Simultaneous Nadir Overpasses (SNOs) between GOES-16 and NPP
TLE Epoch: 2021 6 29.  Predictions up to the next  14.0 days:

     Date     Time(GOES-16)   GOES-16 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 06/29/2021   18:23:04   (   0.05, -75.14) (   0.26, -74.26)  100.99                80
 07/01/2021   06:42:13   (  -0.06, -75.14) (   0.90, -79.53)  499.80                80
 07/02/2021   06:23:29   (  -0.05, -75.15) (  -0.07, -74.99)   16.94                80
 07/04/2021   18:26:43   (   0.06, -75.16) (  -0.08, -75.78)   70.15                80
 07/05/2021   18:10:39   (   0.06, -75.17) (   0.95, -71.25)  447.05                80
 07/07/2021   06:29:49   (  -0.07, -75.19) (   0.21, -76.53)  152.64                80
 07/08/2021   06:13:44   (  -0.07, -75.20) (  -0.76, -71.99)  364.54                80
 07/09/2021   18:33:02   (   0.09, -75.21) (  -0.36, -77.31)  239.14                80
 07/10/2021   18:16:58   (   0.08, -75.22) (   0.61, -72.77)  278.50                80
 07/12/2021   06:36:07   (  -0.09, -75.25) (   0.55, -78.05)  320.08                80