Simultaneous Nadir Overpasses (SNOs) between GOES-16 and NPP
TLE Epoch: 2021 6 3.  Predictions up to the next  14.0 days:

     Date     Time(GOES-16)   GOES-16 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 06/03/2021   18:10:13   (   0.01, -75.25) (   0.92, -71.17)  464.71                80
 06/05/2021   06:32:03   (  -0.01, -75.26) (   0.23, -76.45)  135.08                80
 06/06/2021   06:10:38   (  -0.01, -75.28) (  -0.76, -71.92)  382.81                80
 06/07/2021   18:32:36   (   0.02, -75.31) (  -0.43, -77.22)  218.33                80
 06/08/2021   18:16:32   (   0.02, -75.33) (   0.61, -72.70)  299.87                80
 06/10/2021   06:38:21   (  -0.03, -75.35) (   0.54, -77.98)  299.09                80
 06/11/2021   06:19:37   (  -0.02, -75.37) (  -0.45, -73.44)  219.19                80
 06/12/2021   18:38:54   (   0.03, -75.40) (  -0.73, -78.75)  381.54                80
 06/13/2021   18:22:51   (   0.02, -75.43) (   0.31, -74.23)  137.13                80
 06/15/2021   06:41:59   (  -0.03, -75.45) (   0.90, -79.49)  460.90                80
 06/16/2021   06:25:56   (  -0.02, -75.48) (  -0.14, -74.97)   58.01                80