Simultaneous Nadir Overpasses (SNOs) between GOES-16 and NPP
TLE Epoch: 2021 1 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)
 01/23/2021   06:23:03   (   0.01, -75.20) (  -0.05, -74.94)   29.96                80
 01/25/2021   18:26:15   (  -0.01, -75.20) (  -0.12, -75.72)   58.86                80
 01/26/2021   18:10:11   (  -0.01, -75.20) (   0.90, -71.19)  457.51                80
 01/28/2021   06:31:58   (   0.01, -75.20) (   0.31, -76.45)  142.80                80
 01/29/2021   06:10:33   (   0.00, -75.20) (  -0.71, -71.92)  373.67                80
 01/30/2021   18:32:30   (  -0.00, -75.21) (  -0.47, -77.23)  230.62                80
 01/31/2021   18:16:25   (  -0.00, -75.21) (   0.55, -72.70)  286.49                80
 02/02/2021   06:38:14   (   0.01, -75.23) (   0.60, -77.98)  312.29                80
 02/03/2021   06:16:49   (   0.00, -75.24) (  -0.43, -73.45)  204.90                80
 02/04/2021   18:38:44   (  -0.00, -75.24) (  -0.81, -78.74)  398.85                80
 02/05/2021   18:22:40   (  -0.00, -75.26) (   0.22, -74.21)  118.69                80