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J/ApJS/216/4
  SDSS-RM project: technical overview (Shen+, 2015)
spectrum
Post annotation
img(gal)
1.J/ApJS/216/4/table1(c)The tiled sample (1000 rows)
2.J/ApJS/216/4/table2Log of BOSS RM observations (32 rows)
3.J/ApJS/216/4/spList of spectra for the 32 epochs by object (32000 rows)
4.J/ApJS/216/4/table3Mask of sky pixels (589 rows)

 
Query by Constraints constraints help applied on Columns (Output Order: + - )
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Column  Constraint Explain   (UCD)
  (1,3,4)recno  Record number assigned by the VizieR team. Should Not be used for identification. (meta.record)
  (1+3)Seq   [0/999] Index of objects in this catalog (RMID) (meta.id)
  (1)RAJ2000 deg (i) Right ascension in decimal degrees (J2000) (Note 1)   (pos.eq.ra;meta.main)
  (1)DEJ2000 deg (i) Declination in decimal degrees (J2000) (Note 1)   (pos.eq.dec;meta.main)
  (1)z  (n) [0.1/4.4] Redshift (Note 2)   (src.redshift)
  (1)Type (char) Source type (Note 3)   (meta.code.class)
  (1)umag mag (n) [16.8/26] u-band PSF magnitude (asinh) in SDSS filter; undereddened (phot.mag;em.opt.U)
  (1)gmag mag (n) [16.2/23.7] g-band PSF magnitude (asinh) in SDSS filter; undereddened (phot.mag;em.opt.B)
  (1)rmag mag (n) [16/22.8] r-band PSF magnitude (asinh) in SDSS filter; undereddened (phot.mag;em.opt.R)
  (1)imag mag (n) [15.8/21.7] i-band PSF magnitude (asinh) in SDSS filter; undereddened (phot.mag;em.opt.I)
  (1)zmag mag (n) [15.8/22.9] z-band PSF magnitude (asinh) in SDSS filter; undereddened (phot.mag;em.opt.I)

ALL cols
    
(n) indicates a possible blank or NULL column(i)indexed column
  (1)OT   [0/6] Object type (0=unknown, 3=extended source or 6=point source) (meta.code.class)
  (1)Sample (char) Sample ID (Note 4)   (meta.id;src.sample)
  (1)CFHTLS  (n)Cross-match within 1" with the CFHTLS wide survey (II/317) (meta.ref.url)
  (1)SCat  (n)Cross-match within 1" with the SDSS catalogs (V/139 and Richards et al. 2009, J/ApJS/180/67) (meta.ref.url)
  (1)Nsp  (n)Display the spectra for this object (meta.number)
  (1)Sloan (char) Display the SDSS data for the nearest object (meta.ref.url)
  (2)Date (char) UT months of observation (in year 2014) (time.epoch)
  (2)Epoch  (i) [1/32] Epoch number (Note 1)   (meta.id)
  (2)f_Epoch (char) [ab] low quality spectra (Note 2)   (meta.code)
  (2)MJDs d [56659/56837] Start Modified Julian Date (time.epoch)
  (2)MJDe d [56660/56837] End Modified Julian Date (time.epoch)
  (2)<MJD> d Mean Modified Julian Date (time.epoch)
  (2)File (char) Plate-MJDe file identifier (meta.id;meta.file)

ALL cols
    
(n) indicates a possible blank or NULL column(i)indexed column
  (2+3)S/N   [0.5/34.2] Plate S/N (stat.snr)
  (2)N   [2/11] Number of coadded 15 minute sub-exposures in each epoch (meta.number)
  (2)Seeing arcsec [1.3/3] Median seeing during the observation estimated from the guide camera images (instr.obsty.seeing;stat.median)
  (3)Plate  SDSS plate (meta.note)
  (3)Fiber  SDSS fiber (meta.note)
  (3)MJD  SDSS Modified Julian Date (time.epoch)
  (3)Sp (char) Interactive spectrum from SDSS (meta.ref.url)
  (4)lambda 0.1nm [5458.8/10296.8] Wavelength in angstroms (Note 1)   (em.wl)
  (4)loglambda [0.1nm] [3.7371/4.0127] Logarithmic wavelength (Note 1)   (em.wl)

ALL cols
    
(n) indicates a possible blank or NULL column(i)indexed column
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