Simultaneous Nadir Overpasses (SNOs) between GOES-16 and NPP
TLE Epoch: 2018 6 7.  Predictions up to the next  14.0 days:

     Date     Time(GOES-16)   GOES-16 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 06/08/2018   06:23:21   (   0.01, -75.19) (  -0.08, -74.91)   32.65                80
 06/10/2018   18:26:31   (  -0.01, -75.20) (  -0.13, -75.67)   53.96                80
 06/11/2018   18:10:27   (  -0.01, -75.21) (   0.90, -71.15)  463.02                80
 06/13/2018   06:32:14   (   0.01, -75.21) (   0.30, -76.41)  137.15                80
 06/14/2018   06:10:50   (   0.01, -75.21) (  -0.73, -71.88)  379.77                80
 06/15/2018   18:32:46   (  -0.01, -75.22) (  -0.44, -77.18)  223.35                80
 06/16/2018   18:16:42   (  -0.01, -75.23) (   0.59, -72.65)  293.89                80
 06/18/2018   06:38:29   (   0.00, -75.24) (   0.61, -77.92)  305.33                80
 06/19/2018   06:17:05   (   0.00, -75.25) (  -0.42, -73.39)  212.28                80
 06/20/2018   18:39:01   (   0.00, -75.27) (  -0.75, -78.69)  389.60                80