Simultaneous Nadir Overpasses (SNOs) between GOES-16 and NPP
TLE Epoch: 2021 1 9.  Predictions up to the next  14.0 days:

     Date     Time(GOES-16)   GOES-16 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 01/09/2021   18:26:14   (   0.01, -75.19) (  -0.12, -75.70)   59.07                80
 01/10/2021   18:10:10   (   0.01, -75.19) (   0.90, -71.17)  457.22                80
 01/12/2021   06:31:58   (  -0.02, -75.18) (   0.25, -76.45)  144.32                80
 01/13/2021   06:10:33   (  -0.02, -75.18) (  -0.76, -71.92)  372.16                80
 01/14/2021   18:32:30   (   0.02, -75.20) (  -0.44, -77.22)  230.87                80
 01/15/2021   18:16:25   (   0.03, -75.21) (   0.58, -72.69)  286.45                80
 01/17/2021   06:38:13   (  -0.03, -75.22) (   0.58, -77.97)  313.04                80
 01/18/2021   06:16:49   (  -0.03, -75.23) (  -0.44, -73.44)  204.63                80
 01/19/2021   18:38:45   (   0.03, -75.26) (  -0.75, -78.74)  397.02                80
 01/20/2021   18:22:41   (   0.03, -75.28) (   0.26, -74.22)  121.21                80
 01/22/2021   06:44:29   (  -0.04, -75.30) (   0.89, -79.49)  476.86                80