Simultaneous Nadir Overpasses (SNOs) between GOES-16 and NPP
TLE Epoch: 2020 6 21.  Predictions up to the next  14.0 days:

     Date     Time(GOES-16)   GOES-16 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 06/23/2020   06:38:07   (   0.00, -75.20) (   0.63, -77.88)  305.84                80
 06/24/2020   06:16:42   (   0.00, -75.20) (  -0.41, -73.35)  210.99                80
 06/25/2020   18:38:38   (  -0.01, -75.21) (  -0.80, -78.64)  391.76                80
 06/26/2020   18:22:33   (  -0.01, -75.22) (   0.24, -74.12)  125.66                80
 06/28/2020   06:44:20   (   0.01, -75.23) (   0.94, -79.38)  473.32                80
 06/29/2020   06:22:55   (   0.01, -75.24) (  -0.05, -74.84)   44.33                80
 07/01/2020   18:26:07   (   0.00, -75.27) (  -0.06, -75.62)   40.20                80
 07/02/2020   18:10:01   (   0.01, -75.28) (   0.93, -71.08)  477.74                80
 07/04/2020   06:31:49   (  -0.01, -75.30) (   0.25, -76.35)  120.42                80
 07/05/2020   06:10:24   (  -0.01, -75.31) (  -0.79, -71.82)  397.87                80