Simultaneous Nadir Overpasses (SNOs) between GOES-16 and NPP
TLE Epoch: 2021 7 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)
 07/24/2021   06:13:56   (  -0.09, -75.20) (  -0.81, -72.03)  362.03                80
 07/25/2021   18:33:14   (   0.10, -75.22) (  -0.38, -77.34)  241.66                80
 07/26/2021   18:17:10   (   0.10, -75.23) (   0.66, -72.81)  275.81                80
 07/28/2021   06:38:58   (  -0.11, -75.25) (   0.54, -78.08)  323.21                80
 07/29/2021   06:20:15   (  -0.10, -75.26) (  -0.50, -73.56)  194.59                80
 07/30/2021   18:39:32   (   0.11, -75.28) (  -0.69, -78.86)  407.95                80
 07/31/2021   18:23:29   (   0.11, -75.30) (   0.35, -74.34)  110.35                80
 08/02/2021   06:45:17   (  -0.12, -75.33) (   0.86, -79.60)  487.31                80
 08/03/2021   06:26:34   (  -0.12, -75.35) (  -0.19, -75.08)   30.90                80
 08/05/2021   18:27:07   (   0.13, -75.40) (   0.04, -75.86)   52.89                80
 08/06/2021   18:11:03   (   0.13, -75.42) (   1.03, -71.33)  465.84                80