Simultaneous Nadir Overpasses (SNOs) between GOES-14 and NPP
TLE Epoch: 2018 12 22.  Predictions up to the next  14.0 days:

     Date     Time(GOES-14)   GOES-14 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 12/22/2018   08:11:49   (   0.00,-104.25) (  -0.50,-102.11)  244.38                80
 12/23/2018   20:33:44   (   0.01,-104.03) (  -0.74,-107.40)  384.30                80
 12/24/2018   20:17:40   (   0.01,-104.04) (   0.29,-102.88)  132.77                80
 12/26/2018   08:39:28   (  -0.02,-104.27) (   0.84,-108.16)  443.25                80
 12/27/2018   08:18:03   (  -0.01,-104.26) (  -0.14,-103.62)   73.00                80
 12/29/2018   20:21:14   (   0.02,-104.04) (  -0.05,-104.39)   39.62                80
 12/30/2018   20:05:08   (   0.01,-104.05) (   0.93, -99.85)  477.77                80
 01/01/2019   08:26:57   (  -0.02,-104.29) (   0.15,-105.14)   96.92                80
 01/02/2019   08:05:32   (  -0.01,-104.29) (  -0.83,-100.60)  419.70                80
 01/03/2019   20:27:27   (   0.02,-104.06) (  -0.39,-105.90)  210.37                80
 01/04/2019   20:11:22   (   0.02,-104.06) (   0.59,-101.36)  307.04                80