Incorporate RapidPE pastro into alert system
Currently pastro results from RapidPE won't be included in the 2nd preliminary alert (5 min after detection) since we always copy the the pastro from the preferred event: https://git.ligo.org/emfollow/gwcelery/-/blob/fc376961a61266a70fd0082d08a94b1e71059af2/gwcelery/tasks/orchestrator.py#L803
We would need to include a check that if the preferred event at the time of sending the alert is from gstlal
, we use the pastro from RapidPE in the alert. There may be some complication if the preferred event changes from one gstlal event to another with different masses so either a different design would be needed or these details worked out.