Simultaneous Nadir Overpasses (SNOs) between GOES-15 and NPP
TLE Epoch: 2019 2 7.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 02/07/2019   10:14:23   (  -0.05,-127.95) (   0.86,-131.91)  451.68                80
 02/08/2019   09:52:59   (  -0.05,-127.99) (  -0.18,-127.39)   68.22                80
 02/10/2019   21:58:49   (   0.05,-127.98) (   0.03,-128.16)   19.64                80
 02/13/2019   10:01:51   (  -0.04,-128.12) (   0.15,-128.89)   88.19                80
 02/14/2019   09:40:27   (  -0.04,-128.14) (  -0.90,-124.37)  430.81                80
 02/15/2019   22:05:02   (   0.03,-128.10) (  -0.30,-129.67)  178.12                80
 02/16/2019   21:43:37   (   0.03,-128.12) (   0.69,-125.13)  340.45                80
 02/18/2019   10:08:04   (  -0.01,-128.22) (   0.48,-130.40)  248.75                80
 02/19/2019   09:46:38   (  -0.01,-128.23) (  -0.51,-125.86)  269.63                80
 02/20/2019   22:11:14   (   0.00,-128.18) (  -0.68,-131.16)  340.04                80