Simultaneous Nadir Overpasses (SNOs) between GOES-16 and NPP
TLE Epoch: 2021 6 24.  Predictions up to the next  14.0 days:

     Date     Time(GOES-16)   GOES-16 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 06/24/2021   18:16:45   (   0.04, -75.14) (   0.58, -72.73)  274.81                80
 06/26/2021   06:35:54   (  -0.05, -75.10) (   0.58, -78.01)  330.27                80
 06/27/2021   06:19:50   (  -0.05, -75.08) (  -0.39, -73.47)  183.41                80
 06/28/2021   18:39:07   (   0.06, -75.05) (  -0.81, -78.77)  425.46                80
 06/29/2021   18:23:03   (   0.05, -75.03) (   0.23, -74.25)   89.03                80
 07/02/2021   06:23:28   (  -0.06, -75.00) (  -0.03, -74.99)    3.11                80
 07/04/2021   18:26:42   (   0.06, -74.97) (  -0.13, -75.77)   91.66                80
 07/05/2021   18:10:39   (   0.06, -74.96) (   0.91, -71.24)  423.64                80
 07/07/2021   06:29:48   (  -0.08, -74.95) (   0.26, -76.52)  178.27                80