Simultaneous Nadir Overpasses (SNOs) between GOES-16 and NPP
TLE Epoch: 2021 11 1.  Predictions up to the next  14.0 days:

     Date     Time(GOES-16)   GOES-16 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 11/02/2021   06:18:34   (  -0.00, -75.26) (  -0.35, -73.63)  185.91                80
 11/03/2021   18:40:32   (  -0.00, -75.28) (  -0.83, -78.94)  417.40                80
 11/04/2021   18:24:28   (  -0.00, -75.29) (   0.17, -74.41)   99.56                80
 11/07/2021   06:24:55   (   0.01, -75.30) (  -0.01, -75.16)   16.54                80
 11/09/2021   18:28:10   (  -0.02, -75.33) (  -0.17, -75.94)   69.31                80
 11/10/2021   18:09:28   (  -0.01, -75.34) (   0.90, -71.42)  447.97                80
 11/12/2021   06:33:57   (   0.01, -75.36) (   0.32, -76.69)  150.90                80
 11/13/2021   06:12:33   (   0.01, -75.38) (  -0.69, -72.16)  366.96                80
 11/14/2021   18:37:12   (  -0.01, -75.41) (  -0.49, -77.47)  234.21                80
 11/15/2021   18:15:48   (  -0.01, -75.44) (   0.52, -72.94)  284.40                80