Simultaneous Nadir Overpasses (SNOs) between GOES-15 and NPP
TLE Epoch: 2020 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)
 02/07/2020   22:10:38   (   0.02,-128.03) (  -0.68,-131.05)  343.94                80
 02/08/2020   21:49:14   (  -0.00,-128.00) (   0.32,-126.51)  169.02                80
 02/10/2020   10:11:02   (   0.00,-127.93) (   0.87,-131.78)  438.98                80
 02/11/2020   09:54:58   (   0.00,-127.90) (  -0.13,-127.25)   73.28                80
 02/13/2020   21:58:11   (   0.01,-127.82) (  -0.03,-128.03)   24.31                80
 02/14/2020   21:36:46   (   0.01,-127.78) (   0.97,-123.50)  487.66                80
 02/16/2020   09:58:34   (   0.00,-127.70) (   0.22,-128.77)  121.15                80
 02/17/2020   09:42:30   (   0.00,-127.66) (  -0.78,-124.24)  390.68                80
 02/18/2020   22:01:46   (  -0.01,-127.61) (  -0.43,-129.54)  219.75                80
 02/19/2020   21:45:42   (  -0.00,-127.57) (   0.58,-125.01)  291.60                80
 02/21/2020   10:04:50   (  -0.00,-127.48) (   0.61,-130.28)  318.33                80