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)
 07/07/2019   09:59:19   (  -0.13,-127.65) (   0.14,-128.88)  140.29                80
 07/08/2019   09:43:15   (  -0.12,-127.61) (  -0.86,-124.34)  372.00                80
 07/09/2019   22:02:32   (   0.15,-127.54) (  -0.30,-129.65)  240.32                80
 07/10/2019   21:46:27   (   0.14,-127.50) (   0.65,-125.11)  272.09                80
 07/12/2019   10:05:35   (  -0.17,-127.45) (   0.51,-130.38)  335.14                80
 07/13/2019   09:49:31   (  -0.16,-127.40) (  -0.49,-125.85)  176.61                80
 07/14/2019   22:08:48   (   0.19,-127.32) (  -0.66,-131.16)  437.27                80
 07/15/2019   21:52:43   (   0.18,-127.28) (   0.35,-126.63)   74.59                80
 07/18/2019   09:53:06   (  -0.19,-127.17) (  -0.13,-127.36)   21.38                80
 07/19/2019   09:37:02   (  -0.18,-127.12) (  -1.14,-122.82)  490.04                80