Simultaneous Nadir Overpasses (SNOs) between GOES-15 and NPP
TLE Epoch: 2019 8 8.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 08/09/2019   09:43:27   (  -0.28,-128.40) (  -1.18,-124.41)  455.25                80
 08/10/2019   22:02:44   (   0.30,-128.39) (   0.03,-129.72)  151.47                80
 08/11/2019   21:46:40   (   0.30,-128.40) (   1.05,-125.19)  366.20                80
 08/13/2019   10:05:47   (  -0.32,-128.44) (   0.16,-130.45)  229.80                80
 08/14/2019   09:49:42   (  -0.31,-128.45) (  -0.86,-125.92)  287.55                80
 08/15/2019   22:09:00   (   0.33,-128.43) (  -0.29,-131.23)  319.93                80
 08/16/2019   21:52:55   (   0.33,-128.43) (   0.72,-126.70)  197.46                80
 08/18/2019   10:12:04   (  -0.34,-128.48) (   0.42,-131.98)  398.52                80
 08/19/2019   09:55:59   (  -0.34,-128.48) (  -0.59,-127.45)  118.55                80
 08/20/2019   22:15:15   (   0.35,-128.45) (  -0.61,-132.75)  489.76                80
 08/21/2019   21:59:11   (   0.35,-128.45) (   0.41,-128.22)   27.08                80