Simultaneous Nadir Overpasses (SNOs) between GOES-16 and NPP
TLE Epoch: 2021 7 19.  Predictions up to the next  14.0 days:

     Date     Time(GOES-16)   GOES-16 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 07/20/2021   18:26:55   (   0.08, -75.20) (  -0.05, -75.82)   70.26                80
 07/21/2021   18:10:51   (   0.08, -75.20) (   0.93, -71.28)  446.12                80
 07/23/2021   06:30:00   (  -0.10, -75.20) (   0.22, -76.56)  154.74                80
 07/24/2021   06:13:57   (  -0.09, -75.21) (  -0.82, -72.03)  361.92                80
 07/25/2021   18:33:14   (   0.10, -75.22) (  -0.37, -77.34)  242.04                80
 07/26/2021   18:17:09   (   0.10, -75.23) (   0.62, -72.80)  275.48                80
 07/28/2021   06:36:19   (  -0.11, -75.25) (   0.53, -78.08)  323.20                80
 07/29/2021   06:20:15   (  -0.11, -75.26) (  -0.51, -73.56)  194.67                80
 07/30/2021   18:39:32   (   0.12, -75.28) (  -0.68, -78.87)  408.06                80
 07/31/2021   18:23:28   (   0.11, -75.30) (   0.30, -74.33)  110.30                80