ISO LWS Data for NGC 4559
(1) Object: "NGC 4559"
(2) TDT: 18402027
(3) Observing Mode: L02
(4) OLP Version: 7.0
(5) Observer_id: "FCOMBES "
(6) Proposal_id: "BAR_TIDA"
Raster Positions; Epoch (J2000)
(1,1)
RA: 12h35m51.8s
Dec: +27d59m42s
(2,1)
RA: 12h35m54.0s
Dec: +27d58m50s
(3,1)
RA: 12h35m56.3s
Dec: +27d57m58s
(4,1)
RA: 12h35m58.5s
Dec: +27d57m06s
(5,1)
RA: 12h36m00.8s
Dec: +27d56m14s
(6,1)
RA: 12h36m03.1s
Dec: +27d55m22s
75" LWS Pointing Overlays on DSS and Link to 1x1 degree IRAS Images
This observation has been reduced by the following steps:
- Estimate and remove dark current using LWS Interactive Analysis (LIA).
- Derive the Absolute Responsivity Correction (ARC) factors using LIA. The ARCs are derived from internal calibration flashes and scale the detector responsivities to the values measured during the LWS calibration.
- Remove outlying points by hand using ISAP. These points are typically caused by cosmic ray hits.
- Average the data across scans and scan directions using a 3-sigma "special clip" algorithm designed for LWS data found in ISAP.
- Write out to FITS and ASCII files.
Calibration Notes:
- The continuum flux may not be well determined, especially for weak sources. See the LWS Handbook and calibration notes for more information.
- For extended sources, NO EXTENDED SOURCE CORRECTION has been applied. See the LWS Handbook and calibration notes for more information.
Detectors Scanned during Line Observations:
Line: 0 Active Detector: 8
Reduced Spectra and Data:
Reduced data FITS file (Shift-click)
Reduced data ASCII file
