Simultaneous Nadir Overpasses (SNOs) between GOES-16 and NPP
TLE Epoch: 2021 12 23.  Predictions up to the next  14.0 days:

     Date     Time(GOES-16)   GOES-16 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 12/25/2021   06:27:10   (  -0.03, -75.17) (  -0.06, -75.08)   11.52                80
 12/27/2021   18:27:39   (   0.03, -75.18) (  -0.10, -75.84)   74.49                80
 12/28/2021   18:11:32   (   0.02, -75.19) (   0.88, -71.30)  442.99                80
 12/30/2021   06:33:18   (  -0.02, -75.19) (   0.26, -76.57)  156.63                80
 12/31/2021   06:11:52   (  -0.02, -75.19) (  -0.73, -72.03)  360.81                80
 01/01/2022   18:33:46   (   0.01, -75.20) (  -0.47, -77.32)  241.96                80
 01/02/2022   18:17:40   (   0.00, -75.21) (   0.52, -72.78)  275.77                80
 01/04/2022   06:39:26   (  -0.00, -75.22) (   0.62, -78.05)  322.98                80
 01/05/2022   06:18:00   (   0.00, -75.23) (  -0.36, -73.51)  194.97                80