Simultaneous Nadir Overpasses (SNOs) between GOES-15 and NPP
TLE Epoch: 2014 12 25.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 12/26/2014   10:22:27   (  -0.08,-135.34) (  -0.78,-132.28)  349.25                80
 12/27/2014   22:41:40   (   0.10,-135.28) (  -0.44,-137.57)  262.21                80
 12/28/2014   22:25:34   (   0.09,-135.26) (   0.57,-133.04)  252.97                80
 12/30/2014   10:44:40   (  -0.10,-135.27) (   0.55,-138.32)  346.31                80
 12/31/2014   10:28:33   (  -0.09,-135.25) (  -0.40,-133.77)  168.41                80
 01/01/2015   22:47:47   (   0.10,-135.18) (  -0.75,-139.08)  444.30                80
 01/02/2015   22:31:41   (   0.09,-135.15) (   0.26,-134.54)   70.35                80
 01/05/2015   10:31:58   (  -0.09,-135.14) (  -0.04,-135.27)   15.32                80
 01/06/2015   10:15:52   (  -0.08,-135.11) (  -1.06,-130.73)  498.76                80
 01/07/2015   22:35:05   (   0.09,-135.02) (  -0.15,-136.03)  114.97                80