Simultaneous Nadir Overpasses (SNOs) between GOES-17 and NPP
TLE Epoch: 2020 2 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)
 02/24/2020   10:51:50   (   0.02,-137.21) (   0.92,-141.32)  467.73                80
 02/25/2020   10:30:26   (   0.02,-137.20) (  -0.09,-136.78)   48.03                80
 02/27/2020   22:33:37   (  -0.02,-137.19) (  -0.12,-137.55)   41.58                80
 02/28/2020   22:17:33   (  -0.02,-137.18) (   0.89,-133.02)  473.81                80
 03/01/2020   10:39:21   (   0.02,-137.16) (   0.29,-138.29)  129.42                80
 03/02/2020   10:17:57   (   0.03,-137.15) (  -0.71,-133.76)  385.37                80
 03/03/2020   22:39:54   (  -0.03,-137.13) (  -0.44,-139.07)  221.48                80
 03/04/2020   22:23:50   (  -0.03,-137.11) (   0.57,-134.54)  292.83                80
 03/06/2020   10:42:57   (   0.03,-137.07) (   0.66,-139.80)  312.02                80
 03/07/2020   10:26:52   (   0.03,-137.05) (  -0.34,-135.27)  201.74                80
 03/08/2020   22:46:10   (  -0.03,-137.01) (  -0.80,-140.59)  406.59                80