Simultaneous Nadir Overpasses (SNOs) between GOES-16 and NPP
TLE Epoch: 2021 7 1.  Predictions up to the next  14.0 days:

     Date     Time(GOES-16)   GOES-16 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 07/02/2021   06:26:09   (  -0.05, -75.12) (  -0.10, -75.00)   14.76                80
 07/04/2021   18:26:43   (   0.06, -75.13) (  -0.06, -75.78)   73.09                80
 07/05/2021   18:10:39   (   0.06, -75.14) (   0.92, -71.24)  443.52                80
 07/07/2021   06:29:48   (  -0.07, -75.13) (   0.24, -76.52)  158.15                80
 07/08/2021   06:13:45   (  -0.07, -75.14) (  -0.79, -72.00)  358.39                80
 07/09/2021   18:33:02   (   0.08, -75.15) (  -0.39, -77.30)  245.17                80
 07/10/2021   18:16:57   (   0.07, -75.16) (   0.59, -72.77)  271.82                80
 07/12/2021   06:36:07   (  -0.09, -75.16) (   0.58, -78.04)  328.77                80
 07/13/2021   06:20:03   (  -0.08, -75.17) (  -0.46, -73.52)  188.42                80
 07/14/2021   18:39:20   (   0.09, -75.19) (  -0.72, -78.83)  414.41                80
 07/15/2021   18:23:16   (   0.09, -75.20) (   0.26, -74.29)  103.39                80