Simultaneous Nadir Overpasses (SNOs) between GOES-15 and NPP
TLE Epoch: 2019 10 27.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 10/28/2019   09:43:12   (   0.19,-128.40) (  -0.72,-124.29)  468.54                80
 10/29/2019   22:02:28   (  -0.16,-128.38) (  -0.43,-129.60)  138.90                80
 10/30/2019   21:46:23   (  -0.18,-128.40) (   0.56,-125.06)  379.55                80
 11/01/2019   10:05:31   (   0.15,-128.47) (   0.56,-130.35)  214.11                80
 11/02/2019   09:49:25   (   0.16,-128.48) (  -0.43,-125.81)  303.93                80
 11/03/2019   22:08:42   (  -0.13,-128.45) (  -0.73,-131.12)  304.62                80
 11/04/2019   21:52:36   (  -0.14,-128.46) (   0.26,-126.58)  213.36                80
 11/06/2019   10:11:45   (   0.12,-128.53) (   0.85,-131.87)  380.61                80
 11/07/2019   09:55:39   (   0.13,-128.54) (  -0.13,-127.33)  137.19                80
 11/08/2019   22:14:55   (  -0.10,-128.50) (  -1.01,-132.65)  471.89                80
 11/09/2019   21:58:50   (  -0.11,-128.51) (  -0.02,-128.11)   45.79                80