How many seconds in monthly rate are equivalent to ±20ppm accuracy of time?
How many seconds in monthly rate are equivalent to ±20ppm accuracy of time?
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If the accuracy of time is ±20ppm, then the monthly rate is 53.6 seconds.
The calculation formula is as follows:
- ±20 x 10-6 x 60 sec. x 60 min. x 24 hrs. x 31 days = ±53.6 sec./month
Supposed that the monthly rate should be within 1 minute, the accuracy of time must be equal or less than ±23.14ppm.
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