Simultaneous Nadir Overpasses (SNOs) between GOES-16 and NPP
TLE Epoch: 2021 7 15.  Predictions up to the next  14.0 days:

     Date     Time(GOES-16)   GOES-16 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 07/15/2021   18:23:16   (   0.07, -75.18) (   0.26, -74.29)  101.61                80
 07/17/2021   06:42:25   (  -0.08, -75.19) (   0.90, -79.56)  498.88                80
 07/18/2021   06:26:22   (  -0.08, -75.19) (  -0.14, -75.04)   18.27                80
 07/20/2021   18:26:56   (   0.09, -75.22) (  -0.02, -75.82)   68.29                80
 07/21/2021   18:10:51   (   0.09, -75.23) (   0.96, -71.29)  449.01                80
 07/23/2021   06:30:01   (  -0.10, -75.24) (   0.19, -76.56)  150.85                80
 07/24/2021   06:13:57   (  -0.10, -75.25) (  -0.85, -72.04)  366.66                80
 07/25/2021   18:33:14   (   0.11, -75.28) (  -0.34, -77.35)  235.73                80
 07/26/2021   18:17:10   (   0.11, -75.29) (   0.64, -72.81)  282.63                80
 07/28/2021   06:36:19   (  -0.12, -75.33) (   0.52, -78.09)  315.11                80