Simultaneous Nadir Overpasses (SNOs) between GOES-15 and NPP
TLE Epoch: 2019 10 12.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 10/13/2019   22:02:31   (  -0.23,-127.99) (  -0.56,-129.56)  177.76                80
 10/14/2019   21:46:25   (  -0.25,-128.02) (   0.42,-125.02)  342.33                80
 10/16/2019   10:05:34   (   0.22,-128.12) (   0.71,-130.30)  248.23                80
 10/17/2019   09:49:29   (   0.24,-128.15) (  -0.33,-125.78)  271.19                80
 10/18/2019   22:08:45   (  -0.21,-128.13) (  -0.89,-131.08)  336.17                80
 10/19/2019   21:52:40   (  -0.22,-128.15) (   0.15,-126.55)  182.86                80
 10/21/2019   10:11:48   (   0.19,-128.24) (   0.98,-131.84)  408.98                80
 10/22/2019   09:55:43   (   0.20,-128.26) (  -0.00,-127.30)  109.48                80
 10/23/2019   22:14:59   (  -0.18,-128.23) (  -1.15,-132.61)  499.38                80
 10/24/2019   21:58:54   (  -0.19,-128.24) (  -0.16,-128.07)   19.16                80