Simultaneous Nadir Overpasses (SNOs) between GOES-16 and NPP
TLE Epoch: 2021 7 10.  Predictions up to the next  14.0 days:

     Date     Time(GOES-16)   GOES-16 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 07/10/2021   18:16:58   (   0.07, -75.16) (   0.61, -72.77)  272.26                80
 07/12/2021   06:36:07   (  -0.08, -75.16) (   0.55, -78.05)  328.48                80
 07/13/2021   06:20:03   (  -0.07, -75.17) (  -0.43, -73.51)  189.02                80
 07/14/2021   18:39:21   (   0.08, -75.20) (  -0.71, -78.83)  412.68                80
 07/15/2021   18:23:17   (   0.08, -75.22) (   0.27, -74.29)  105.36                80
 07/17/2021   06:42:26   (  -0.09, -75.24) (   0.89, -79.57)  494.00                80
 07/18/2021   06:26:22   (  -0.09, -75.25) (  -0.15, -75.05)   24.07                80
 07/20/2021   18:26:56   (   0.10, -75.30) (  -0.00, -75.83)   59.28                80
 07/21/2021   18:10:52   (   0.09, -75.32) (   0.98, -71.29)  459.03                80
 07/23/2021   06:30:01   (  -0.11, -75.35) (   0.18, -76.57)  139.74                80