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1| Overview
SpT = Telluric:
T0308_HD_163745 (B5II(tell.), Z=0.00)
Other SpT:
O B A F G K M Unknown ||
UVES NGSL Project: T0308_HD_163745
1 Overview   2 Quality plots   3 Detailed spectra   [download tar]
Top: All flux-calibrated spectra
(green: STIS spectrum for comparison, if available)


Bottom: approximate S/N (= signal/errors).

All data rebinned to 5A.





SPECTRA RANGE [A] SETUP OB ID OB GRADE FILE HDR N EXPT TEXP SLITW SEEING AIRM RV
helio
RV
shift
comm.
  0   1   2   3 3300-3850 BLU_346 140834
A
r.UVES.2003-07-31T03:33:33.052_0017_rvc.fits hdr 5 100 500 1. n/a 1.0995 -17.31  
  0   1   2   3   4 3830-4950 BLU_437 140833
A
r.UVES.2003-07-31T03:11:28.069_0017_rvc.fits hdr 5 100 500 1. n/a 1.0745 -17.27
  0   1   2   3 4900-5750 REDL_580 140834
A
r.UVES.2003-07-31T03:30:57.167_0017_rvc.fits hdr 5 50 250 0.92 n/a 1.0955 -17.30
  0   1   2   3 5810-6770 REDU_580 140834
A
r.UVES.2003-07-31T03:30:57.167_0036_rvc.fits hdr 5 50 250 0.92 n/a 1.0955 -17.30
  0   1   2   3   4 6770-8500 REDL_860 140833
A
r.UVES.2003-07-31T03:12:05.893_0017_rvc.fits hdr 5 100 500 0.88 n/a 1.075 -17.27
  0   1   2   3   4 8650-10150 REDU_860 140833
A
r.UVES.2003-07-31T03:12:05.893_0036_rvc.fits hdr 5 100 500 0.88 n/a 1.075 -17.27

TARGET T0308_HD_163745 (telluric comparison), DATE 2003-07-30

Find here an overview of the spectral plots. This target is a telluric standard star. All spectra have been taken with the same instrumental parameters as the NGSL targets.

SPECTRA: This column links to full views with 30 or 50 A panels of the co-added spectra (available also under "2| Detailed spectra").

RANGE: wavelength range of the spectra in A.

SETUP: CCD and central wavelength [in nm]. BLU stands for the blue CCD, REDL is the lower RED, REDU the upper red CCD.

OB ID: Observing Block (OB) number. Each target has normally been observed in two OBs, covering the whole wavelength range.

FILE: name of the product file plotted here ('_rvc' indicating that pipeline products have been fluxed, averaged, and RV correct ed).

HDR: header of first parent raw file.

N: number of single exposures co-added for the final spectrum.

EXPT: exposure time in seconds for single exposure.

TEXP: exposure time in seconds for co-added product (as displayed here).

SLITW: slit width in arcsecs.

SEEING: Averaged DIMM seeing value from begin and end of first exposure. n/a: no data available. An asterisk marks values applicable for begin or end of exposure only.

AIRM: Averaged airmass value from begin and end of first exposure.

RV_helio: Heliocentric radial velocity correction, in km/s. NOTE: The telluric spectra are *not* RV corrected.

RV_shift: Radial velocity correction in km/s. NOTE: The telluric spectra are *not* RV corrected.

comm.: any comment.

The spectral plots above 5810 A have telluric lines marked by blue vertical bars. These lines have been identified from the reference spectra. The line catalogue is limited in sensitivity by the S/N of these data. The telluric line list plotted here is also the reference for all other spectral plots.

Catalog of telluric lines: 580U | 860L | 860U

The panel plots have flux in physical units, 1e-13 erg/s/cm**2/A. Data are corrected for atmospheric extinction. The abscissa is in Angstroem.

The flux scale has been fine-tuned to minimize steps between setups. These are likely to be due to slit losses. Corrections have been anything between negligible and considerable, depending on the seeing during the exposures. There have been cases with seeing much better than the slit width, but also cases with a considerable fraction of flux lost due to bad seeing. Check columns 'SLITW' and 'SEEING'.

For details about the flux calibration with the UVES pipeline check out here.

The overview plot has
- the full spectrum (rebinned to 5 A) on top ('overview');
- a signal/noise plot based on the ratio spectrum/errorbar (the errorbar spectrum as delivered by the pipeline) properly scaled by the number of averaged spectra.