There is desire in the GRB subgroup to keep GRB events in GraceDB (e.g. https://gracedb.ligo.org/events/E298046/view/ and others with the "GRB" search tag) up-to-date as their electromagnetic parameters evolve in the hours, days and weeks that follow an event. There are currently three GRB parameters (T90, redshift, and designation) that are modifiable by GraceDB end-users, through a series of forms present on the event page. Currently these fields are only modifiable by human beings through the web interface. We would like to be able to update these fields (and others) in an automated fashion through the python API. To this end, the GRB subgroup would like to request the following additions to GraceDB's features:

• The list of directly modifiable attributes be expanded to include location information, i.e. RA, Dec, Err in addition to the already-modifiable T90, redshift and designation
• The creation and distribution of a resource that would allow these attributes to be modified through the python API

Once such changes are made, GraceDB GRB entries will be continuously updated so that they are consistent with the parameter lists in-use by the GRB subgroup for LVC GRB-GW searches. These lists are curated using the Vetting Automation and Literature Informed Database (VALID) and are maintained by Rob Coyne, who will be the primary point of contact for these "sync" features. More information can be found:

• https://wiki.ligo.org/Bursts/VALID
• https://git.ligo.org/robert.coyne/VALID

Please let me know if there's any additional information needed.