Simultaneous Nadir Overpasses (SNOs) between GOES-15 and NPP
TLE Epoch: 2015 5 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)
 05/03/2015   10:16:45   (   0.06,-135.45) (  -0.68,-132.08)  384.19                80
 05/04/2015   22:38:41   (  -0.06,-135.42) (  -0.52,-137.38)  224.24                80
 05/05/2015   22:22:37   (  -0.06,-135.42) (   0.49,-132.86)  292.05                80
 05/07/2015   10:41:45   (   0.05,-135.46) (   0.68,-138.14)  305.81                80
 05/08/2015   10:25:40   (   0.06,-135.45) (  -0.34,-133.61)  209.95                80
 05/09/2015   22:44:57   (  -0.05,-135.41) (  -0.85,-138.92)  400.06                80
 05/10/2015   22:28:52   (  -0.06,-135.41) (   0.16,-134.39)  115.38                80
 05/12/2015   10:48:00   (   0.05,-135.43) (   1.00,-139.67)  483.49                80
 05/13/2015   10:31:56   (   0.06,-135.42) (  -0.02,-135.15)   31.66                80
 05/15/2015   22:32:27   (  -0.05,-135.35) (  -0.21,-135.92)   64.80                80