Simultaneous Nadir Overpasses (SNOs) between GOES-16 and NPP
TLE Epoch: 2021 9 26.  Predictions up to the next  14.0 days:

     Date     Time(GOES-16)   GOES-16 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 09/26/2021   06:11:48   (  -0.10, -75.19) (  -0.82, -72.08)  354.65                80
 09/27/2021   18:33:45   (   0.10, -75.20) (  -0.40, -77.38)  249.01                80
 09/28/2021   18:17:40   (   0.11, -75.20) (   0.61, -72.85)  267.45                80
 09/30/2021   06:39:28   (  -0.10, -75.19) (   0.56, -78.12)  333.31                80
 10/01/2021   06:18:04   (  -0.11, -75.20) (  -0.45, -73.58)  183.21                80
 10/02/2021   18:42:41   (   0.11, -75.21) (  -0.71, -78.89)  419.83                80
 10/03/2021   18:21:17   (   0.11, -75.22) (   0.30, -74.36)   97.26                80
 10/06/2021   06:24:21   (  -0.11, -75.23) (  -0.14, -75.10)   15.25                80
 10/08/2021   18:30:12   (   0.11, -75.26) (  -0.05, -75.87)   69.29                80
 10/09/2021   18:08:48   (   0.11, -75.27) (   0.97, -71.33)  448.35                80