After the DM-SST discussion on Mon Dec 2, several changes were made to DMTN-049 (most recent PDF here):
(1) The timeline dates were fixed so that the community feedback items end in Q2 2020 (minimum attributes) and Q4 2020 (evaluation of options), and the implementation process ends in Q4 2022 (i.e., the end of construction and start of operations).
(2) All "estimated levels of effort" were removed, as they were only confusing.
(3) As requested, more detailed description of the core steps of the implementation process are now laid out in Section 5. As discussed, since this is an SST document, it does not contain technical details, and focuses instead on the roles of the commissioning data and community contributions to implementation.
(4) The long and detailed section which contained the results from several photo-z algorithms that I ran on LSST-like data has been removed – it is unnecessary now that Schmidt et al. will soon be published (and other examples of photo-z estimator comparison papers are given in Section 4.1 anyway).
The next things to happen should be:
(1) DM-SST should review the new text of DMTN-049 in full. At minimum Leanne Guy and Jim Bosch I think should read it, and if Keith Bechtol could review the commissioning-related statements, that would be great
(2) If DM-SST agrees it is necessary, MLG can write an LCR to update DMS-REQ-0046 as described in the above comment from 06/Nov/19. But it's a very minor change, perhaps not worth it.
(3) We close this ticket and open two new ones to solicit feedback regarding the minimum attributes (due June 30 2020) and the evaluation of potential algorithms (due Dec 31 2020). I start by sending DMTN-049 to the participants of the PCW's session on photo-z, and then to the DESC PZ working group, and then expand more broadly to solicit input from the science collaborations.