Simultaneous Nadir Overpasses (SNOs) between GOES-17 and NPP
TLE Epoch: 2020 10 11.  Predictions up to the next  14.0 days:

     Date     Time(GOES-17)   GOES-17 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 10/11/2020   10:37:13   (   0.03,-137.18) (   0.27,-138.30)  127.23                80
 10/12/2020   10:21:08   (   0.03,-137.18) (  -0.72,-133.77)  388.22                80
 10/13/2020   22:40:23   (  -0.03,-137.16) (  -0.48,-139.07)  217.72                80
 10/14/2020   22:24:18   (  -0.03,-137.15) (   0.57,-134.55)  297.57                80
 10/16/2020   10:43:26   (   0.02,-137.13) (   0.61,-139.82)  305.62                80
 10/17/2020   10:27:20   (   0.03,-137.12) (  -0.38,-135.28)  209.27                80
 10/18/2020   22:46:36   (  -0.02,-137.09) (  -0.82,-140.58)  397.79                80
 10/19/2020   22:30:30   (  -0.03,-137.08) (   0.17,-136.05)  116.65                80
 10/21/2020   10:49:37   (   0.02,-137.04) (   1.00,-141.32)  487.97                80
 10/22/2020   10:33:33   (   0.02,-137.02) (  -0.05,-136.79)   25.99                80
 10/24/2020   22:34:03   (  -0.01,-136.96) (  -0.15,-137.56)   68.74                80