Simultaneous Nadir Overpasses (SNOs) between GOES-14 and NPP
TLE Epoch: 2019 4 18.  Predictions up to the next  14.0 days:

     Date     Time(GOES-14)   GOES-14 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 04/19/2019   20:41:53   (  -0.12,-104.38) (  -1.11,-108.76)  499.54                80
 04/20/2019   20:20:29   (  -0.12,-104.37) (  -0.07,-104.23)   16.47                80
 04/23/2019   08:23:34   (   0.12,-104.39) (   0.23,-104.98)   66.27                80
 04/24/2019   08:07:30   (   0.13,-104.40) (  -0.76,-100.44)  450.75                80
 04/25/2019   20:29:27   (  -0.12,-104.39) (  -0.44,-105.75)  155.02                80
 04/26/2019   20:08:04   (  -0.13,-104.39) (   0.60,-101.23)  361.05                80
 04/28/2019   08:29:52   (   0.12,-104.40) (   0.60,-106.50)  239.15                80
 04/29/2019   08:13:48   (   0.13,-104.41) (  -0.45,-101.97)  278.09                80
 04/30/2019   20:35:46   (  -0.12,-104.42) (  -0.74,-107.28)  325.46                80
 05/01/2019   20:14:21   (  -0.12,-104.42) (   0.24,-102.75)  190.80                80