Simultaneous Nadir Overpasses (SNOs) between GOES-16 and NPP
TLE Epoch: 2020 6 13.  Predictions up to the next  14.0 days:

     Date     Time(GOES-16)   GOES-16 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 06/15/2020   18:26:12   (  -0.01, -75.19) (  -0.10, -75.65)   52.24                80
 06/16/2020   18:10:06   (  -0.00, -75.20) (   0.89, -71.11)  465.41                80
 06/18/2020   06:31:55   (   0.00, -75.21) (   0.24, -76.39)  133.93                80
 06/19/2020   06:10:29   (  -0.00, -75.22) (  -0.75, -71.85)  383.66                80
 06/20/2020   18:32:25   (   0.01, -75.24) (  -0.41, -77.16)  217.96                80
 06/21/2020   18:16:20   (   0.01, -75.26) (   0.58, -72.62)  300.00                80
 06/23/2020   06:38:07   (  -0.01, -75.27) (   0.60, -77.88)  298.55                80
 06/24/2020   06:16:43   (  -0.01, -75.28) (  -0.44, -73.36)  219.49                80
 06/25/2020   18:38:38   (   0.00, -75.31) (  -0.76, -78.65)  381.65                80
 06/26/2020   18:22:34   (   0.00, -75.33) (   0.28, -74.13)  136.94                80