Simultaneous Nadir Overpasses (SNOs) between GOES-17 and NPP
TLE Epoch: 2020 11 3.  Predictions up to the next  14.0 days:

     Date     Time(GOES-17)   GOES-17 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 11/03/2020   22:46:28   (  -0.02,-137.21) (  -0.76,-140.59)  384.21                80
 11/04/2020   22:30:23   (  -0.02,-137.21) (   0.24,-136.05)  132.01                80
 11/06/2020   10:49:30   (   0.02,-137.20) (   0.92,-141.33)  469.27                80
 11/07/2020   10:33:25   (   0.02,-137.20) (  -0.08,-136.79)   46.38                80
 11/09/2020   22:33:54   (  -0.01,-137.17) (  -0.11,-137.56)   44.64                80
 11/10/2020   22:17:49   (  -0.01,-137.16) (   0.89,-133.02)  470.68                80
 11/12/2020   10:36:56   (   0.01,-137.14) (   0.27,-138.30)  131.72                80
 11/13/2020   10:20:51   (   0.01,-137.13) (  -0.73,-133.76)  383.19                80
 11/14/2020   22:40:06   (  -0.01,-137.10) (  -0.45,-139.06)  224.47                80
 11/15/2020   22:24:01   (  -0.01,-137.08) (   0.55,-134.53)  289.97                80