Simultaneous Nadir Overpasses (SNOs) between GOES-17 and NPP
TLE Epoch: 2023 1 13.  Predictions up to the next  14.0 days:

     Date     Time(GOES-17)   GOES-17 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 01/13/2023   22:31:56   (  -0.00,-137.30) (   0.30,-136.08)  139.84                80
 01/15/2023   10:53:44   (   0.00,-137.28) (   0.92,-141.34)  462.51                80
 01/16/2023   10:32:21   (   0.00,-137.27) (  -0.12,-136.81)   52.33                80
 01/18/2023   22:35:33   (  -0.00,-137.22) (  -0.10,-137.58)   40.76                80
 01/19/2023   22:19:30   (  -0.01,-137.20) (   0.94,-133.05)  473.30                80
 01/21/2023   10:41:18   (   0.01,-137.16) (   0.26,-138.32)  131.08                80
 01/22/2023   10:19:54   (   0.01,-137.14) (  -0.73,-133.78)  382.55                80
 01/23/2023   22:41:51   (  -0.01,-137.10) (  -0.46,-139.08)  226.09                80
 01/24/2023   22:25:47   (  -0.01,-137.07) (   0.54,-134.55)  287.52                80
 01/26/2023   10:47:35   (   0.01,-137.03) (   0.66,-139.81)  317.11                80