Simultaneous Nadir Overpasses (SNOs) between GOES-15 and NPP
TLE Epoch: 2019 10 24.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 10/24/2019   21:58:54   (  -0.18,-128.28) (  -0.16,-128.07)   23.84                80
 10/27/2019   09:59:17   (   0.18,-128.38) (   0.30,-128.82)   50.32                80
 10/28/2019   09:43:12   (   0.19,-128.40) (  -0.75,-124.29)  468.44                80
 10/29/2019   22:02:29   (  -0.16,-128.38) (  -0.41,-129.60)  138.79                80
 10/30/2019   21:46:23   (  -0.18,-128.40) (   0.58,-125.07)  379.73                80
 11/01/2019   10:05:31   (   0.15,-128.47) (   0.54,-130.35)  214.09                80
 11/02/2019   09:49:26   (   0.16,-128.48) (  -0.44,-125.81)  303.98                80
 11/03/2019   22:08:42   (  -0.13,-128.45) (  -0.71,-131.13)  304.38                80
 11/04/2019   21:52:37   (  -0.14,-128.46) (   0.28,-126.59)  213.65                80
 11/06/2019   10:11:45   (   0.12,-128.53) (   0.84,-131.87)  380.45                80
 11/07/2019   09:55:40   (   0.13,-128.54) (  -0.15,-127.34)  137.37                80