Simultaneous Nadir Overpasses (SNOs) between GOES-16 and NPP
TLE Epoch: 2021 8 30.  Predictions up to the next  14.0 days:

     Date     Time(GOES-16)   GOES-16 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 08/30/2021   06:17:53   (  -0.13, -75.21) (  -0.52, -73.59)  184.30                80
 08/31/2021   18:39:51   (   0.14, -75.22) (  -0.67, -78.90)  419.12                80
 09/01/2021   18:23:46   (   0.14, -75.23) (   0.33, -74.37)   97.74                80
 09/04/2021   06:24:10   (  -0.15, -75.23) (  -0.15, -75.10)   14.65                80
 09/06/2021   18:27:24   (   0.15, -75.27) (   0.03, -75.89)   70.78                80
 09/07/2021   18:11:19   (   0.15, -75.28) (   1.03, -71.36)  446.98                80
 09/09/2021   06:33:08   (  -0.15, -75.29) (   0.14, -76.63)  151.82                80
 09/10/2021   06:11:43   (  -0.15, -75.31) (  -0.85, -72.09)  366.01                80
 09/11/2021   18:33:40   (   0.16, -75.33) (  -0.31, -77.40)  235.75                80
 09/12/2021   18:17:36   (   0.16, -75.35) (   0.69, -72.87)  282.29                80