Simultaneous Nadir Overpasses (SNOs) between GOES-14 and NPP
TLE Epoch: 2020 9 17.  Predictions up to the next  14.0 days:

     Date     Time(GOES-14)   GOES-14 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 09/18/2020   20:27:13   (  -0.34,-104.47) (  -0.64,-105.72)  142.75                80
 09/19/2020   20:11:08   (  -0.35,-104.48) (   0.37,-101.19)  374.55                80
 09/21/2020   08:32:57   (   0.33,-104.41) (   0.80,-106.46)  233.59                80
 09/22/2020   08:11:32   (   0.34,-104.40) (  -0.20,-101.92)  281.56                80
 09/23/2020   20:33:30   (  -0.32,-104.44) (  -0.95,-107.23)  318.54                80
 09/24/2020   20:17:25   (  -0.32,-104.45) (   0.06,-102.70)  198.52                80
 09/26/2020   08:39:13   (   0.30,-104.41) (   1.11,-107.97)  406.30                80
 09/27/2020   08:17:49   (   0.31,-104.40) (   0.10,-103.44)  108.97                80
 09/28/2020   20:39:46   (  -0.28,-104.41) (  -1.25,-108.75)  494.29                80
 09/29/2020   20:23:42   (  -0.29,-104.42) (  -0.23,-104.22)   23.31                80