Simultaneous Nadir Overpasses (SNOs) between GOES-17 and NPP
TLE Epoch: 2020 10 12.  Predictions up to the next  14.0 days:

     Date     Time(GOES-17)   GOES-17 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 10/12/2020   10:21:08   (   0.03,-137.20) (  -0.75,-133.77)  390.86                80
 10/13/2020   22:40:23   (  -0.03,-137.20) (  -0.45,-139.08)  213.37                80
 10/14/2020   22:24:18   (  -0.03,-137.21) (   0.54,-134.54)  303.29                80
 10/16/2020   10:43:25   (   0.02,-137.21) (   0.64,-139.81)  297.41                80
 10/17/2020   10:27:21   (   0.03,-137.21) (  -0.41,-135.29)  218.87                80
 10/18/2020   22:46:36   (  -0.03,-137.20) (  -0.78,-140.59)  386.49                80
 10/19/2020   22:30:31   (  -0.03,-137.19) (   0.21,-136.05)  129.30                80
 10/21/2020   10:49:38   (   0.02,-137.18) (   0.97,-141.32)  472.82                80
 10/22/2020   10:33:33   (   0.02,-137.17) (  -0.08,-136.80)   42.49                80
 10/24/2020   22:34:03   (  -0.01,-137.14) (  -0.12,-137.57)   49.13                80
 10/25/2020   22:17:59   (  -0.01,-137.13) (   0.93,-133.05)  465.99                80