Simultaneous Nadir Overpasses (SNOs) between GOES-15 and NPP
TLE Epoch: 2019 2 9.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 02/10/2019   21:56:09   (   0.05,-127.99) (   0.02,-128.16)   19.36                80
 02/13/2019   10:01:52   (  -0.04,-128.13) (   0.10,-128.90)   87.73                80
 02/14/2019   09:40:27   (  -0.04,-128.15) (  -0.89,-124.36)  431.35                80
 02/15/2019   22:05:02   (   0.03,-128.10) (  -0.31,-129.66)  177.64                80
 02/16/2019   21:44:00   (   0.03,-128.12) (   0.68,-125.13)  341.01                56
 02/18/2019   10:08:04   (  -0.02,-128.22) (   0.49,-130.39)  247.90                80
 02/19/2019   09:46:39   (  -0.01,-128.24) (  -0.57,-125.87)  270.57                80
 02/20/2019   22:11:14   (   0.01,-128.19) (  -0.69,-131.16)  339.18                80
 02/21/2019   21:49:49   (   0.01,-128.20) (   0.37,-126.63)  178.99                80
 02/23/2019   10:14:16   (  -0.01,-128.30) (   0.80,-131.90)  410.65                80