Added to DIAObject Table in https://github.com/lsst/LSE-163/blob/tickets/DM-29731/dpdd.tex
nearbyExtObj & unit64[3] & ~ & Three extended Objects with lowest separations in Data Release database\footnote{Separations should be calculated with respect to the transient location using the second moments of each Object's luminosity profile, as described in DMTN-151.}.
nearbyExtObjSep & float[3] & ~ & Separations of nearbyExtObj.
nearbyLowzGal & str[1] & ~ & External catalog name of the nearest low-redshift galaxy\footnote{External catalog will be, e.g., the NGC/IC, unless the community provides one that they deem to be more scientifically useful, as described in DMTN-151.}.
nearbyLowzGalSep & float[1] & ~ & Separation of nearbyLowzGal\footnote{Separations will be radial offset in arcseconds unless a community-provided catalog includes galaxy characteristics that would enable an alternative, as described in DMTN-151.}.
Made changes to https://github.com/lsst/LSE-163/blob/tickets/DM-29731/dpdd.tex