Simultaneous Nadir Overpasses (SNOs) between GOES-15 and NPP
TLE Epoch: 2016 1 17.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 01/18/2016   10:38:56   (  -0.09,-134.93) (   0.66,-138.26)  378.63                80
 01/19/2016   10:22:51   (  -0.08,-134.97) (  -0.36,-133.72)  141.91                80
 01/20/2016   22:42:05   (   0.08,-134.96) (  -0.85,-139.02)  463.47                80
 01/21/2016   22:25:59   (   0.08,-134.99) (   0.17,-134.49)   56.88                80
 01/24/2016   10:29:01   (  -0.08,-135.13) (  -0.07,-135.24)   11.78                80
 01/26/2016   22:29:30   (   0.08,-135.14) (  -0.12,-136.00)   97.72                80
 01/27/2016   22:13:25   (   0.07,-135.17) (   0.91,-131.47)  422.07                80
 01/29/2016   10:35:11   (  -0.08,-135.28) (   0.26,-136.74)  166.97                80
 01/30/2016   10:13:46   (  -0.07,-135.30) (  -0.77,-132.21)  352.51                80