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

     Date     Time(GOES-15)   GOES-15 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 08/15/2019   22:09:00   (   0.33,-128.42) (  -0.30,-131.23)  320.27                80
 08/16/2019   21:52:55   (   0.32,-128.43) (   0.72,-126.70)  196.88                80
 08/18/2019   10:12:04   (  -0.34,-128.46) (   0.42,-131.97)  400.12                80
 08/19/2019   09:55:59   (  -0.33,-128.46) (  -0.59,-127.44)  116.67                80
 08/20/2019   22:15:15   (   0.35,-128.43) (  -0.62,-132.74)  491.45                80
 08/21/2019   21:59:11   (   0.34,-128.43) (   0.40,-128.21)   25.12                80
 08/24/2019   09:59:34   (  -0.35,-128.45) (  -0.21,-128.94)   56.83                80
 08/25/2019   09:43:29   (  -0.35,-128.44) (  -1.23,-124.41)  458.83                80
 08/26/2019   22:02:47   (   0.37,-128.40) (   0.09,-129.73)  151.14                80
 08/27/2019   21:46:41   (   0.37,-128.38) (   1.05,-125.18)  364.22                80
 08/29/2019   10:05:49   (  -0.38,-128.40) (   0.10,-130.46)  234.90                80