Simultaneous Nadir Overpasses (SNOs) between GOES-14 and NPP
TLE Epoch: 2021 7 15.  Predictions up to the next  14.0 days:

     Date     Time(GOES-14)   GOES-14 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 07/17/2021   08:24:11   (  -0.21,-104.10) (  -0.01,-105.14)  117.65                80
 07/18/2021   08:08:06   (  -0.20,-104.10) (  -0.99,-100.61)  398.90                80
 07/19/2021   20:27:25   (   0.23,-104.34) (  -0.14,-105.92)  180.68                80
 07/20/2021   20:11:21   (   0.22,-104.35) (   0.90,-101.40)  336.03                80
 07/22/2021   08:30:29   (  -0.26,-104.11) (   0.32,-106.67)  291.44                80
 07/23/2021   08:14:25   (  -0.25,-104.11) (  -0.66,-102.13)  224.75                80
 07/24/2021   20:33:44   (   0.28,-104.34) (  -0.41,-107.46)  355.96                80
 07/25/2021   20:17:40   (   0.27,-104.34) (   0.57,-102.92)  161.14                80
 07/27/2021   08:39:29   (  -0.30,-104.12) (   0.58,-108.20)  464.19                80
 07/28/2021   08:20:45   (  -0.28,-104.12) (  -0.40,-103.67)   52.54                80