Simultaneous Nadir Overpasses (SNOs) between GOES-16 and NPP
TLE Epoch: 2021 6 9.  Predictions up to the next  14.0 days:

     Date     Time(GOES-16)   GOES-16 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 06/10/2021   06:35:40   (  -0.03, -75.23) (   0.59, -77.96)  311.30                80
 06/11/2021   06:19:37   (  -0.02, -75.24) (  -0.45, -73.44)  205.30                80
 06/12/2021   18:38:54   (   0.03, -75.25) (  -0.73, -78.75)  398.23                80
 06/13/2021   18:22:50   (   0.02, -75.25) (   0.25, -74.21)  118.67                80
 06/15/2021   06:41:59   (  -0.03, -75.26) (   0.90, -79.49)  481.80                80
 06/16/2021   06:25:55   (  -0.02, -75.27) (  -0.09, -74.96)   35.41                80
 06/18/2021   18:26:28   (   0.03, -75.30) (  -0.04, -75.74)   49.63                80
 06/19/2021   18:10:24   (   0.02, -75.31) (   0.94, -71.21)  468.14                80
 06/21/2021   06:29:33   (  -0.03, -75.33) (   0.21, -76.48)  131.41                80
 06/22/2021   06:13:29   (  -0.03, -75.34) (  -0.78, -71.95)  386.30                80