Simultaneous Nadir Overpasses (SNOs) between GOES-17 and NPP
TLE Epoch: 2023 1 14.  Predictions up to the next  14.0 days:

     Date     Time(GOES-17)   GOES-17 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 01/15/2023   10:53:45   (   0.00,-137.28) (   0.88,-141.35)  462.51                80
 01/16/2023   10:32:20   (   0.00,-137.27) (  -0.09,-136.81)   52.31                80
 01/18/2023   22:35:34   (  -0.00,-137.22) (  -0.07,-137.58)   40.73                80
 01/19/2023   22:19:29   (  -0.01,-137.20) (   0.92,-133.05)  473.35                80
 01/21/2023   10:41:18   (   0.01,-137.16) (   0.28,-138.31)  131.01                80
 01/22/2023   10:19:54   (   0.01,-137.14) (  -0.77,-133.79)  382.64                80
 01/23/2023   22:41:51   (  -0.01,-137.10) (  -0.47,-139.08)  225.99                80
 01/24/2023   22:25:47   (  -0.01,-137.07) (   0.58,-134.55)  287.65                80
 01/26/2023   10:47:35   (   0.01,-137.03) (   0.61,-139.82)  316.95                80
 01/27/2023   10:26:11   (   0.01,-137.01) (  -0.38,-135.28)  196.46                80