Requirment: Simplify and improve record start time

[krischer]

Simplification of MiniSEED2: Simplify and improve record start time.

[crotwell]

Is this different from #6 ?

[krischer]

I guess this requirement refers to the fact that the actual start time in miniSEED2 can be modified in a number of way by other fields in the fixed header or various blockettes so in that sense it is independent of the way the numeric value of the absolute times is represented.

[chad-earthscope]

I think this is also partially a remnant of the "UNIX/Posix based epoch" time that was in the original strawman. That concept resulted in strong opposition by D. Neuhauser (who proposed the extended time structure) and J. Steim.

[crotwell]

So the simplify step is to make it no longer modified (ie time correction always applied), and the improve is to add nanos?

[krischer]

That is how I would interpret it but I don't know exactly where this requirement originates from.

[krischer]

Summary

(Please let me know if I missed a point or misunderstood something)

Please vote on:

1. Should the start time in each record always be the actual start time? E.g. any kind of time correction has already been applied. (Yes / No)

[crotwell]

yes

[chad-earthscope]

1. Yes. No interpretation or checking of other fields should be needed to understand the recorded start time.

[kaestli]

yes

[ozym]

1. Yes

[ketchum-usgs]

yes

[claudiodsf]

Yes

[ihenson-bsl]

1. yes

[ValleeMartin]

1. Yes

[JoseAntonioJara]

1. Yes