Simultaneous Nadir Overpasses (SNOs) between GOES-15 and NPP
TLE Epoch: 2019 6 27.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 06/28/2019   22:08:44   (   0.10,-127.95) (  -0.64,-131.16)  366.67                80
 06/29/2019   21:52:39   (   0.09,-127.92) (   0.37,-126.63)  146.48                80
 07/01/2019   10:11:48   (  -0.12,-127.86) (   0.81,-131.90)  460.63                80
 07/02/2019   09:55:43   (  -0.11,-127.82) (  -0.20,-127.37)   51.70                80
 07/04/2019   21:56:16   (   0.12,-127.72) (   0.05,-128.14)   48.10                80
 07/05/2019   21:40:12   (   0.11,-127.68) (   1.05,-123.61)  464.20                80
 07/07/2019   09:59:20   (  -0.13,-127.62) (   0.12,-128.88)  143.72                80
 07/08/2019   09:43:14   (  -0.12,-127.57) (  -0.83,-124.34)  368.14                80
 07/09/2019   22:02:32   (   0.15,-127.50) (  -0.33,-129.65)  244.94                80
 07/10/2019   21:46:27   (   0.14,-127.46) (   0.68,-125.12)  267.00                80