Simultaneous Nadir Overpasses (SNOs) between GOES-15 and NPP
TLE Epoch: 2016 10 11.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 10/11/2016   10:31:16   (   0.22,-135.08) (   0.54,-136.66)  179.61                80
 10/12/2016   10:15:11   (   0.23,-135.05) (  -0.40,-132.12)  332.90                80
 10/13/2016   22:34:28   (  -0.20,-134.96) (  -0.76,-137.44)  282.23                80
 10/14/2016   22:18:24   (  -0.21,-134.93) (   0.25,-132.91)  230.28                80
 10/16/2016   10:37:32   (   0.19,-134.90) (   0.91,-138.19)  374.06                80
 10/17/2016   10:21:28   (   0.20,-134.86) (  -0.09,-133.66)  137.70                80
 10/18/2016   22:40:44   (  -0.18,-134.75) (  -1.13,-138.96)  479.57                80
 10/19/2016   22:24:40   (  -0.19,-134.71) (  -0.12,-134.43)   32.00                80
 10/22/2016   10:25:03   (   0.18,-134.63) (   0.27,-135.18)   62.09                80
 10/23/2016   10:08:58   (   0.19,-134.58) (  -0.68,-130.64)  448.84                80
 10/24/2016   22:28:15   (  -0.16,-134.46) (  -0.49,-135.95)  169.76                80