Simultaneous Nadir Overpasses (SNOs) between GOES-14 and NPP
TLE Epoch: 2018 12 23.  Predictions up to the next  14.0 days:

     Date     Time(GOES-14)   GOES-14 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 12/24/2018   20:17:40   (   0.01,-104.04) (   0.29,-102.87)  133.35                80
 12/26/2018   08:39:28   (  -0.02,-104.27) (   0.83,-108.16)  442.81                80
 12/27/2018   08:18:03   (  -0.01,-104.26) (  -0.14,-103.62)   73.53                80
 12/29/2018   20:21:13   (   0.02,-104.05) (  -0.05,-104.38)   38.48                80
 12/30/2018   20:05:09   (   0.01,-104.06) (   0.98, -99.86)  479.01                80
 01/01/2019   08:26:57   (  -0.02,-104.30) (   0.15,-105.14)   95.81                80
 01/02/2019   08:05:32   (  -0.01,-104.30) (  -0.83,-100.60)  420.90                80
 01/03/2019   20:27:27   (   0.02,-104.07) (  -0.39,-105.90)  208.72                80
 01/04/2019   20:11:23   (   0.02,-104.07) (   0.65,-101.37)  308.78                80
 01/06/2019   08:33:11   (  -0.02,-104.33) (   0.49,-106.65)  264.66                80