Simultaneous Nadir Overpasses (SNOs) between GOES-16 and NPP
TLE Epoch: 2021 6 5.  Predictions up to the next  14.0 days:

     Date     Time(GOES-16)   GOES-16 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 06/05/2021   06:29:22   (  -0.01, -75.23) (   0.27, -76.44)  138.60                80
 06/06/2021   06:13:19   (  -0.01, -75.23) (  -0.77, -71.92)  377.64                80
 06/07/2021   18:32:36   (   0.02, -75.24) (  -0.41, -77.22)  226.41                80
 06/08/2021   18:16:31   (   0.02, -75.24) (   0.57, -72.69)  290.13                80
 06/10/2021   06:35:41   (  -0.03, -75.24) (   0.58, -77.97)  310.90                80
 06/11/2021   06:19:36   (  -0.02, -75.24) (  -0.41, -73.43)  205.77                80
 06/12/2021   18:38:54   (   0.03, -75.25) (  -0.77, -78.74)  397.82                80
 06/13/2021   18:22:50   (   0.02, -75.26) (   0.27, -74.22)  119.19                80
 06/15/2021   06:41:58   (  -0.03, -75.27) (   0.94, -79.48)  480.97                80
 06/16/2021   06:25:55   (  -0.02, -75.28) (  -0.11, -74.96)   36.35                80
 06/18/2021   18:26:28   (   0.03, -75.31) (  -0.08, -75.73)   48.62                80