Simultaneous Nadir Overpasses (SNOs) between GOES-16 and NPP
TLE Epoch: 2020 12 21.  Predictions up to the next  14.0 days:

     Date     Time(GOES-16)   GOES-16 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 12/21/2020   06:44:23   (  -0.00, -75.17) (   0.97, -79.43)  485.55                80
 12/22/2020   06:22:59   (  -0.00, -75.18) (  -0.04, -74.90)   31.68                80
 12/24/2020   18:26:11   (  -0.00, -75.21) (  -0.12, -75.68)   53.44                80
 12/25/2020   18:10:07   (  -0.01, -75.23) (   0.90, -71.15)  464.41                80
 12/27/2020   06:31:55   (   0.01, -75.25) (   0.26, -76.43)  134.31                80
 12/28/2020   06:10:31   (   0.01, -75.26) (  -0.75, -71.90)  383.38                80
 12/29/2020   18:32:27   (  -0.01, -75.28) (  -0.46, -77.20)  218.89                80
 12/30/2020   18:16:24   (  -0.01, -75.30) (   0.61, -72.68)  299.19                80
 01/01/2021   06:38:11   (   0.01, -75.33) (   0.61, -77.94)  298.73                80
 01/02/2021   06:16:46   (   0.01, -75.34) (  -0.41, -73.42)  219.42                80
 01/03/2021   18:38:44   (  -0.01, -75.37) (  -0.74, -78.73)  382.19                80