Draft LSST Change Request (LCR) for the DPDD (LSE-163)
In the DPDD, add these four rows to DIAObject Table (Table 3) along with the three footnotes.
- potentialHost, unit64, "Three extended Objects with lowest separations in Data Release database^FN1^."
- potentialHostSeparation, float, "Separations of potentialHost."
- potentialLowzHost, str, “External catalog name of the nearest low-z potential host^FN2^.”
- potentialLowzHostSeparation, float, “Separation of potentialLowzHost^FN3^.”
^FN1^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.
^FN2^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.
^FN3^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.