Simultaneous Nadir Overpasses (SNOs) between GOES-15 and NPP
TLE Epoch: 2019 9 23.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 09/25/2019   10:02:01   (   0.31,-127.80) (   0.50,-128.74)  106.82                80
 09/26/2019   09:40:36   (   0.32,-127.76) (  -0.47,-124.20)  405.72                80
 09/27/2019   22:02:32   (  -0.30,-127.68) (  -0.70,-129.50)  207.26                80
 09/28/2019   21:46:27   (  -0.31,-127.64) (   0.27,-124.96)  305.61                80
 09/30/2019   10:05:35   (   0.29,-127.61) (   0.88,-130.23)  298.68                80
 10/01/2019   09:49:29   (   0.30,-127.57) (  -0.09,-125.69)  213.61                80
 10/02/2019   22:08:46   (  -0.28,-127.48) (  -1.08,-130.99)  400.90                80
 10/03/2019   21:52:41   (  -0.29,-127.44) (  -0.05,-126.46)  111.42                80
 10/05/2019   10:11:49   (   0.27,-127.40) (   1.25,-131.72)  493.16                80
 10/06/2019   09:55:44   (   0.28,-127.35) (   0.22,-127.20)   18.59                80