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NB: The epoch used for the query is the original epoch of the table(s)Radius Box size

  HYPERLEDA. II. Homogenized HI data (Paturel+, 2003)
Post annotation
1.VII/238/hidat(c)Final catalog of homogenized HI data (Table 8) (16781 rows)
2.VII/238/refsReferences (Table 3) (512 rows)
3.VII/238/newobs(c)New observations (Table A1) (809 rows)
4.VII/238/notesIndividual notes (Table A3) (72 rows)

Query by Constraints constraints help applied on Columns (Output Order: + - )
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Column  Constraint Explain   (UCD)
  (ALL)recno  Record number assigned by the VizieR team. Should Not be used for identification. (meta.record)
   (1+3+4)PGC  (i) [2/3098573] PGC number from LEDA (;meta.main)
  (1+3+4)AName (char) Alternate name from LEDA (
  (1+3)RAJ2000 "h:m:s" (i) Right ascension (J2000) (pos.eq.ra;meta.main)
  (1+3)DEJ2000 "d:m:s" (i) Declination (J2000) (pos.eq.dec;meta.main)
  (1)log(2Vm) [km/s] Mean homogenized decimal logarithm of twice the maximum rotation velocity uncorrected for inclination, log2(VMsini) (phys.veloc.escape)
  (1)e_log(2Vm) [km/s] Mean error on log2VM,sini (stat.error)
  (1)u_log(2Vm)   [0/1] Uncertainty flag (1 = uncertain) (meta.code.error)
  (1)m21 mag (n) Mean homogenized 21-cm magnitude (-2.5log(0.2366F)+15.84, F in Jy*km/s) (phot.mag;
  (1)e_m21 mag (n) mean error on m21 (stat.error)
  (1)u_m21   [0/1] Uncertainty flag (1 = uncertain) (meta.code.error)

ALL cols
(n) indicates a possible blank or NULL column(i)indexed column
  (1+3)VHI km/s (n) Mean homogenized HI heliocentric radial velocity (spect.dopplerVeloc)
  (1+3)e_VHI km/s (n) Mean error on VHI (stat.error)
  (1)u_VHI   [0/1] Uncertainty flag (1 = uncertain) (meta.code.error)
  (1)PapI (char) Data from Paper I (VII/237) (meta.ref.url)
  (1+3)LEDA (char) Data from the current data-base (meta.ref.url)
  (2)Ref  Reference code (meta.note)
  (2)N21cm  Number of measurements of 21-cm line width or log2(VMsini) (i.e. Not corrected for the inclination effect). (meta.number)
  (2+3)Note (char) [*] * Reference from rotation velocity curve. (meta.note)
  (2)BibCode (char) BibCode (meta.bib.bibcode)
  (2)Aut (char) Author's name (
  (2+4)Com (char) Comments (meta.note)
  (3)W20 km/s 21-cm line width at 20% of the maximum (spect.line.width;
  (3)e_W20 km/s (n) rms uncertainty on W20 (stat.error)

ALL cols
(n) indicates a possible blank or NULL column(i)indexed column
  (3)W50 km/s 21-cm line width at 50% of the mqximuM (spect.line.width;
  (3)e_W50 km/s (n) rms uncertainty on W50 (stat.error)
  (3)FHI HI flux (area of the 21-cm line) (phot.flux.density;em.line.HI;spect.line)
  (3)n_FHI (char) [*] indicates a Flux uncorrected for the beam-filling effect (meta.note)
  (3)e_FHI rms uncertainty on FHI (stat.error)
  (3)S/N  Signal to Noise ratio (stat.snr)
  (3)Qual (char) [ABCD] Quality of the line (Note 1)   (meta.code.qual;spect.line)
  (3)n_PGC (char) [*] indicates a note in file notes.dat (meta.note)

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