Simultaneous Nadir Overpasses (SNOs) between GOES-15 and NPP
TLE Epoch: 2016 1 26.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 01/26/2016   22:29:31   (   0.08,-135.12) (  -0.10,-136.00)  100.37                80
 01/27/2016   22:13:25   (   0.08,-135.14) (   0.93,-131.47)  418.97                80
 01/29/2016   10:35:11   (  -0.08,-135.23) (   0.24,-136.74)  171.84                80
 01/30/2016   10:13:45   (  -0.08,-135.25) (  -0.73,-132.20)  347.10                80
 01/31/2016   22:35:40   (   0.07,-135.23) (  -0.43,-137.51)  259.82                80
 02/01/2016   22:19:35   (   0.07,-135.24) (   0.59,-132.97)  258.79                80
 02/03/2016   10:41:21   (  -0.07,-135.32) (   0.57,-138.24)  333.01                80
 02/04/2016   10:19:55   (  -0.07,-135.33) (  -0.40,-133.70)  185.10                80
 02/05/2016   22:44:30   (   0.06,-135.29) (  -0.76,-139.01)  423.27                80
 02/06/2016   22:25:44   (   0.06,-135.30) (   0.27,-134.48)   94.45                80
 02/08/2016   10:47:30   (  -0.06,-135.36) (   0.94,-139.74)  498.60                80