Simultaneous Nadir Overpasses (SNOs) between GOES-16 and METOP-B
TLE Epoch: 2017 12 28.  Predictions up to the next  14.0 days:

     Date     Time(GOES-16)   GOES-16 Lat/Lon  METOP-B Lat/Lon    Distance(km)  Time Diff(sec)
 12/29/2017   14:40:59   (   0.00, -75.18) (   0.48, -77.30)  241.82                80
 12/30/2017   14:17:39   (   0.00, -75.17) (  -0.62, -72.30)  326.10                80
 01/01/2018   02:36:40   (   0.00, -75.14) (  -0.37, -76.91)  200.65                80
 01/02/2018   02:18:41   (  -0.01, -75.14) (   0.73, -71.91)  367.87                80
 01/03/2018   14:37:32   (   0.01, -75.14) (   0.30, -76.47)  151.11                80
 01/04/2018   14:14:13   (   0.02, -75.14) (  -0.81, -71.47)  417.68                80
 01/06/2018   02:33:13   (  -0.03, -75.12) (  -0.24, -76.07)  107.79                80
 01/07/2018   02:15:14   (  -0.03, -75.12) (   0.87, -71.07)  461.64                80
 01/08/2018   14:34:05   (   0.03, -75.14) (   0.16, -75.63)   55.81                80
 01/11/2018   02:29:47   (  -0.03, -75.14) (  -0.03, -75.24)   10.75                80