Wow, reasonable analysis.

Regarding the 60s timestamps, when I wrote about time steps, I mean that I notice a drift in longer periods (days).

1520900660.065, 2.942138E002, 3.004225E000
1520900720.702, 2.941372E002, 2.988049E000
[… 5 days]
1521395325.604, 2.887384E002, 2.444784E000
1521395385.603, 2.887443E002, 2.444766E000