNR
The 1RXH signal-to-noise ratio of the nearest 1RXH counterpart to the 2RXS source.

Flem_Number_Ctrprts
The number of counterparts in the Catalog of ROSAT White Dwarfs (Fleming et al. 1996) within 60 arcseconds of the 2RXS source.

Flem_Nearest
The Fleming Catalog Source Number of the nearest Fleming counterpart to the 2RXS source.

Flem_Separation
The distance of the nearest Fleming counterpart to the 2RXS source in arcseconds.

Flem_Name
The source designation in the Fleming catalog of the nearest Fleming counterpart to the 2RXS source.

Flem_RA
The Fleming right ascension of the nearest Fleming counterpart to the 2RXS source.

Flem_Dec
The Fleming declination of the nearest Fleming counterpart to the 2RXS source.

Flem_Type
The Fleming object type of the nearest Fleming counterpart to the 2RXS source.

Flem_WFC_Detection_Flag
This flag is Y if there is a Wide Field Camera detection of the nearest Fleming counterpart to the 2RXS source, N otherwise.

Flem_Count_Rate
The Fleming count rate of the nearest Fleming counterpart to the 2RXS source in counts per second.

Flem_Count_Rate_Error
The error in the Fleming count rate of the nearest Fleming counterpart to the 2RXS source in counts per second.

WDCat_Number_Ctrprts
The number of counterparts in the Catalog of Spectroscopically Identified White Dwarfs (WD; McCook et al. 2014; see http://www.astronomy.villanova.edu/WDCatalog/index.html) within 60 arcsec of the 2RXS source.

WDCat_Nearest
The source number of the nearest WD counterpart to the 2RXS source.

WDCat_Separation
The distance of the nearest WD counterpart to the 2RXS source in arcseconds.

WDCat_Name
The WD catalog source designation of the nearest WD counterpart to the 2RXS source.

WDCat_RA
The WD right ascension of the nearest WD counterpart to the 2RXS source.

WDCat_Dec
The WD declination of the nearest WD counterpart to the 2RXS source.

WDCat_Vmag
The WD V magnitude of the nearest WD counterpart to the 2RXS source.

WDCat_Vsphot
The WD V multichannel spectrophotometry magnitude of the nearest WD counterpart to the 2RXS source.

SDSS_Number_Ctrprts
The number of the nearest counterpart in the The Sloan Digital Sky Survey (SDSS) Photometric Catalog (SDSS).

SDSS_Nearest
The source number of the nearest SDSS counterpart to the 2RXS source.

SDSS_Separation
The distance to nearest SDSS counterpart to the 2RXS source in arcseconds.

SDSS_Name
The SDSS object designation of the nearest SDSS counterpart to the 2RXS source.

SDSS_RA
The SDSS right ascension of the nearest SDSS counterpart to the 2RXS source.

SDSS_Dec
The SDSS declination of the nearest SDSS counterpart to the 2RXS source.

SDSS_Lambda
The SDSS ecliptic longitude of the nearest SDSS counterpart to the 2RXS source in degrees.

SDSS_Beta
The SDSS ecliptic latitude of the nearest SDSS counterpart to the 2RXS source in degrees.

TwoRXS_Number_Ctrprts
The number of 2RXS Sources within 60 arcsec of the identified 2RXS source.

TwoRXS_Nearest_Src_Num
The source number of the nearest 2RXS source to the identified 2RXS source.

TwoRXS_Nearest_Src_Index
The index of the nearest 2RXS source to the identified 2RXS Source.

TwoRXS_Separation
The distance of the nearest 2RXS source to the identified 2RXS Source in arcseconds.

TwoRXS_Skyfield_Number
The number of the sky field of the 2RXS source nearest to the identified 2RXS source.

TwoRXS_Skyfield_Src_Num
The field detection number of the 2RXS source nearest to the identified 2RXS source.

TwoRXS_Det_Likelihood
The detection likelihood of the 2RXS source nearest to the identified 2RXS source.

TwoRXS_Count_Rate
The source count rate of the 2RXS source nearest to the identified 2RXS source in counts per second.

TwoRXS_RA
The 2RXS right ascension of the 2RXS source nearest to the identified 2RXS source.

TwoRXS_Dec
The 2RXS declination of the 2RXS source nearest to the identified 2RXS source.

TwoRXS_Subfield_Det_Cell
The sub-field detection cell of the 2RXS source nearest to the identified 2RXS source.

TwoRXS_Nearby_Flag
The proximity flag of the 2RXS source nearest to the identified 2RXS Source (0=Best).

TwoRXS_Selected_Bkg
The 2RXS selected background identification flag.

TwoRXS_X_Pixel_Sky_Bkg1
The X sky coordinate of the center of background region 1 in sky pixels.

TwoRXS_Y_Pixel_Sky_Bkg1
The Y sky coordinate of the center of background region 1 in sky pixels.

TwoRXS_X_Pixel_Sky_Bkg2
The X sky coordinate of the center of background region 2 in sky pixels.

TwoRXS_Y_Pixel_Sky_Bkg2
The Y sky coordinate of the center of background region 2 in sky pixels.

OneRXS_Bkg_Count_Rate
The background count rate from the 1RXS in counts per second.

TwoRXS_Bkg_Count_Rate
The background count rate from the 2RXS in counts per second.

Var_Flag
The variability quality flag for the background selection for lightcurves and spectra: 0=good; bit 1: sum of CM+CD<0; bit 2: background in masked region.

Count_Rate_6s
The count rate for the light curve for sources with less than 6s exposure in counts per second.

Count_Rate_6s_Error
The standard deviation of the light curve for sources with less than 6s exposure in counts per second.

Excess_Var_6s
The excess variance of the light curve for sources with less than 6s exposure.

Excess_Var_6s_Error
The uncertainty in the excess variance for light curves with less than 6s exposure.

Number_Pts_In_Lc
The number of data points in the light curve.

Number_Pts_LessThan_6s
The number of data points for light curves with less than 6s exposure.

Number_Pts_LessThan_1s
The number of data points for light curves with less than 1s exposure.

Number_Pts_GtrThan_6s
The number of data points for light curves with greater than 6s exposure.

Min_Count_Rate_6s
The minimum count rate for light curves with exposures of less than 6s in counts per second.

Max_Count_Rate_6s
The maximum count rate for light curves with exposures of less than 6s in counts per second.

Min_Count_Rate_6s_Error
The error in the minimum count rate for light curves with exposures of less than 6s in counts per second.

Max_Count_Rate_6s_Error
The error in the maximum count rate for light curves with exposures of less than 6s in counts per second.

Counts_Notused_6
The number of counts for light curves with exposures of less than 6s not used.

Excess_Var_LessThan_6
The excess variance for light curves with exposures of less than 6s.

Sum_Count_Rate_Sigma
The sum of count rate and standard deviation.

Spect_Plot_Flag
This flag is 1 if there is a graphical illustration of the spectral fit available, 0 otherwise.

Lc_Plot_Flag
This flag is 1 if there is a graphical illustration of the light curve available, 0 otherwise.

Clock_Time
The clock start time of the exposure when the source is within the field of view and the detector is on, in seconds.

Clock_End_Time
The clock end time of the exposure when the source is within the field of view and the detector on, in seconds.

Time
The UT start time of the exposure when the source is within the FOV and the detector is on.

End_Time
The UT end time of the exposure when the source is within the FOV and the detector is on.


Contact Person

Questions regarding the RASS2RXS database table can be addressed to the HEASARC User Hotline.

Page Author: Browse Software Development Team
Last Modified: 11-Apr-2017