Simultaneous Nadir Overpasses (SNOs) between GOES-16 and NPP
TLE Epoch: 2021 8 11.  Predictions up to the next  14.0 days:

     Date     Time(GOES-16)   GOES-16 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 08/11/2021   18:17:20   (   0.11, -75.22) (   0.63, -72.83)  272.55                80
 08/13/2021   06:36:29   (  -0.12, -75.22) (   0.50, -78.11)  328.38                80
 08/14/2021   06:20:24   (  -0.12, -75.23) (  -0.49, -73.57)  188.12                80
 08/15/2021   18:39:42   (   0.13, -75.23) (  -0.70, -78.88)  416.30                80
 08/16/2021   18:23:38   (   0.13, -75.23) (   0.34, -74.36)  100.34                80
 08/19/2021   06:24:02   (  -0.14, -75.24) (  -0.15, -75.09)   16.90                80
 08/21/2021   18:27:16   (   0.15, -75.26) (   0.01, -75.88)   69.94                80
 08/22/2021   18:11:12   (   0.15, -75.28) (   1.06, -71.35)  447.73                80
 08/24/2021   06:33:01   (  -0.16, -75.30) (   0.13, -76.62)  150.57                80