Simultaneous Nadir Overpasses (SNOs) between GOES-14 and NPP
TLE Epoch: 2021 9 25.  Predictions up to the next  14.0 days:

     Date     Time(GOES-14)   GOES-14 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 09/25/2021   08:12:08   (   0.35,-104.20) (  -0.11,-102.06)  243.90                80
 09/26/2021   20:34:05   (  -0.34,-104.23) (  -1.05,-107.37)  357.15                80
 09/27/2021   20:18:01   (  -0.34,-104.24) (  -0.04,-102.83)  160.31                80
 09/29/2021   08:39:49   (   0.32,-104.23) (   1.21,-108.10)  442.16                80
 09/30/2021   08:18:24   (   0.33,-104.21) (   0.20,-103.57)   72.79                80
 10/02/2021   20:21:37   (  -0.31,-104.22) (  -0.35,-104.35)   15.27                80
 10/05/2021   08:27:21   (   0.30,-104.23) (   0.51,-105.09)   98.29                80
 10/06/2021   08:05:57   (   0.31,-104.21) (  -0.49,-100.55)  416.94                80
 10/07/2021   20:27:54   (  -0.29,-104.19) (  -0.65,-105.87)  190.32                80
 10/08/2021   20:11:49   (  -0.30,-104.20) (   0.36,-101.33)  327.21                80