Simultaneous Nadir Overpasses (SNOs) between GOES-17 and NPP
TLE Epoch: 2020 10 9.  Predictions up to the next  14.0 days:

     Date     Time(GOES-17)   GOES-17 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 10/09/2020   22:18:06   (  -0.04,-137.20) (   0.89,-133.03)  474.79                80
 10/11/2020   10:37:13   (   0.03,-137.18) (   0.28,-138.30)  127.72                80
 10/12/2020   10:21:07   (   0.03,-137.17) (  -0.70,-133.77)  387.55                80
 10/13/2020   22:40:24   (  -0.02,-137.16) (  -0.44,-139.08)  218.82                80
 10/14/2020   22:24:18   (  -0.02,-137.14) (   0.55,-134.54)  296.29                80
 10/16/2020   10:43:25   (   0.02,-137.12) (   0.62,-139.81)  306.94                80
 10/17/2020   10:27:20   (   0.02,-137.11) (  -0.37,-135.28)  207.79                80
 10/18/2020   22:46:35   (  -0.02,-137.08) (  -0.83,-140.58)  399.71                80
 10/19/2020   22:30:31   (  -0.02,-137.06) (   0.22,-136.06)  114.56                80
 10/21/2020   10:49:38   (   0.02,-137.02) (   0.95,-141.33)  490.08                80
 10/22/2020   10:33:33   (   0.02,-137.00) (  -0.04,-136.79)   23.67                80