Simultaneous Nadir Overpasses (SNOs) between GOES-14 and NPP
TLE Epoch: 2019 5 10.  Predictions up to the next  14.0 days:

     Date     Time(GOES-14)   GOES-14 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 05/11/2019   20:29:38   (  -0.10,-104.44) (  -0.38,-105.79)  154.06                80
 05/12/2019   20:08:13   (  -0.11,-104.44) (   0.61,-101.26)  362.12                80
 05/14/2019   08:30:02   (   0.09,-104.39) (   0.59,-106.53)  244.35                80
 05/15/2019   08:13:58   (   0.10,-104.39) (  -0.46,-102.01)  272.93                80
 05/16/2019   20:35:55   (  -0.08,-104.46) (  -0.71,-107.31)  324.82                80
 05/17/2019   20:14:31   (  -0.09,-104.46) (   0.28,-102.78)  191.55                80
 05/19/2019   08:36:20   (   0.07,-104.40) (   0.86,-108.06)  416.62                80
 05/20/2019   08:20:16   (   0.08,-104.41) (  -0.13,-103.53)  100.67                80
 05/21/2019   20:42:13   (  -0.05,-104.49) (  -1.03,-108.84)  495.39                80
 05/22/2019   20:20:49   (  -0.07,-104.49) (  -0.04,-104.30)   21.15                80