Haggai Landa

Results 2 issues of Haggai Landa

![image](https://user-images.githubusercontent.com/55192441/67773495-7ea61d00-fa64-11e9-9b4d-52dadf5fcf77.png)

`index(t)` is used twice in `plot_routines.py` and should be replaced by `isclose` with a relative precision of 0.01 of the difference of two consecutive observable time entries.

good first issue