Simultaneous Nadir Overpasses (SNOs) between GOES-14 and NPP
TLE Epoch: 2018 9 24.  Predictions up to the next  14.0 days:

     Date     Time(GOES-14)   GOES-14 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 09/24/2018   20:21:15   (  -0.32,-104.17) (  -0.32,-104.19)    2.62                80
 09/27/2018   08:26:59   (   0.31,-104.11) (   0.52,-104.92)   93.54                80
 09/28/2018   08:05:34   (   0.32,-104.10) (  -0.48,-100.39)  421.82                80
 09/29/2018   20:27:31   (  -0.30,-104.14) (  -0.67,-105.70)  178.02                80
 09/30/2018   20:11:28   (  -0.31,-104.15) (   0.38,-101.18)  338.78                80
 10/02/2018   08:33:16   (   0.28,-104.10) (   0.81,-106.45)  267.08                80
 10/03/2018   08:11:52   (   0.29,-104.09) (  -0.19,-101.91)  247.79                80
 10/04/2018   20:33:49   (  -0.27,-104.10) (  -0.96,-107.22)  355.68                80
 10/05/2018   20:17:45   (  -0.28,-104.10) (   0.04,-102.69)  161.06                80
 10/07/2018   08:39:34   (   0.25,-104.09) (   1.10,-107.97)  441.37                80
 10/08/2018   08:18:09   (   0.27,-104.08) (   0.10,-103.43)   73.97                80