Simultaneous Nadir Overpasses (SNOs) between GOES-14 and NPP
TLE Epoch: 2018 12 16.  Predictions up to the next  14.0 days:

     Date     Time(GOES-14)   GOES-14 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 12/17/2018   08:05:34   (   0.01,-104.23) (  -0.79,-100.58)  415.09                80
 12/18/2018   20:27:30   (   0.01,-104.03) (  -0.40,-105.89)  212.16                80
 12/19/2018   20:11:25   (  -0.00,-104.03) (   0.58,-101.35)  305.11                80
 12/21/2018   08:33:13   (  -0.01,-104.25) (   0.55,-106.63)  272.09                80
 12/22/2018   08:11:49   (  -0.00,-104.24) (  -0.48,-102.11)  243.92                80
 12/23/2018   20:33:44   (   0.02,-104.02) (  -0.75,-107.40)  385.71                80
 12/24/2018   20:17:40   (   0.01,-104.02) (   0.28,-102.87)  131.07                80
 12/26/2018   08:39:28   (  -0.02,-104.25) (   0.84,-108.15)  444.83                80
 12/27/2018   08:18:02   (  -0.01,-104.24) (  -0.13,-103.62)   71.21                80
 12/29/2018   20:21:13   (   0.02,-104.01) (  -0.06,-104.38)   42.57                80