Simultaneous Nadir Overpasses (SNOs) between GOES-14 and NPP
TLE Epoch: 2018 12 7.  Predictions up to the next  14.0 days:

     Date     Time(GOES-14)   GOES-14 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 12/08/2018   20:17:41   (  -0.03,-104.03) (   0.24,-102.85)  133.77                80
 12/10/2018   08:39:30   (   0.00,-104.22) (   0.89,-108.14)  446.19                80
 12/11/2018   08:18:05   (   0.02,-104.22) (  -0.14,-103.61)   69.90                80
 12/13/2018   20:21:16   (  -0.01,-104.03) (  -0.08,-104.37)   39.58                80
 12/14/2018   20:05:12   (  -0.01,-104.03) (   0.95, -99.85)  477.73                80
 12/16/2018   08:27:00   (  -0.01,-104.24) (   0.18,-105.13)  101.08                80
 12/17/2018   08:05:34   (   0.01,-104.23) (  -0.79,-100.59)  415.18                80
 12/18/2018   20:27:31   (   0.01,-104.03) (  -0.38,-105.90)  212.22                80
 12/19/2018   20:11:25   (   0.00,-104.03) (   0.59,-101.36)  304.98                80
 12/21/2018   08:33:14   (  -0.01,-104.25) (   0.54,-106.64)  272.30                80