Simultaneous Nadir Overpasses (SNOs) between GOES-16 and NPP
TLE Epoch: 2021 9 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)
 09/09/2021   06:33:07   (  -0.14, -75.20) (   0.18, -76.62)  161.59                80
 09/10/2021   06:11:43   (  -0.14, -75.20) (  -0.82, -72.08)  355.07                80
 09/11/2021   18:33:40   (   0.14, -75.21) (  -0.36, -77.39)  248.67                80
 09/12/2021   18:17:36   (   0.15, -75.22) (   0.70, -72.87)  268.14                80
 09/14/2021   06:39:25   (  -0.15, -75.22) (   0.47, -78.14)  331.87                80
 09/15/2021   06:18:00   (  -0.15, -75.23) (  -0.52, -73.61)  184.91                80
 09/16/2021   18:39:58   (   0.16, -75.24) (  -0.65, -78.91)  418.44                80
 09/17/2021   18:23:53   (   0.16, -75.25) (   0.36, -74.38)   99.00                80
 09/19/2021   06:45:41   (  -0.16, -75.27) (   0.82, -79.65)  499.24                80
 09/20/2021   06:24:17   (  -0.16, -75.28) (  -0.18, -75.12)   18.77                80
 09/22/2021   18:30:10   (   0.16, -75.33) (   0.03, -75.89)   64.32                80