Simultaneous Nadir Overpasses (SNOs) between GOES-15 and NPP
TLE Epoch: 2018 10 26.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 10/27/2018   10:43:37   (   0.18,-135.34) (   1.17,-139.72)  498.81                80
 10/28/2018   10:24:51   (   0.19,-135.31) (   0.19,-135.18)   14.44                80
 10/30/2018   22:28:03   (  -0.18,-135.16) (  -0.32,-135.96)   90.29                80
 10/31/2018   22:11:57   (  -0.19,-135.13) (   0.65,-131.42)  422.59                80
 11/02/2018   10:31:05   (   0.16,-135.13) (   0.52,-136.70)  178.88                80
 11/03/2018   10:14:59   (   0.17,-135.09) (  -0.46,-132.16)  333.33                80
 11/04/2018   22:34:16   (  -0.14,-134.97) (  -0.71,-137.47)  285.46                80
 11/05/2018   22:18:10   (  -0.15,-134.93) (   0.27,-132.93)  227.12                80
 11/07/2018   10:37:18   (   0.13,-134.93) (   0.84,-138.21)  373.76                80
 11/08/2018   10:21:13   (   0.14,-134.89) (  -0.14,-133.68)  138.01                80