Open Access
Table 1.
Delay of GRANDMA notice delivery compared to the trigger time.
| Name | Trigger time | BAT pos. | TCA receiver |
|---|---|---|---|
| (UTC) | delay (s) | delay (s) | |
| GRB220319A | 2022-03-19T17:40:33 | 19 | < 1 |
| GRB220325A | 2022-03-25T17:16:23 | 13 | 9 |
| GRB220403B | 2022-04-03T20:42:39 | 18 | 1 |
| GRB220404A | 2022-04-04T11:54:30 | 53 | < 1 |
| GRB220408A | 2022-04-08T05:46:04 | 12 | < 1 |
| GRB220412A | 2022-04-12T06:36:50 | 54 | < 1 |
| GRB220412B | 2022-04-12T17:06:48 | 13 | < 1 |
| GRB220427A | 2022-04-27T21:00:34 | 25 | < 1 |
| GRB220430A | 2022-04-30T13:53:15 | 275 | 2 |
| GRB220501A | 2022-05-01T-19:51:50 | 21 | 70 |
Notes. The delay is calculated from the telescope receiver and takes into account the delay of transmission from Swift in sending the position of the GRB, the delay of treatment by the GRANDMA infrastructure, and the delay of transmission.
Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.
Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.
Initial download of the metrics may take a while.