Simultaneous Nadir Overpasses (SNOs) between GOES-16 and METOP-B
TLE Epoch: 2017 12 21.  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)
 12/22/2017   02:43:32   (   0.00, -75.18) (  -0.77, -78.56)  386.20                80
 12/23/2017   02:25:34   (   0.00, -75.17) (   0.39, -73.58)  182.50                80
 12/24/2017   14:44:25   (  -0.00, -75.17) (   0.64, -78.14)  337.40                80
 12/25/2017   14:21:06   (  -0.00, -75.17) (  -0.46, -73.14)  231.32                80
 12/27/2017   02:40:06   (   0.00, -75.16) (  -0.60, -77.73)  293.24                80
 12/28/2017   02:22:08   (   0.00, -75.16) (   0.56, -72.75)  276.05                80
 12/29/2017   14:40:59   (  -0.00, -75.17) (   0.46, -77.30)  242.91                80
 12/30/2017   14:17:39   (  -0.00, -75.17) (  -0.64, -72.31)  326.14                80
 01/01/2018   02:36:40   (   0.00, -75.17) (  -0.41, -76.90)  198.29                80
 01/02/2018   02:18:41   (  -0.00, -75.17) (   0.75, -71.92)  371.36                80
 01/03/2018   14:37:33   (   0.01, -75.18) (   0.28, -76.47)  146.69                80
 01/04/2018   14:14:13   (   0.01, -75.19) (  -0.82, -71.48)  423.04                80