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fors2_photometry: IMG: zeropoint, extinction qc1 parameters (details)

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1. General Keywords

	mjd_obs	float	average MJD-OB
	civil_date	datetime	date of observations

2. QC1 Keywords

	zeropoint	float	zeropoint
	zeropoint_err	float	error of zeropoint
	colour_term	float	colour term
	colour_term_err	float	error of colour term
	colour	varchar	colour of colour term
	extinction	float	extinction coefficient
	extinction_err	float	error on extinction coefficient
	num_ext	int	number of STD images observed on civil_date
	num_fields	int	number of photometric fields used
	num_nights	int	number of stable nights used for calculation
	date_range	int	total date range (between first and last used night)
	stable	varchar	S: photometric conditions were stable over the night; Sb: stable at begin; N: unstable; U: unknown

3. Instrument Keywords

		filter_name	varchar	filter name
		det_chip1_id	varchar	CCD ID
		det_chip_num	varchar	chip number (1: upper, 2: lower)

4. Options

time range:	from	to
aggregate functions:	sum mean 1sigma number
format:	plain ASCII	HTML

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