Simultaneous Nadir Overpasses (SNOs) between GOES-14 and NPP
TLE Epoch: 2018 7 25.  Predictions up to the next  14.0 days:

     Date     Time(GOES-14)   GOES-14 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 07/26/2018   08:07:47   (  -0.24,-104.40) (  -1.11,-100.46)  448.70                80
 07/27/2018   20:27:06   (   0.27,-104.56) (   0.01,-105.79)  139.07                80
 07/28/2018   20:11:02   (   0.26,-104.57) (   0.99,-101.25)  378.17                80
 07/30/2018   08:30:10   (  -0.28,-104.43) (   0.20,-106.52)  238.87                80
 07/31/2018   08:14:07   (  -0.27,-104.43) (  -0.84,-102.00)  278.15                80
 08/01/2018   20:33:25   (   0.30,-104.59) (  -0.31,-107.31)  309.96                80
 08/02/2018   20:17:21   (   0.29,-104.60) (   0.67,-102.78)  207.43                80
 08/04/2018   08:36:30   (  -0.31,-104.46) (   0.47,-108.06)  408.97                80
 08/05/2018   08:20:25   (  -0.30,-104.47) (  -0.51,-103.52)  107.76                80
 08/06/2018   20:39:44   (   0.33,-104.61) (  -0.63,-108.84)  481.64                80
 08/07/2018   20:23:40   (   0.32,-104.62) (   0.41,-104.31)   35.31                80