Simultaneous Nadir Overpasses (SNOs) between GOES-17 and NPP
TLE Epoch: 2020 10 24.  Predictions up to the next  14.0 days:

     Date     Time(GOES-17)   GOES-17 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 10/24/2020   22:34:03   (  -0.02,-137.20) (  -0.13,-137.56)   42.02                80
 10/25/2020   22:17:59   (  -0.02,-137.20) (   0.92,-133.04)  474.91                80
 10/27/2020   10:37:06   (   0.02,-137.22) (   0.25,-138.31)  124.22                80
 10/28/2020   10:21:00   (   0.02,-137.22) (  -0.75,-133.77)  392.49                80
 10/29/2020   22:40:16   (  -0.02,-137.21) (  -0.45,-139.08)  213.06                80
 10/30/2020   22:24:10   (  -0.02,-137.21) (   0.55,-134.54)  303.36                80
 11/01/2020   10:43:17   (   0.02,-137.21) (   0.61,-139.81)  296.73                80
 11/02/2020   10:27:12   (   0.02,-137.21) (  -0.38,-135.28)  219.22                80
 11/03/2020   22:46:27   (  -0.01,-137.18) (  -0.80,-140.58)  387.78                80
 11/04/2020   22:30:23   (  -0.01,-137.17) (   0.25,-136.06)  127.56                80
 11/06/2020   10:49:29   (   0.01,-137.16) (   0.97,-141.32)  474.24                80