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Fifth SWAS Public Data Release

The fifth SWAS public data release consists of a complete set of SWAS data from mission day 0049 (the first day of usable science data) to mission day 961. Mission day 0001 is defined as November 01, 1998.

New Sources in the 5 Public Release

    L1551-30
    AFGL618
    GX_MON
    NGC3576
    IVC135.5
    M101-MF83
    B68
    W28
    W28-30
    IRAS20126
    IR20126-30
    RZ_SGR
    SFO37
    IC5146
    IC5146-30
    S134
    AFGL3068

Additional data are available in the 5th relerase for these previously observed sources:

    OMC-1
    DR21
    G267.9-1.1
    BHR71
    S152
    IC1396E
    NGC1333_SVS13
    W_HYA
    CIT_6
    B5
    L1551
    G333.1-0.4
    RHO_OPH_A
    N2264SC-S
    OH231.8+4.2
    W51
    S87
    W49
    G265.1+1.5
    HELIX
    TWHYA
    AFGL2688

Known Issues With Data Files

  • There are duplicate entries in the FITS-format archive where individual positions of several sources appear to have duplicate, identical grand co-adds for each spectra line (in other words, the line spectra are 725x2 in dimension instead of 725x1). This appears to be an IRAF problem. The SWAS-Science Operations Center (SWAS-SOC) will try to correct this problem in a future public release.
  • As with public data release #3, the SWAS Science Operations Center has chosen not to provide FITS-format grand co-add files for moving targets/time-variable targets at this time. Such a grand co-add would be misleading and confusing to archive users. The SWAS SOC recommends that archive users work with the Class-format files for these targets.

    Moving Targets/Time-Variable Targets

             Comet Lee (c_lee)
             Comet McNaught (c_mcnaught)
             Jupiter (jupiter)
             Mars (mars)
             Saturn (saturn)

A Note On Nomenclature:

SWAS targets are identified by the science team internally using nomenclature that often conveys information about the nature of the observation as well as abbreviations of more standard naming schemes in order to accommodate the limited number characters that can be used for target names in the source database.

Although the SWAS naming scheme does not follow any formal astronomical nomenclature standards, most target names are easily recognizable without explanation. Source names that may cause confusion are given below:

L1551-30: Lynds 1551 observed with -30 km/sec LO shift
IRAS20126: IRAS 20126+4104
IR20126-30: IRAS 20126+4104 with a -30 km/sec LO shift
C_LEE: Comet Lee
DR21-OH: DR21(OH)
L1228o: Lynds 1228 (IRAS 20582+7724 outflow)
SER_SM1: Serpens Submillimeter Source 1

This notes have been prepared by IRSA from release notes provided by the archive scientist for SWAS, Dr. Brian M. Patten

July 18, 2002