Dear list,
I encountered some cases where the actual time interval between two neighbouring measurements being much larger than the scheduled value.
Have you witnessed similar cases? I appreciate explanations on underlying reasons.
Here goes an example:
from ripe.atlas.cousteau import AtlasResultsRequest
filters = dict(msm_id=1010, probe_ids=[16981], start=1470055258, stop=1470056217)
is_success, results = AtlasResultsRequest(**filters).create()
if is_success:
for mes in results:
print mes.get('timestamp', -1)
The above code requests some built-in ping measurements (240s interval) made by probe 16981 and prints their timestamps. See below for the execution result:
1470055259
1470055499
1470055978
1470056216
Four measurements are retrieved within the given time range. I noticed that time interval between the 2nd and the 3rd measurement is 479s much larger than the planned value 240s.
How come?
Many thanks for your attention.
Best regards,
wenqin