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phase: 3

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J/A+AS/132/83

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	J/A+AS/132/83	38		BVRI photometry of 7 BL Lac objects (Bai+ 1998) ReadMe+ftp Similar Catalogs Objects Post annotation
1.	J/A+AS/132/83/table2		Photometric data of seven BL Lac objects (341 rows)

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recno

Record number within the original table (starting from 1) (meta.record) (RECORD)

Date

⁽ⁿ⁾Observation date (time.epoch) (TIME_DATE)

JD

d

Julian Date (time.epoch) (TIME_DATE)

mag

mag

Magnitude (phot.mag;em.opt.V) (PHOT_MAG_OPTICAL)

e_mag

mag

One sigma uncertainty on mag (stat.error) (ERROR)

Band

(char)

[BVRI] Filter used (meta.code;instr.filter) (INST_FILTER_CODE)

Object

(char)

Name of the object observed (meta.id;meta.main) (ID_MAIN)

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⁽ⁿ⁾ indicates a possible blank or NULL column

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