Simultaneous Nadir Overpasses (SNOs) between GOES-14 and NPP
TLE Epoch: 2018 12 4.  Predictions up to the next  14.0 days:

     Date     Time(GOES-14)   GOES-14 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 12/05/2018   08:33:15   (   0.02,-104.21) (   0.57,-106.62)  274.74                80
 12/06/2018   08:11:50   (   0.03,-104.20) (  -0.45,-102.09)  241.38                80
 12/07/2018   20:33:47   (  -0.01,-104.02) (  -0.74,-107.39)  383.26                80
 12/08/2018   20:17:41   (  -0.02,-104.03) (   0.23,-102.85)  134.09                80
 12/10/2018   08:39:29   (   0.00,-104.23) (   0.90,-108.13)  445.70                80
 12/11/2018   08:18:05   (   0.02,-104.22) (  -0.13,-103.61)   70.49                80
 12/13/2018   20:21:16   (  -0.01,-104.04) (  -0.09,-104.37)   38.58                80
 12/14/2018   20:05:11   (  -0.01,-104.04) (   0.94, -99.85)  478.87                80
 12/16/2018   08:27:00   (  -0.01,-104.25) (   0.19,-105.13)   99.76                80
 12/17/2018   08:05:35   (   0.01,-104.25) (  -0.84,-100.60)  416.62                80