| NTP Server | Grade
(Mode) |
| 128.2.1.20 | A- |
| AC-NTP0.NET.CMU.EDU |
30-day Grade History
| A |
B+ |
B+ |
A- |
B+ |
A |
A- |
B+ |
A |
A- |
B+ |
B+ |
B+ |
B+ |
B+ |
A |
A- |
A- |
A |
A- |
B+ |
A- |
B+ |
A- |
A |
A |
A- |
A |
A- |
A- |
30-day Clock Offset History
+3ms
-3ms
30-day Clock Jitter History
8ms
30-day Round-trip Delay History
33ms
30-day Round-trip Delay Standard Deviation History
6ms
30-day Availability History
100%