Simultaneous Nadir Overpasses (SNOs) between GOES-16 and NPP
TLE Epoch: 2021 2 18.  Predictions up to the next  14.0 days:

     Date     Time(GOES-16)   GOES-16 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 02/18/2021   06:38:12   (   0.00, -75.15) (   0.61, -77.97)  321.42                80
 02/19/2021   06:16:47   (   0.00, -75.16) (  -0.36, -73.43)  195.88                80
 02/20/2021   18:38:43   (   0.00, -75.17) (  -0.81, -78.74)  406.95                80
 02/21/2021   18:22:39   (   0.00, -75.18) (   0.22, -74.21)  110.66                80
 02/23/2021   06:44:27   (  -0.01, -75.20) (   0.93, -79.49)  487.89                80
 02/24/2021   06:23:03   (  -0.01, -75.21) (  -0.10, -74.96)   29.88                80
 02/26/2021   18:26:13   (   0.02, -75.25) (  -0.09, -75.73)   54.63                80
 02/27/2021   18:10:09   (   0.02, -75.26) (   0.94, -71.20)  463.75                80
 03/01/2021   06:31:56   (  -0.02, -75.30) (   0.27, -76.46)  133.36                80
 03/02/2021   06:10:32   (  -0.02, -75.31) (  -0.77, -71.93)  385.17                80
 03/03/2021   18:32:28   (   0.02, -75.34) (  -0.39, -77.24)  216.28                80