Simultaneous Nadir Overpasses (SNOs) between GOES-17 and NPP
TLE Epoch: 2020 11 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)
 11/25/2020   22:33:45   (  -0.00,-137.23) (  -0.06,-137.55)   35.55                80
 11/26/2020   22:17:39   (  -0.01,-137.23) (   0.95,-133.01)  481.50                80
 11/28/2020   10:36:45   (   0.01,-137.24) (   0.24,-138.27)  117.77                80
 11/29/2020   10:20:40   (   0.01,-137.24) (  -0.76,-133.74)  398.75                80
 11/30/2020   22:39:55   (  -0.01,-137.23) (  -0.42,-139.04)  207.18                80
 12/01/2020   22:23:50   (  -0.01,-137.22) (   0.59,-134.51)  308.81                80
 12/03/2020   10:42:56   (   0.01,-137.21) (   0.60,-139.77)  292.02                80
 12/04/2020   10:26:51   (   0.01,-137.20) (  -0.41,-135.24)  223.43                80
 12/05/2020   22:46:06   (  -0.01,-137.17) (  -0.78,-140.54)  384.04                80
 12/06/2020   22:30:00   (  -0.01,-137.16) (   0.23,-136.01)  131.06                80
 12/08/2020   10:49:07   (   0.00,-137.14) (   0.95,-141.27)  470.82                80