Below is a description of the fields of the table that can be accessed through the interfaces.
Heliocentric radial velocity (CZ) in km/s with its uncertainty and quality flag in parentheses (in html displays).
The quality flag has the following meaning:
|1||uncertain measurement, its weight is decreased by a factor 2 when computing the average value|
|3||preliminary measurement, probably superseeded in a more recent publication, it is ignored unless no other measurement is available|
|4||compilation, it is ignored unless no other measurement is available|
Method of Measurement
|3||optical measurement from a particular region (knot. region HII)|
|6||average of measurements of members|
|7||RVSAO (cross correlation)|
|8||EMSAO (emission lines)|
Resolution in km/s when the velocity comes from radio measurement
Line Code: code of the spectral line used for making a measurement
||emission line (like 21-cm line
or H_alpha line)