8. Get the Observation Plan (Only for Telescope Teams)

8. Get the Observation Plan (Only for Telescope Teams)#

8.1 Retrieve Your Data Promptly After a GW Alert#

  1. Notification:

    • You received a notification of a GW alert on Slack (#gwalerts).

GW Alert Message

  1. Access the Data:

    • Click on the link in the notification to go to OwnCloud. You will be directed to the page of the source (e.g., S230511cp).

  2. Navigate to the Relevant Folder:

    • Go to the folder GWEMOPT:

      • If the “Update” folder exists, go there.

      • Otherwise, go to “Preliminary”.

    • Then, navigate to Galaxy targeting/Tiling (use “Tiling” for bigger aperture telescopes).

Owncloud Folder

  1. Find Your Telescope:

    • Locate your telescope in the Galaxy targeting folder (or in Tiling if not in Galaxy targeting). OwnCloud Folder 2

    • Example: For ASTEP, find the file Name_of_your_telescope.txt. OwnCloud Folder 3

      • The file contains tiles to observe, with the first tile being the most likely to find the source.

      • Be cautious as column names and numbers might not be well aligned.

      • The file includes the tile ID, RA and DEC coordinates, probability, and times in UTC.

8.2 Retrieve Data for Follow-Up#

  1. Follow-Up Advocate Query:

    • When the follow-up advocate flags a source as GO GRANDMA, you will receive an email indicating that you need to follow up.

Email Alert

8.3 Notify the Follow-Up Advocate#

  1. Inform GRANDMA:

    • Once you have the information and are ready to observe, notify the rest of GRANDMA:

      • Post in #observations on Slack.

      • Contact the individual on shift or the weekly coordinator. This information will be evident in #Shifters.

8.4 Reporting Observations#

  1. On Slack (#observations):

    • Write a message to inform about your observations:

      I received the plan and I will start observing with {Name_of_your_telescope_id} id {the one you are observing} tile id {tile_id} RA {RA} DEC {DEC} probability {probability} on preliminary/update date {date}

    • Example message if observing the first tile in ASTEP.txt:

      I received the plan and I will start observing with ASTEP id 1 tile id 55 ra 221.338200 dec 23.809400 probability 0.003400 on preliminary date 2023-05-22T16-56-43

  2. Update ICARE:

    • Search for the event in ICARE:

Skyportal Alert

 - Go to `GW/GRB/Neutrino` and use the source date to search for it on the site.
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