Simultaneous Nadir Overpasses (SNOs) between GOES-16 and NPP
TLE Epoch: 2021 1 24.  Predictions up to the next  14.0 days:

     Date     Time(GOES-16)   GOES-16 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 01/25/2021   18:26:15   (  -0.01, -75.20) (  -0.11, -75.72)   58.73                80
 01/26/2021   18:10:11   (  -0.01, -75.20) (   0.91, -71.19)  457.74                80
 01/28/2021   06:31:58   (   0.01, -75.21) (   0.29, -76.45)  142.51                80
 01/29/2021   06:10:34   (   0.01, -75.21) (  -0.73, -71.93)  373.97                80
 01/30/2021   18:32:30   (  -0.01, -75.21) (  -0.46, -77.23)  230.24                80
 01/31/2021   18:16:25   (  -0.01, -75.22) (   0.57, -72.70)  286.90                80
 02/02/2021   06:38:13   (   0.01, -75.24) (   0.64, -77.96)  311.81                80
 02/03/2021   06:16:48   (   0.00, -75.24) (  -0.38, -73.44)  205.40                80
 02/04/2021   18:38:45   (  -0.00, -75.25) (  -0.80, -78.74)  398.27                80
 02/05/2021   18:22:40   (  -0.00, -75.26) (   0.23, -74.21)  119.30                80