Simultaneous Nadir Overpasses (SNOs) between GOES-16 and METOP-B
TLE Epoch: 2017 12 18.  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)
 12/19/2017   14:47:51   (  -0.01, -75.19) (   0.85, -78.96)  429.84                80
 12/20/2017   14:24:32   (  -0.01, -75.19) (  -0.30, -73.97)  139.10                80
 12/22/2017   02:43:33   (  -0.00, -75.19) (  -0.76, -78.56)  384.50                80
 12/23/2017   02:25:33   (  -0.01, -75.20) (   0.34, -73.57)  185.26                80
 12/24/2017   14:44:24   (   0.02, -75.20) (   0.68, -78.13)  333.28                80
 12/25/2017   14:21:05   (   0.02, -75.21) (  -0.42, -73.13)  236.36                80
 12/27/2017   02:40:06   (  -0.02, -75.22) (  -0.58, -77.73)  286.72                80
 12/28/2017   02:22:07   (  -0.02, -75.22) (   0.53, -72.74)  283.41                80
 12/29/2017   14:40:58   (   0.02, -75.24) (   0.50, -77.29)  234.44                80
 12/30/2017   14:17:40   (   0.02, -75.25) (  -0.66, -72.31)  335.40                80
 01/01/2018   02:36:40   (  -0.02, -75.26) (  -0.39, -76.90)  187.66                80