Simultaneous Nadir Overpasses (SNOs) between GOES-15 and NPP
TLE Epoch: 2019 10 29.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 10/29/2019   22:02:28   (  -0.16,-128.38) (  -0.45,-129.59)  138.94                80
 10/30/2019   21:46:23   (  -0.17,-128.39) (   0.59,-125.07)  379.46                80
 11/01/2019   10:05:31   (   0.15,-128.46) (   0.58,-130.34)  214.21                80
 11/02/2019   09:49:26   (   0.16,-128.48) (  -0.46,-125.82)  303.78                80
 11/03/2019   22:08:41   (  -0.13,-128.44) (  -0.75,-131.12)  305.00                80
 11/04/2019   21:52:37   (  -0.14,-128.46) (   0.29,-126.59)  212.92                80
 11/06/2019   10:11:44   (   0.11,-128.52) (   0.88,-131.86)  381.06                80
 11/07/2019   09:55:40   (   0.13,-128.53) (  -0.17,-127.34)  136.71                80
 11/08/2019   22:14:55   (  -0.10,-128.49) (  -1.04,-132.64)  472.60                80
 11/09/2019   21:58:50   (  -0.11,-128.50) (  -0.05,-128.10)   45.10                80
 11/12/2019   09:59:12   (   0.10,-128.57) (   0.17,-128.85)   32.19                80