Simultaneous Nadir Overpasses (SNOs) between GOES-15 and NPP
TLE Epoch: 2016 1 14.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 01/15/2016   22:35:54   (   0.09,-134.78) (  -0.54,-137.51)  311.67                80
 01/16/2016   22:19:49   (   0.09,-134.82) (   0.48,-132.98)  209.31                80
 01/18/2016   10:38:56   (  -0.09,-134.94) (   0.65,-138.26)  378.58                80
 01/19/2016   10:22:51   (  -0.08,-134.97) (  -0.37,-133.73)  141.99                80
 01/20/2016   22:42:05   (   0.08,-134.96) (  -0.85,-139.02)  463.18                80
 01/21/2016   22:26:00   (   0.08,-134.99) (   0.17,-134.49)   57.16                80
 01/24/2016   10:29:01   (  -0.08,-135.13) (  -0.07,-135.24)   11.63                80
 01/26/2016   22:29:30   (   0.08,-135.15) (  -0.12,-136.00)   97.40                80
 01/27/2016   22:13:25   (   0.07,-135.18) (   0.90,-131.47)  422.38                80