Simultaneous Nadir Overpasses (SNOs) between GOES-17 and NPP
TLE Epoch: 2023 1 9.  Predictions up to the next  14.0 days:

     Date     Time(GOES-17)   GOES-17 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 01/10/2023   10:47:25   (   0.01,-137.32) (   0.57,-139.83)  285.62                80
 01/11/2023   10:26:02   (   0.01,-137.32) (  -0.46,-135.30)  230.01                80
 01/12/2023   22:47:59   (  -0.01,-137.30) (  -0.76,-140.60)  375.83                80
 01/13/2023   22:31:56   (  -0.01,-137.30) (   0.28,-136.07)  139.55                80
 01/15/2023   10:53:44   (   0.01,-137.28) (   0.94,-141.34)  462.56                80
 01/16/2023   10:32:20   (   0.01,-137.27) (  -0.10,-136.81)   52.19                80
 01/18/2023   22:35:33   (  -0.02,-137.22) (  -0.13,-137.57)   41.33                80
 01/19/2023   22:19:30   (  -0.02,-137.19) (   0.91,-133.05)  472.74                80
 01/21/2023   10:41:18   (   0.02,-137.16) (   0.30,-138.31)  131.50                80
 01/22/2023   10:19:55   (   0.02,-137.13) (  -0.75,-133.79)  381.98                80