Simultaneous Nadir Overpasses (SNOs) between GOES-15 and NPP
TLE Epoch: 2019 11 3.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 11/03/2019   22:08:41   (  -0.13,-128.44) (  -0.74,-131.12)  305.60                80
 11/04/2019   21:52:37   (  -0.14,-128.45) (   0.30,-126.59)  212.12                80
 11/06/2019   10:11:44   (   0.11,-128.51) (   0.87,-131.86)  382.05                80
 11/07/2019   09:55:39   (   0.13,-128.52) (  -0.12,-127.33)  135.48                80
 11/08/2019   22:14:55   (  -0.10,-128.48) (  -1.03,-132.64)  474.27                80
 11/09/2019   21:58:50   (  -0.11,-128.48) (  -0.04,-128.10)   43.16                80
 11/12/2019   09:59:12   (   0.10,-128.55) (   0.16,-128.85)   34.47                80
 11/13/2019   09:43:07   (   0.12,-128.55) (  -0.83,-124.31)  482.34                80
 11/14/2019   22:02:22   (  -0.09,-128.49) (  -0.37,-129.61)  128.89                80
 11/15/2019   21:46:18   (  -0.11,-128.49) (   0.68,-125.09)  387.45                80