Simultaneous Nadir Overpasses (SNOs) between GOES-15 and NPP
TLE Epoch: 2018 2 2.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 02/03/2018   10:33:17   (  -0.03,-135.24) (   0.29,-136.72)  168.20                80
 02/04/2018   10:11:52   (  -0.03,-135.27) (  -0.72,-132.18)  351.25                80
 02/05/2018   22:36:27   (   0.03,-135.28) (  -0.46,-137.49)  251.51                80
 02/06/2018   22:15:02   (   0.03,-135.30) (   0.54,-132.95)  267.81                80
 02/08/2018   10:39:29   (  -0.02,-135.36) (   0.60,-138.22)  325.46                80
 02/09/2018   10:18:03   (  -0.01,-135.38) (  -0.41,-133.69)  193.55                80
 02/10/2018   22:42:38   (  -0.00,-135.38) (  -0.83,-138.98)  410.02                80
 02/11/2018   22:21:12   (  -0.01,-135.40) (   0.18,-134.44)  108.67                80
 02/13/2018   10:45:40   (   0.01,-135.45) (   0.96,-139.72)  485.75                80
 02/14/2018   10:24:14   (   0.01,-135.47) (  -0.05,-135.18)   32.39                80