Simultaneous Nadir Overpasses (SNOs) between GOES-15 and NPP
TLE Epoch: 2019 10 16.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 10/16/2019   10:05:34   (   0.22,-128.12) (   0.71,-130.30)  248.24                80
 10/17/2019   09:49:28   (   0.24,-128.15) (  -0.27,-125.76)  271.26                80
 10/18/2019   22:08:45   (  -0.21,-128.14) (  -0.88,-131.08)  335.31                80
 10/19/2019   21:52:40   (  -0.22,-128.16) (   0.15,-126.55)  183.83                80
 10/21/2019   10:11:48   (   0.19,-128.25) (   0.97,-131.83)  408.50                80
 10/22/2019   09:55:43   (   0.20,-128.26) (  -0.01,-127.30)  110.05                80
 10/23/2019   22:14:59   (  -0.18,-128.24) (  -1.14,-132.61)  498.06                80
 10/24/2019   21:58:54   (  -0.19,-128.26) (  -0.16,-128.07)   20.58                80
 10/27/2019   09:59:17   (   0.18,-128.35) (   0.30,-128.82)   53.74                80
 10/28/2019   09:43:12   (   0.19,-128.37) (  -0.74,-124.29)  464.53                80
 10/29/2019   22:02:27   (  -0.17,-128.33) (  -0.47,-129.59)  144.40                80