Simultaneous Nadir Overpasses (SNOs) between GOES-15 and NPP
TLE Epoch: 2019 7 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)
 07/05/2019   21:40:11   (   0.11,-127.70) (   1.01,-123.60)  466.96                80
 07/07/2019   09:59:19   (  -0.13,-127.65) (   0.16,-128.87)  140.37                80
 07/08/2019   09:43:15   (  -0.12,-127.61) (  -0.84,-124.34)  371.93                80
 07/09/2019   22:02:32   (   0.15,-127.54) (  -0.32,-129.65)  240.35                80
 07/10/2019   21:46:27   (   0.14,-127.50) (   0.69,-125.12)  272.02                80
 07/12/2019   10:05:36   (  -0.17,-127.44) (   0.48,-130.39)  335.29                80
 07/13/2019   09:49:31   (  -0.16,-127.40) (  -0.53,-125.86)  176.47                80
 07/14/2019   22:08:48   (   0.18,-127.32) (  -0.68,-131.16)  437.39                80
 07/15/2019   21:52:43   (   0.18,-127.28) (   0.33,-126.62)   74.40                80
 07/18/2019   09:53:07   (  -0.19,-127.17) (  -0.17,-127.36)   21.69                80