Simultaneous Nadir Overpasses (SNOs) between GOES-15 and NPP
TLE Epoch: 2019 6 26.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 06/26/2019   10:05:31   (  -0.08,-128.02) (   0.47,-130.38)  270.12                80
 06/27/2019   09:49:27   (  -0.07,-127.99) (  -0.53,-125.85)  243.15                80
 06/28/2019   22:08:44   (   0.10,-127.94) (  -0.63,-131.16)  367.04                80
 06/29/2019   21:52:40   (   0.09,-127.91) (   0.38,-126.63)  146.05                80
 07/01/2019   10:11:48   (  -0.12,-127.86) (   0.80,-131.90)  460.97                80
 07/02/2019   09:55:43   (  -0.11,-127.82) (  -0.21,-127.37)   51.26                80
 07/04/2019   21:56:15   (   0.12,-127.71) (  -0.00,-128.13)   48.90                80
 07/05/2019   21:40:11   (   0.11,-127.67) (   1.00,-123.60)  463.41                80
 07/07/2019   09:59:19   (  -0.13,-127.61) (   0.17,-128.87)  144.40                80
 07/08/2019   09:43:15   (  -0.12,-127.57) (  -0.84,-124.34)  367.38                80
 07/09/2019   22:02:32   (   0.15,-127.49) (  -0.31,-129.65)  245.98                80