Simultaneous Nadir Overpasses (SNOs) between GOES-15 and NPP
TLE Epoch: 2020 2 5.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 02/05/2020   10:04:46   (  -0.03,-128.10) (   0.47,-130.28)  248.07                80
 02/06/2020   09:48:42   (  -0.03,-128.07) (  -0.52,-125.74)  264.85                80
 02/07/2020   22:10:38   (   0.01,-128.03) (  -0.69,-131.04)  344.07                80
 02/08/2020   21:49:14   (  -0.00,-128.00) (   0.31,-126.51)  168.69                80
 02/10/2020   10:11:02   (   0.01,-127.93) (   0.88,-131.78)  439.32                80
 02/11/2020   09:54:58   (   0.00,-127.89) (  -0.11,-127.25)   72.93                80
 02/13/2020   21:58:10   (   0.00,-127.81) (  -0.04,-128.03)   25.00                80
 02/14/2020   21:36:46   (   0.01,-127.77) (   0.96,-123.50)  486.85                80
 02/16/2020   09:58:34   (   0.00,-127.70) (   0.23,-128.77)  121.92                80
 02/17/2020   09:42:30   (   0.00,-127.66) (  -0.77,-124.24)  389.80                80
 02/18/2020   22:04:26   (  -0.01,-127.60) (  -0.44,-129.54)  220.88                80