Simultaneous Nadir Overpasses (SNOs) between GOES-15 and NPP
TLE Epoch: 2015 1 16.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 01/17/2015   22:47:15   (   0.10,-134.65) (  -0.85,-139.01)  496.18                80
 01/18/2015   22:31:07   (   0.09,-134.60) (   0.12,-134.46)   15.74                80
 01/21/2015   10:34:05   (  -0.09,-134.51) (   0.04,-135.19)   77.07                80
 01/22/2015   10:12:38   (  -0.09,-134.46) (  -0.93,-130.65)  434.12                80
 01/23/2015   22:34:31   (   0.10,-134.34) (  -0.25,-135.95)  183.15                80
 01/24/2015   22:18:23   (   0.09,-134.28) (   0.72,-131.40)  327.98                80
 01/26/2015   10:40:08   (  -0.09,-134.24) (   0.46,-136.67)  276.80                80
 01/27/2015   10:18:40   (  -0.09,-134.18) (  -0.52,-132.12)  233.89                80
 01/28/2015   22:40:33   (   0.09,-134.05) (  -0.66,-137.42)  384.59                80
 01/29/2015   22:24:26   (   0.09,-133.99) (   0.32,-132.88)  125.99                80