Simultaneous Nadir Overpasses (SNOs) between GOES-16 and NPP
TLE Epoch: 2021 12 25.  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) (  -0.07, -75.08)   11.64                80
 12/27/2021   18:27:39   (   0.03, -75.19) (  -0.09, -75.84)   74.03                80
 12/28/2021   18:11:32   (   0.03, -75.19) (   0.89, -71.30)  443.56                80
 12/30/2021   06:33:18   (  -0.03, -75.20) (   0.31, -76.56)  156.11                80
 12/31/2021   06:11:52   (  -0.02, -75.20) (  -0.73, -72.03)  361.43                80
 01/01/2022   18:33:46   (   0.01, -75.21) (  -0.46, -77.33)  240.98                80
 01/02/2022   18:17:40   (   0.00, -75.22) (   0.52, -72.78)  276.84                80
 01/04/2022   06:39:26   (  -0.00, -75.23) (   0.61, -78.06)  321.96                80
 01/05/2022   06:18:00   (   0.00, -75.24) (  -0.37, -73.51)  196.08                80
 01/06/2022   18:39:54   (   0.00, -75.26) (  -0.81, -78.81)  405.37                80
 01/07/2022   18:23:49   (   0.01, -75.28) (   0.23, -74.28)  113.40                80