Simultaneous Nadir Overpasses (SNOs) between GOES-16 and NPP
TLE Epoch: 2021 11 30.  Predictions up to the next  14.0 days:

     Date     Time(GOES-16)   GOES-16 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 11/30/2021   18:34:24   (  -0.00, -75.20) (  -0.51, -77.43)  254.48                80
 12/01/2021   18:18:19   (  -0.01, -75.19) (   0.52, -72.90)  262.24                80
 12/03/2021   06:40:05   (   0.01, -75.19) (   0.65, -78.16)  338.71                80
 12/04/2021   06:18:39   (   0.01, -75.19) (  -0.32, -73.62)  177.95                80
 12/05/2021   18:40:34   (  -0.01, -75.19) (  -0.83, -78.93)  425.82                80
 12/06/2021   18:24:28   (  -0.01, -75.19) (   0.19, -74.40)   91.10                80
 12/09/2021   06:24:48   (   0.01, -75.20) (  -0.00, -75.12)    8.31                80
 12/11/2021   18:27:57   (  -0.00, -75.22) (  -0.17, -75.89)   76.19                80
 12/12/2021   18:11:52   (  -0.00, -75.24) (   0.86, -71.36)  442.05                80