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Title: Multi-color optical monitoring of ten blazars from 2005 to 2011 
Authors: Meng N., Zhang X., Wu J., Ma J., Zhou X.
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Description of contents: This tar.gz archive contains the full time-series
    of the c, e, i, m, and/or o magnitudes for each of 10 blazars. The 34 
    light curves included in this tar.gz archive include:
    
    Short       blazar        Nf  Passbands
    1959        1ES 1959+650  3   c, i, o
    3c454       3C 454.3      3   c, i, o
    3c66a       3C 66A        3   c, i, o
    bllacertae  BL Lacertae   5   c, e, i, m, o
    mrk421      Mrk 421       3   c, m, o
    oi090       OI 090.4      3   c, i, o
    on231       ON 231        3   c, i, o
    ot546       OT 546        5   c, e, i, m, o
    pg1553      PG 1553+113   3   c, i, o
    pks0735     PKS 0735+178  3   c, i, o

    The files associated with this tar.gz archive filenames of the pattern:
    
    <Short>_lc_<Passband>.[txt, mrt] 

System requirements: There are two types of files for each light curve
    asscoiated with this tar.gz archive. The files with the extension ".mrt"
    are formatted according to the machine readable format used by the AAS
    Journals and CDS/VizieR. Specific information on the structure of MRT
    files can be found at:

        AAS: http://journals.aas.org/authors/MRT/
        CDS: http://cds.u-strasbg.fr/doc/catstd.htx

    These files can be read in python using the astropy package:

        from astropy.table import Table
        data = Table.read("3c66a_lc_c.mrt", format="ascii.cds")
    
    The files ending in ".txt" are space delimited text files with the same
    metadata described in the MRT files and in the descriptive version of
    Table 3 in the manuscript listed above.

Additional comments: 

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