Simultaneous Nadir Overpasses (SNOs) between GOES-16 and NPP
TLE Epoch: 2021 12 1.  Predictions up to the next  14.0 days:

     Date     Time(GOES-16)   GOES-16 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 12/01/2021   18:18:19   (  -0.01, -75.19) (   0.52, -72.90)  262.29                80
 12/03/2021   06:40:05   (   0.01, -75.19) (   0.65, -78.16)  338.59                80
 12/04/2021   06:18:39   (   0.01, -75.19) (  -0.32, -73.62)  178.11                80
 12/05/2021   18:40:34   (  -0.01, -75.19) (  -0.84, -78.93)  425.59                80
 12/06/2021   18:24:28   (  -0.01, -75.19) (   0.19, -74.40)   91.37                80
 12/09/2021   06:24:48   (   0.01, -75.20) (   0.00, -75.12)    8.76                80
 12/11/2021   18:27:57   (  -0.00, -75.23) (  -0.18, -75.88)   75.75                80
 12/12/2021   18:11:52   (  -0.00, -75.24) (   0.85, -71.35)  442.57                80
 12/14/2021   06:33:38   (   0.00, -75.26) (   0.31, -76.62)  155.32                80