Simultaneous Nadir Overpasses (SNOs) between GOES-15 and NPP
TLE Epoch: 2019 7 6.  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   09:59:20   (  -0.13,-127.65) (   0.14,-128.88)  140.23                80
 07/08/2019   09:43:15   (  -0.12,-127.61) (  -0.87,-124.35)  372.08                80
 07/09/2019   22:02:31   (   0.15,-127.54) (  -0.35,-129.64)  240.27                80
 07/10/2019   21:46:27   (   0.14,-127.50) (   0.66,-125.11)  272.14                80
 07/12/2019   10:05:35   (  -0.17,-127.45) (   0.51,-130.38)  334.99                80
 07/13/2019   09:49:31   (  -0.16,-127.40) (  -0.50,-125.85)  176.76                80
 07/14/2019   22:08:48   (   0.19,-127.32) (  -0.65,-131.16)  437.17                80
 07/15/2019   21:52:43   (   0.18,-127.28) (   0.30,-126.62)   74.73                80
 07/18/2019   09:53:06   (  -0.19,-127.17) (  -0.14,-127.36)   21.06                80
 07/19/2019   09:37:02   (  -0.18,-127.13) (  -1.15,-122.83)  490.30                80