Simultaneous Nadir Overpasses (SNOs) between GOES-16 and NPP
TLE Epoch: 2021 9 2.  Predictions up to the next  14.0 days:

     Date     Time(GOES-16)   GOES-16 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 09/04/2021   06:24:10   (  -0.14, -75.19) (  -0.14, -75.10)   10.32                80
 09/06/2021   18:27:24   (   0.15, -75.21) (   0.02, -75.89)   76.81                80
 09/07/2021   18:11:19   (   0.15, -75.21) (   1.02, -71.35)  440.17                80
 09/09/2021   06:33:07   (  -0.15, -75.22) (   0.16, -76.62)  160.12                80
 09/10/2021   06:11:43   (  -0.15, -75.22) (  -0.84, -72.09)  356.92                80
 09/11/2021   18:33:40   (   0.15, -75.24) (  -0.34, -77.40)  245.77                80
 09/12/2021   18:17:36   (   0.15, -75.25) (   0.66, -72.86)  271.45                80
 09/14/2021   06:39:24   (  -0.16, -75.26) (   0.51, -78.13)  328.36                80
 09/15/2021   06:18:01   (  -0.16, -75.27) (  -0.54, -73.61)  188.80                80