Simultaneous Nadir Overpasses (SNOs) between GOES-17 and NPP
TLE Epoch: 2023 1 5.  Predictions up to the next  14.0 days:

     Date     Time(GOES-17)   GOES-17 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 01/06/2023   10:19:42   (   0.01,-137.34) (  -0.78,-133.78)  405.29                80
 01/07/2023   22:41:40   (  -0.01,-137.33) (  -0.38,-139.09)  200.16                80
 01/08/2023   22:25:36   (  -0.01,-137.33) (   0.58,-134.55)  315.66                80
 01/10/2023   10:47:25   (   0.01,-137.32) (   0.58,-139.83)  285.46                80
 01/11/2023   10:26:02   (   0.01,-137.32) (  -0.44,-135.30)  229.96                80
 01/12/2023   22:47:59   (  -0.01,-137.30) (  -0.77,-140.60)  376.36                80
 01/13/2023   22:31:55   (  -0.00,-137.29) (   0.26,-136.07)  138.90                80
 01/15/2023   10:53:45   (   0.01,-137.28) (   0.91,-141.34)  462.94                80
 01/16/2023   10:32:21   (   0.00,-137.27) (  -0.13,-136.82)   51.84                80
 01/18/2023   22:35:34   (  -0.01,-137.21) (  -0.10,-137.58)   42.01                80