Simultaneous Nadir Overpasses (SNOs) between GOES-15 and METOP-B
TLE Epoch: 2018 12 30.  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) (   0.18,-129.78)  145.27                80
 01/01/2019   17:48:23   (  -0.10,-128.49) (  -0.94,-124.79)  422.45                80
 01/03/2019   06:07:24   (   0.09,-128.50) (  -0.13,-129.38)  100.75                80
 01/04/2019   05:44:05   (   0.10,-128.48) (   0.99,-124.38)  465.84                80
 01/05/2019   18:02:58   (  -0.08,-128.42) (   0.05,-128.94)   59.57                80
 01/08/2019   06:04:02   (   0.07,-128.41) (   0.07,-128.55)   15.70                80
 01/10/2019   18:02:14   (  -0.06,-128.31) (  -0.09,-128.10)   24.04                80
 01/12/2019   06:21:17   (   0.05,-128.32) (  -0.91,-132.70)  498.02                80
 01/13/2019   05:57:58   (   0.06,-128.30) (   0.21,-127.71)   67.89                80