| Column | Description |
|---|
| pgc | PGC number |
| IntID | Internal group ID; running tabulation of Nearby Galaxy Catalog groups |
| GrpID | Group/cloud ID following Nearby Galaxies Catalog |
| objname | Common name |
| l | Galactic longitude |
| b | Galactic latitude |
| T | Morphological type code |
| Vhel | Heliocentric velocity |
| V_GSR | Galactocentric velocity, defined in RC3 |
| Mod_NAM | Distance modulus assumed; given by Numerical Action model |
| Mod_Q | Distance modulus measured for specific galaxy by a quality method |
| E_BV | Differential Galactic reddening E(B-V); Schlegel, Finkbinder, Davis |
| AgB | Galactic absorption in B band |
| BAratioB | ratio minor to major axis from CCD image, B prefered |
| NsrcBA | No. sources contributing to measure of axial ratio |
| Bt | Total B magnitude, Pierce/Tully source, uncorrected for obscuration |
| magRt | Total R magnitude, average of sources, uncorrected for obscuration |
| NsrcRt | No. sources of R photometry |
| magIt | Total I magnitude, average of sources, uncorrected for obscuration |
| NsrcIt | No. sources of I photometry |
| magH | Aperture H magnitude H_{-0.5}, average of sources, uncorrected for obscuration |
| NsrcH | No. sources of H photometry |
| Vh21 | Heliocentric velocity from HI observation |
| W20 | HI profile linewidth at 20% of peak intensity |
| MQC | m=morphology quality code (1-3 good) |
| HIQC | l=HI profile quality code (1-3 good) |
| Mod_HI | Distance modulus from HI luminosity-linewidth correlation |
| e_Mod_HI | RMS variance in measured Mod_HI |
| Swgth | Summed weight: R=I: wt=1; B=H: wt=0.5 |
| Mod_fgc | Distance modulus: Karachentsev Flat Galaxy: 2MASS K-linewidth correlation |
| Btc | B mag corrected for reddening |
| Lc | Reduced luminosity = logL-dmin/2.5 corrected by selection function for lost luminosity |
| elg | Galactic longitude (global group parameter) |
| bg | Galactic latitude (global group parameter) |
| redlcg | Group reduced luminosity |
| ivhg | Group heliocentric velocity |
| ivgg | Group Galactocentric velocity: GSR frame in RC3 |
| ivlsg | Group velocity in Local Sheet reference frame (2008, ApJ,676, 184) |
| ivcmbg | Group velocity in Cosmic Microwave Background reference frame |
| dmg | Group distance modulus: average of all measures |
| sigwtg | Error in group distance modulus |
| ntfg | No. luminosity-linewidth estimates for group |
| dmtfg | Group luminosity-linewidth modulus |
| etfg | Error in group luminosity-linewidth modulus |
| wtfg | Weight assigned to group luminosity-linewidth distance estimate |
| nfg | No. distance estimates from Karachentsev 2MASS/Flat Galaxies sample |
| dmfg | Group modulus from Karachentsev 2MASS/Flat Galaxies luminosity-linewidth sample |
| efg | Error in Karachensev 2MASS/Flat Galaxies modulus |
| nqg | No. other good estimates of group modulus |
| dmqg | Group modulus from other good measures |
| eqg | Error in group modulus from other good measures |