Timing accuracy and synchronization information

[jpmorten-asn]

For the data timing and acquisistion time information, it could be useful to know what accuracy can be expected. This could be achieved by introducing "Acquisition metadata" fields specifying timing accuracy and how time synchronization is achieved, for example GPS, PTP, or NTP:

[javiquinte]

We could include the timing accuracy if needed, but only as optional. Preferably we will consider it for the next release, as we need to check with the other manufacturers.
Could you provide some more information to compare later with the other manufacturers?