Simultaneous Nadir Overpasses (SNOs) between GOES-17 and NPP
TLE Epoch: 2020 3 28.  Predictions up to the next  14.0 days:

     Date     Time(GOES-17)   GOES-17 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 03/30/2020   22:33:46   (   0.03,-137.20) (  -0.03,-137.60)   44.94                80
 03/31/2020   22:17:40   (   0.02,-137.19) (   0.92,-133.06)  470.62                80
 04/02/2020   10:39:28   (  -0.02,-137.18) (   0.22,-138.33)  130.70                80
 04/03/2020   10:18:04   (  -0.01,-137.17) (  -0.79,-133.80)  384.22                80
 04/04/2020   22:40:00   (   0.01,-137.14) (  -0.41,-139.10)  223.81                80
 04/05/2020   22:23:56   (   0.01,-137.12) (   0.60,-134.57)  290.93                80
 04/07/2020   10:45:43   (  -0.00,-137.10) (   0.60,-139.84)  311.19                80
 04/08/2020   10:24:19   (  -0.01,-137.08) (  -0.42,-135.31)  203.00                80
 04/09/2020   22:46:15   (   0.01,-137.04) (  -0.78,-140.61)  406.43                80
 04/10/2020   22:30:10   (   0.01,-137.02) (   0.23,-136.08)  107.48                80