Simultaneous Nadir Overpasses (SNOs) between GOES-15 and NPP
TLE Epoch: 2019 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)
 08/10/2019   22:02:44   (   0.30,-128.39) (   0.01,-129.72)  151.49                80
 08/11/2019   21:46:39   (   0.30,-128.40) (   1.03,-125.19)  366.09                80
 08/13/2019   10:05:48   (  -0.32,-128.44) (   0.12,-130.46)  229.98                80
 08/14/2019   09:49:43   (  -0.31,-128.45) (  -0.90,-125.93)  287.27                80
 08/15/2019   22:08:59   (   0.33,-128.42) (  -0.31,-131.23)  320.30                80
 08/16/2019   21:52:55   (   0.33,-128.43) (   0.70,-126.70)  197.04                80
 08/18/2019   10:12:03   (  -0.34,-128.47) (   0.44,-131.97)  399.01                80
 08/19/2019   09:55:59   (  -0.34,-128.47) (  -0.57,-127.44)  117.95                80
 08/20/2019   22:15:15   (   0.35,-128.44) (  -0.63,-132.74)  490.44                80
 08/21/2019   21:59:11   (   0.35,-128.44) (   0.39,-128.21)   26.31                80