Simultaneous Nadir Overpasses (SNOs) between GOES-15 and NPP
TLE Epoch: 2018 6 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)
 06/17/2018   10:20:45   (  -0.03,-134.67) (  -0.24,-133.61)  119.80                80
 06/18/2018   22:40:02   (   0.06,-134.75) (  -0.88,-138.93)  476.21                80
 06/19/2018   22:23:58   (   0.04,-134.80) (   0.15,-134.40)   45.59                80
 06/22/2018   10:24:21   (  -0.05,-134.90) (   0.01,-135.14)   27.48                80
 06/23/2018   10:08:16   (  -0.04,-134.94) (  -1.02,-130.61)  493.99                80
 06/24/2018   22:27:33   (   0.07,-135.01) (  -0.16,-135.91)  102.91                80
 06/25/2018   22:11:28   (   0.06,-135.05) (   0.88,-131.38)  418.19                80
 06/27/2018   10:30:36   (  -0.09,-135.10) (   0.25,-136.66)  177.73                80
 06/28/2018   10:14:31   (  -0.08,-135.14) (  -0.72,-132.12)  343.05                80
 06/29/2018   22:33:48   (   0.10,-135.20) (  -0.39,-137.44)  254.84                80