Simultaneous Nadir Overpasses (SNOs) between GOES-15 and METOP-B
TLE Epoch: 2019 1 6.  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)
 01/08/2019   06:04:01   (   0.07,-128.39) (   0.03,-128.54)   17.23                80
 01/10/2019   18:02:15   (  -0.06,-128.28) (  -0.12,-128.10)   21.09                80
 01/13/2019   05:57:58   (   0.05,-128.26) (   0.18,-127.70)   64.28                80
 01/14/2019   18:16:50   (  -0.04,-128.17) (   0.86,-132.26)  465.53                80
 01/15/2019   17:58:51   (  -0.05,-128.14) (  -0.26,-127.26)  100.35                80
 01/17/2019   06:17:53   (   0.04,-128.15) (  -0.79,-131.85)  422.53                80
 01/18/2019   05:54:34   (   0.05,-128.11) (   0.34,-126.86)  142.10                80
 01/19/2019   18:13:26   (  -0.04,-127.99) (   0.70,-131.42)  389.99                80
 01/20/2019   17:55:27   (  -0.04,-127.95) (  -0.36,-126.41)  174.97                80