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

     Date     Time(GOES-16)   GOES-16 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 12/12/2021   18:11:51   (   0.01, -75.21) (   0.85, -71.35)  438.77                80
 12/14/2021   06:30:58   (  -0.01, -75.22) (   0.31, -76.62)  160.00                80
 12/15/2021   06:12:12   (  -0.01, -75.23) (  -0.72, -72.09)  358.11                80
 12/16/2021   18:34:06   (   0.01, -75.25) (  -0.49, -77.38)  243.59                80
 12/17/2021   18:18:01   (   0.00, -75.26) (   0.55, -72.85)  274.83                80
 12/19/2021   06:39:47   (   0.00, -75.28) (   0.61, -78.12)  322.96                80
 12/20/2021   06:18:21   (   0.01, -75.30) (  -0.37, -73.58)  195.52                80
 12/21/2021   18:40:16   (  -0.01, -75.32) (  -0.78, -78.89)  405.73                80
 12/22/2021   18:24:10   (  -0.01, -75.34) (   0.20, -74.34)  113.13                80
 12/24/2021   06:45:56   (   0.01, -75.37) (   0.95, -79.61)  483.54                80
 12/25/2021   06:24:30   (   0.01, -75.39) (  -0.08, -75.08)   35.55                80