Simultaneous Nadir Overpasses (SNOs) between GOES-17 and NPP
TLE Epoch: 2019 10 25.  Predictions up to the next  14.0 days:

     Date     Time(GOES-17)   GOES-17 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 10/26/2019   10:18:37   (  -0.00,-137.20) (  -0.75,-133.81)  386.62                80
 10/27/2019   22:40:33   (   0.00,-137.20) (  -0.40,-139.12)  218.37                80
 10/28/2019   22:24:27   (  -0.00,-137.19) (   0.58,-134.58)  297.50                80
 10/30/2019   10:43:35   (   0.00,-137.18) (   0.60,-139.85)  304.53                80
 10/31/2019   10:27:29   (   0.00,-137.17) (  -0.38,-135.32)  210.91                80
 11/01/2019   22:46:46   (   0.00,-137.16) (  -0.77,-140.63)  395.41                80
 11/02/2019   22:30:40   (   0.01,-137.15) (   0.22,-136.09)  119.61                80
 11/04/2019   10:49:48   (  -0.02,-137.12) (   0.90,-141.37)  483.63                80
 11/05/2019   10:33:43   (  -0.02,-137.11) (  -0.08,-136.84)   31.18                80
 11/07/2019   22:34:14   (   0.03,-137.07) (  -0.08,-137.61)   61.20                80