Simultaneous Nadir Overpasses (SNOs) between GOES-16 and NPP
TLE Epoch: 2021 7 4.  Predictions up to the next  14.0 days:

     Date     Time(GOES-16)   GOES-16 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 07/04/2021   18:26:43   (   0.06, -75.13) (  -0.08, -75.78)   73.07                80
 07/05/2021   18:10:39   (   0.05, -75.14) (   0.95, -71.25)  443.37                80
 07/07/2021   06:29:48   (  -0.07, -75.13) (   0.27, -76.51)  158.74                80
 07/08/2021   06:13:44   (  -0.06, -75.13) (  -0.77, -71.99)  357.72                80
 07/09/2021   18:33:01   (   0.08, -75.14) (  -0.42, -77.30)  245.73                80
 07/10/2021   18:16:58   (   0.07, -75.15) (   0.61, -72.77)  271.15                80
 07/12/2021   06:36:07   (  -0.08, -75.15) (   0.55, -78.05)  329.85                80
 07/13/2021   06:20:03   (  -0.08, -75.16) (  -0.43, -73.51)  187.24                80
 07/14/2021   18:39:21   (   0.09, -75.18) (  -0.70, -78.83)  415.49                80
 07/15/2021   18:23:17   (   0.08, -75.19) (   0.28, -74.30)  102.16                80
 07/17/2021   06:42:26   (  -0.10, -75.21) (   0.88, -79.57)  497.43                80