Simultaneous Nadir Overpasses (SNOs) between GOES-16 and NPP
TLE Epoch: 2021 6 22.  Predictions up to the next  14.0 days:

     Date     Time(GOES-16)   GOES-16 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 06/22/2021   06:13:32   (  -0.04, -75.17) (  -0.79, -71.96)  367.07                80
 06/23/2021   18:32:49   (   0.05, -75.16) (  -0.41, -77.26)  239.80                80
 06/24/2021   18:16:44   (   0.04, -75.15) (   0.56, -72.72)  275.25                80
 06/26/2021   06:35:54   (  -0.05, -75.13) (   0.61, -78.00)  327.72                80
 06/27/2021   06:19:50   (  -0.05, -75.12) (  -0.42, -73.48)  187.64                80
 06/28/2021   18:39:07   (   0.06, -75.11) (  -0.77, -78.78)  418.20                80
 06/29/2021   18:23:04   (   0.05, -75.11) (   0.26, -74.26)   97.99                80
 07/02/2021   06:23:29   (  -0.06, -75.12) (  -0.07, -75.00)   13.77                80
 07/04/2021   18:26:43   (   0.07, -75.13) (  -0.09, -75.78)   74.17                80
 07/05/2021   18:10:39   (   0.06, -75.14) (   0.95, -71.25)  442.83                80