Simultaneous Nadir Overpasses (SNOs) between GOES-16 and NPP
TLE Epoch: 2021 12 17.  Predictions up to the next  14.0 days:

     Date     Time(GOES-16)   GOES-16 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 12/17/2021   18:18:01   (   0.01, -75.20) (   0.54, -72.85)  268.29                80
 12/19/2021   06:37:07   (  -0.01, -75.19) (   0.61, -78.12)  332.62                80
 12/20/2021   06:21:01   (  -0.00, -75.19) (  -0.36, -73.58)  183.82                80
 12/21/2021   18:40:15   (   0.01, -75.18) (  -0.84, -78.87)  420.78                80
 12/22/2021   18:24:09   (   0.00, -75.18) (   0.19, -74.34)   96.02                80
 12/25/2021   06:24:29   (  -0.00, -75.19) (  -0.02, -75.07)   13.30                80
 12/27/2021   18:27:38   (   0.01, -75.20) (  -0.14, -75.83)   72.99                80
 12/28/2021   18:11:33   (   0.00, -75.20) (   0.89, -71.30)  444.60                80
 12/30/2021   06:33:18   (   0.00, -75.21) (   0.31, -76.56)  154.01                80