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Co-Added Dataset ocb6m2040



Dataset MODE−λcen Aper Range Texp MJD QF Vshft XC / Fscl
ocb6m2040_1 E230H-2912 31×0.05NA 2772−3046 1337 56909.057 87 +0.00 2799.01 [0.20]
ocb6m2040_2 E230H-2912 31×0.05NA 2772−3046 1337 56909.074 82 −0.18 1.119

Notes. Aper is abbreviated aperture code (31×0.05NA= 31″×0.05″NDA). Spectral Range is in Å. Texp is integration time (in s). MJD is U.T. start time of each sub-exposure. QF is quality factor (average S/N per resel) . Vshft is wavelength correction (in km/s) derived by cross-correlation relative to first spectrum listed. Datasets normally are time-ordered, unless later sub-exposure of the sequence had significantly higher throughput, in which case it would be in first position. Cross-correlation template parameters (XC: λ and [Δλ], in Å), if any, are provided for first spectrum, but refer to entire group. Null template ("∼") indicates simple co-addition (no shifts). Values in that column for subsequent datasets are flux scale factors (Fscl) relative to leading spectrum (for which Fscl= 1). Wavelengths and fluxes for sub-exposure "_n" can be found in FITS extension n+1 of co-added dataset ocb6m2040.

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