Simultaneous Nadir Overpasses (SNOs) between GOES-17 and NPP
TLE Epoch: 2022 4 21.  Predictions up to the next  14.0 days:

     Date     Time(GOES-17)   GOES-17 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 04/21/2022   22:36:48   (   0.03,-137.17) (  -0.05,-137.55)   43.20                80
 04/22/2022   22:15:23   (   0.03,-137.17) (   0.94,-133.02)  472.69                80
 04/24/2022   10:39:50   (  -0.02,-137.15) (   0.21,-138.29)  128.52                80
 04/25/2022   10:18:24   (  -0.02,-137.15) (  -0.79,-133.75)  387.24                80
 04/26/2022   22:43:00   (   0.02,-137.13) (  -0.41,-139.05)  218.23                80
 04/27/2022   22:24:14   (   0.02,-137.12) (   0.59,-134.51)  297.50                80
 04/29/2022   10:46:00   (  -0.02,-137.11) (   0.61,-139.77)  303.99                80
 04/30/2022   10:24:36   (  -0.02,-137.10) (  -0.45,-135.25)  211.37                80
 05/01/2022   22:46:31   (   0.02,-137.07) (  -0.73,-140.55)  395.13                80
 05/02/2022   22:30:26   (   0.02,-137.06) (   0.27,-136.01)  119.90                80
 05/04/2022   10:52:12   (  -0.01,-137.03) (   0.93,-141.27)  482.77                80