Simultaneous Nadir Overpasses (SNOs) between GOES-15 and METOP-B
TLE Epoch: 2018 12 31.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  METOP-B Lat/Lon    Distance(km)  Time Diff(sec)
 12/31/2018   18:06:21   (  -0.10,-128.50) (   0.19,-129.78)  145.33                80
 01/01/2019   17:48:22   (  -0.10,-128.49) (  -0.92,-124.78)  422.32                80
 01/03/2019   06:07:25   (   0.09,-128.50) (  -0.08,-129.39)  100.92                80
 01/04/2019   05:44:06   (   0.10,-128.47) (   1.03,-124.39)  465.63                80
 01/05/2019   18:02:57   (  -0.08,-128.42) (   0.06,-128.94)   59.98                80
 01/08/2019   06:04:01   (   0.07,-128.40) (   0.05,-128.54)   15.94                80
 01/10/2019   18:02:15   (  -0.06,-128.31) (  -0.14,-128.11)   23.52                80
 01/12/2019   06:21:16   (   0.05,-128.32) (  -0.92,-132.70)  498.73                80
 01/13/2019   05:57:58   (   0.06,-128.29) (   0.20,-127.70)   67.09                80