Simultaneous Nadir Overpasses (SNOs) between GOES-15 and NPP
TLE Epoch: 2019 10 23.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 10/23/2019   22:14:59   (  -0.17,-128.26) (  -1.17,-132.60)  495.31                80
 10/24/2019   21:58:54   (  -0.18,-128.28) (  -0.13,-128.08)   23.73                80
 10/27/2019   09:59:17   (   0.18,-128.38) (   0.27,-128.82)   50.33                80
 10/28/2019   09:43:12   (   0.19,-128.40) (  -0.72,-124.29)  468.34                80
 10/29/2019   22:02:28   (  -0.16,-128.38) (  -0.44,-129.60)  138.89                80
 10/30/2019   21:46:23   (  -0.18,-128.40) (   0.55,-125.06)  379.59                80
 11/01/2019   10:05:31   (   0.15,-128.47) (   0.57,-130.35)  214.25                80
 11/02/2019   09:49:25   (   0.16,-128.48) (  -0.42,-125.81)  303.79                80
 11/03/2019   22:08:42   (  -0.13,-128.45) (  -0.73,-131.12)  304.59                80
 11/04/2019   21:52:36   (  -0.14,-128.46) (   0.26,-126.59)  213.41                80
 11/06/2019   10:11:44   (   0.12,-128.53) (   0.86,-131.87)  380.69                80