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) (  -0.41,-129.60)  138.89                80
 10/30/2019   21:46:23   (  -0.17,-128.39) (   0.58,-125.07)  379.57                80
 11/01/2019   10:05:30   (   0.15,-128.47) (   0.60,-130.34)  214.09                80
 11/02/2019   09:49:26   (   0.16,-128.48) (  -0.45,-125.81)  303.96                80
 11/03/2019   22:08:42   (  -0.13,-128.45) (  -0.70,-131.13)  304.67                80
 11/04/2019   21:52:37   (  -0.14,-128.46) (   0.28,-126.59)  213.31                80
 11/06/2019   10:11:44   (   0.12,-128.53) (   0.89,-131.86)  380.65                80
 11/07/2019   09:55:40   (   0.13,-128.54) (  -0.16,-127.34)  137.16                80
 11/08/2019   22:14:55   (  -0.10,-128.50) (  -1.05,-132.64)  471.99                80
 11/09/2019   21:58:50   (  -0.11,-128.51) (  -0.00,-128.11)   45.75                80