Simultaneous Nadir Overpasses (SNOs) between GOES-15 and METOP-B
TLE Epoch: 2018 1 2.  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)
 01/04/2018   06:40:29   (   0.05,-135.11) (  -0.45,-137.18)  237.47                80
 01/05/2018   06:17:11   (   0.05,-135.08) (   0.72,-132.20)  328.21                80
 01/06/2018   18:36:01   (  -0.04,-134.99) (   0.37,-136.75)  201.12                80
 01/07/2018   18:18:01   (  -0.04,-134.96) (  -0.74,-131.75)  364.77                80
 01/09/2018   06:37:02   (   0.03,-134.96) (  -0.30,-136.35)  158.84                80
 01/10/2018   06:13:42   (   0.04,-134.92) (   0.81,-131.35)  406.46                80
 01/11/2018   18:32:34   (  -0.03,-134.82) (   0.23,-135.91)  124.05                80
 01/12/2018   18:14:34   (  -0.04,-134.79) (  -0.88,-130.91)  441.21                80
 01/14/2018   06:33:34   (   0.03,-134.78) (  -0.15,-135.51)   83.10                80
 01/15/2018   06:10:15   (   0.03,-134.74) (   0.97,-130.51)  481.51                80
 01/16/2018   18:29:06   (  -0.03,-134.63) (   0.07,-135.07)   50.46                80