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

     Date     Time(GOES-16)   GOES-16 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 10/08/2021   18:30:12   (   0.07, -75.20) (  -0.10, -75.85)   74.57                80
 10/09/2021   18:08:48   (   0.07, -75.20) (   0.97, -71.33)  441.62                80
 10/11/2021   06:33:15   (  -0.07, -75.19) (   0.25, -76.59)  159.12                80
 10/12/2021   06:11:51   (  -0.07, -75.19) (  -0.76, -72.06)  356.96                80
 10/13/2021   18:36:27   (   0.07, -75.19) (  -0.44, -77.36)  247.08                80
 10/14/2021   18:15:04   (   0.07, -75.20) (   0.63, -72.84)  269.55                80
 10/16/2021   06:39:31   (  -0.07, -75.20) (   0.59, -78.09)  329.73                80
 10/17/2021   06:18:07   (  -0.07, -75.21) (  -0.42, -73.56)  187.43                80
 10/18/2021   18:42:43   (   0.06, -75.23) (  -0.77, -78.86)  414.81                80
 10/19/2021   18:21:18   (   0.07, -75.24) (   0.25, -74.33)  103.01                80
 10/21/2021   06:45:47   (  -0.05, -75.26) (   0.92, -79.60)  494.49                80