Simultaneous Nadir Overpasses (SNOs) between GOES-16 and NPP
TLE Epoch: 2020 12 14.  Predictions up to the next  14.0 days:

     Date     Time(GOES-16)   GOES-16 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 12/14/2020   18:16:19   (   0.01, -75.15) (   0.58, -72.64)  286.26                80
 12/16/2020   06:38:07   (  -0.00, -75.15) (   0.64, -77.91)  314.83                80
 12/17/2020   06:16:43   (  -0.00, -75.15) (  -0.43, -73.39)  201.87                80
 12/18/2020   18:38:40   (  -0.00, -75.17) (  -0.80, -78.69)  401.17                80
 12/19/2020   18:22:35   (  -0.00, -75.18) (   0.21, -74.16)  116.26                80
 12/21/2020   06:44:23   (   0.01, -75.20) (   0.95, -79.43)  482.86                80
 12/22/2020   06:22:59   (   0.01, -75.21) (  -0.05, -74.90)   34.86                80
 12/24/2020   18:26:12   (  -0.01, -75.26) (  -0.10, -75.69)   48.74                80
 12/25/2020   18:10:07   (  -0.01, -75.28) (   0.91, -71.16)  469.55                80
 12/27/2020   06:31:56   (   0.01, -75.30) (   0.25, -76.43)  128.41                80