Simultaneous Nadir Overpasses (SNOs) between GOES-14 and NPP
TLE Epoch: 2019 4 20.  Predictions up to the next  14.0 days:

     Date     Time(GOES-14)   GOES-14 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 04/20/2019   20:20:29   (  -0.12,-104.37) (  -0.08,-104.23)   16.40                80
 04/23/2019   08:23:33   (   0.12,-104.39) (   0.28,-104.97)   66.62                80
 04/24/2019   08:07:30   (   0.13,-104.40) (  -0.77,-100.45)  450.41                80
 04/25/2019   20:29:27   (  -0.12,-104.39) (  -0.41,-105.75)  155.09                80
 04/26/2019   20:08:02   (  -0.13,-104.39) (   0.59,-101.22)  360.98                80
 04/28/2019   08:29:51   (   0.12,-104.39) (   0.59,-106.49)  239.43                80
 04/29/2019   08:13:46   (   0.13,-104.40) (  -0.40,-101.96)  277.83                80
 04/30/2019   20:35:44   (  -0.12,-104.42) (  -0.76,-107.27)  325.39                80
 05/01/2019   20:14:19   (  -0.12,-104.42) (   0.24,-102.74)  190.93                80
 05/03/2019   08:36:07   (   0.11,-104.41) (   0.93,-108.01)  411.24                80