Simultaneous Nadir Overpasses (SNOs) between GOES-16 and NPP
TLE Epoch: 2021 7 17.  Predictions up to the next  14.0 days:

     Date     Time(GOES-16)   GOES-16 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 07/17/2021   06:42:25   (  -0.08, -75.19) (   0.91, -79.56)  498.36                80
 07/18/2021   06:26:22   (  -0.08, -75.20) (  -0.13, -75.04)   18.86                80
 07/20/2021   18:26:56   (   0.09, -75.23) (  -0.02, -75.82)   67.22                80
 07/21/2021   18:10:51   (   0.08, -75.24) (   0.96, -71.29)  450.24                80
 07/23/2021   06:30:00   (  -0.10, -75.25) (   0.19, -76.56)  149.30                80
 07/24/2021   06:13:56   (  -0.09, -75.27) (  -0.79, -72.03)  368.38                80
 07/25/2021   18:33:14   (   0.11, -75.29) (  -0.34, -77.35)  233.80                80
 07/26/2021   18:17:10   (   0.10, -75.31) (   0.64, -72.81)  284.73                80
 07/28/2021   06:36:19   (  -0.11, -75.35) (   0.51, -78.09)  312.63                80
 07/29/2021   06:20:16   (  -0.11, -75.37) (  -0.53, -73.57)  206.26                80
 07/30/2021   18:39:33   (   0.12, -75.41) (  -0.65, -78.87)  394.68                80