Simultaneous Nadir Overpasses (SNOs) between GOES-15 and NPP
TLE Epoch: 2018 8 9.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 08/11/2018   22:27:51   (   0.32,-135.26) (   0.14,-135.97)   81.83                80
 08/12/2018   22:11:47   (   0.31,-135.24) (   1.18,-131.45)  431.97                80
 08/14/2018   10:30:56   (  -0.33,-135.16) (   0.02,-136.72)  177.37                80
 08/15/2018   10:14:51   (  -0.33,-135.14) (  -0.97,-132.18)  336.05                80
 08/16/2018   22:34:09   (   0.34,-135.13) (  -0.17,-137.50)  270.19                80
 08/17/2018   22:18:05   (   0.34,-135.10) (   0.81,-132.96)  243.11                80
 08/19/2018   10:37:13   (  -0.36,-135.02) (   0.39,-138.23)  366.73                80
 08/20/2018   10:21:10   (  -0.35,-134.99) (  -0.65,-133.71)  145.95                80
 08/21/2018   22:40:27   (   0.37,-134.96) (  -0.53,-139.01)  461.75                80
 08/22/2018   22:24:23   (   0.37,-134.93) (   0.45,-134.48)   50.82                80