Simultaneous Nadir Overpasses (SNOs) between GOES-14 and NPP
TLE Epoch: 2018 12 15.  Predictions up to the next  14.0 days:

     Date     Time(GOES-14)   GOES-14 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 12/16/2018   08:26:59   (  -0.00,-104.23) (   0.20,-105.12)  101.17                80
 12/17/2018   08:05:35   (   0.01,-104.23) (  -0.83,-100.59)  415.06                80
 12/18/2018   20:27:30   (   0.01,-104.03) (  -0.42,-105.89)  212.32                80
 12/19/2018   20:11:26   (  -0.00,-104.03) (   0.62,-101.36)  304.89                80
 12/21/2018   08:33:14   (  -0.01,-104.25) (   0.51,-106.64)  272.31                80
 12/22/2018   08:11:48   (  -0.00,-104.24) (  -0.46,-102.10)  243.65                80
 12/23/2018   20:33:44   (   0.02,-104.01) (  -0.77,-107.40)  386.11                80
 12/24/2018   20:17:39   (   0.01,-104.02) (   0.26,-102.87)  130.62                80
 12/26/2018   08:39:28   (  -0.02,-104.25) (   0.87,-108.15)  445.32                80
 12/27/2018   08:18:03   (  -0.01,-104.24) (  -0.17,-103.62)   70.66                80