Simultaneous Nadir Overpasses (SNOs) between GOES-16 and NPP
TLE Epoch: 2021 1 6.  Predictions up to the next  14.0 days:

     Date     Time(GOES-16)   GOES-16 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 01/06/2021   06:44:27   (  -0.02, -75.18) (   0.91, -79.47)  487.93                80
 01/07/2021   06:23:03   (  -0.02, -75.18) (  -0.10, -74.94)   28.40                80
 01/09/2021   18:26:13   (  -0.02, -75.19) (  -0.15, -75.70)   58.07                80
 01/10/2021   18:10:09   (  -0.01, -75.19) (   0.87, -71.17)  458.58                80
 01/12/2021   06:31:57   (   0.01, -75.19) (   0.28, -76.44)  142.33                80
 01/13/2021   06:10:33   (   0.01, -75.20) (  -0.73, -71.91)  374.47                80
 01/14/2021   18:32:29   (  -0.01, -75.22) (  -0.47, -77.22)  228.18                80
 01/15/2021   18:16:25   (  -0.01, -75.23) (   0.55, -72.69)  289.39                80
 01/17/2021   06:38:13   (   0.01, -75.24) (   0.60, -77.96)  309.60                80
 01/18/2021   06:16:48   (   0.01, -75.26) (  -0.42, -73.44)  208.25                80
 01/19/2021   18:38:45   (  -0.00, -75.29) (  -0.77, -78.74)  393.06                80