Simultaneous Nadir Overpasses (SNOs) between GOES-16 and METOP-A
TLE Epoch: 2017 12 20.  Predictions up to the next  14.0 days:

     Date     Time(GOES-16)   GOES-16 Lat/Lon  METOP-A Lat/Lon    Distance(km)  Time Diff(sec)
 12/21/2017   02:10:51   (  -0.01, -75.19) (   0.89, -71.02)  474.32                80
 12/22/2017   14:29:41   (   0.02, -75.18) (   0.11, -75.59)   46.04                80
 12/25/2017   02:25:19   (  -0.03, -75.18) (  -0.03, -75.18)    0.28                80
 12/27/2017   14:23:29   (   0.03, -75.19) (  -0.08, -74.76)   50.17                80
 12/29/2017   02:42:27   (  -0.03, -75.20) (  -0.96, -79.35)  473.26                80
 12/30/2017   02:24:26   (  -0.03, -75.20) (   0.16, -74.36)   96.59                80
 12/31/2017   14:43:17   (   0.03, -75.21) (   0.84, -78.92)  422.08                80
 01/01/2018   14:19:56   (   0.03, -75.22) (  -0.27, -73.93)  147.64                80
 01/03/2018   02:38:55   (  -0.03, -75.22) (  -0.75, -78.52)  375.44                80