Simultaneous Nadir Overpasses (SNOs) between GOES-15 and NPP
TLE Epoch: 2019 11 16.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 11/17/2019   10:05:25   (   0.08,-128.53) (   0.48,-130.36)  208.83                80
 11/18/2019   09:49:20   (   0.09,-128.52) (  -0.52,-125.83)  307.19                80
 11/19/2019   22:08:36   (  -0.06,-128.47) (  -0.63,-131.14)  303.26                80
 11/20/2019   21:52:31   (  -0.07,-128.46) (   0.36,-126.60)  212.70                80
 11/22/2019   10:11:38   (   0.05,-128.49) (   0.80,-131.87)  385.52                80
 11/23/2019   09:55:33   (   0.06,-128.48) (  -0.20,-127.34)  130.19                80
 11/24/2019   22:14:48   (  -0.04,-128.42) (  -1.01,-132.64)  480.94                80
 11/25/2019   21:58:43   (  -0.05,-128.41) (   0.04,-128.11)   34.72                80
 11/28/2019   09:59:05   (   0.04,-128.42) (   0.11,-128.85)   49.13                80
 11/29/2019   09:43:00   (   0.05,-128.40) (  -0.88,-124.32)  465.94                80