Simultaneous Nadir Overpasses (SNOs) between GOES-16 and NPP
TLE Epoch: 2021 6 25.  Predictions up to the next  14.0 days:

     Date     Time(GOES-16)   GOES-16 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 06/26/2021   06:35:54   (  -0.05, -75.14) (   0.60, -78.00)  325.94                80
 06/27/2021   06:19:50   (  -0.05, -75.14) (  -0.44, -73.48)  189.70                80
 06/28/2021   18:39:08   (   0.06, -75.14) (  -0.76, -78.78)  415.50                80
 06/29/2021   18:23:04   (   0.05, -75.14) (   0.27, -74.26)  101.00                80
 07/01/2021   06:42:14   (  -0.06, -75.15) (   0.90, -79.53)  499.61                80
 07/02/2021   06:23:29   (  -0.05, -75.15) (  -0.08, -75.00)   17.18                80
 07/04/2021   18:26:43   (   0.06, -75.17) (  -0.08, -75.78)   69.78                80
 07/05/2021   18:10:39   (   0.06, -75.18) (   0.95, -71.25)  447.49                80
 07/07/2021   06:29:49   (  -0.08, -75.19) (   0.22, -76.53)  152.01                80
 07/08/2021   06:13:45   (  -0.07, -75.20) (  -0.82, -72.01)  365.24                80