Determine VOTAN role in ingest of GCN Classic notices

[jracusin]

Description

Study how VOTANs are used in GCN Classic and determine if decommissioning will break functionality.

Acceptance criteria

• determine if VOTAN decommissioning will break notice ingest for LVC or other missions
• if so, retire GCN Classic notice types or ingest VOEvent via Kafka

[jracusin]

From Teresa: "LVC and AMON ingest VOEvent data via the lvc_receiver and amon_reciever programs. No missions ingest data directly into the VOTANS. (LVC voevent data is passed through GCN but is not processed at all. AMON voevent data is unpacked, placed in the 160 byte socket buffer, sent to gromain and unpacked."

[jracusin]

We reached out to LVK and asked if they were okay with us no longer distributing VOEvent over VTP after O4, and they are. Need to reach out to AMON.

[jracusin]

VOEvent will still be distributed via GCN Classic over Kafka.