Simultaneous Nadir Overpasses (SNOs) between GOES-15 and NPP
TLE Epoch: 2019 10 19.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 10/19/2019   21:52:40   (  -0.22,-128.17) (   0.13,-126.55)  184.84                80
 10/21/2019   10:11:48   (   0.19,-128.25) (   1.00,-131.83)  407.81                80
 10/22/2019   09:55:43   (   0.20,-128.27) (   0.01,-127.29)  111.02                80
 10/23/2019   22:14:59   (  -0.17,-128.26) (  -1.17,-132.60)  496.07                80
 10/24/2019   21:58:54   (  -0.19,-128.28) (  -0.13,-128.08)   22.81                80
 10/27/2019   09:59:17   (   0.18,-128.37) (   0.27,-128.83)   51.51                80
 10/28/2019   09:43:12   (   0.19,-128.39) (  -0.72,-124.29)  466.95                80
 10/29/2019   22:02:28   (  -0.17,-128.36) (  -0.43,-129.60)  140.92                80
 10/30/2019   21:46:23   (  -0.18,-128.38) (   0.55,-125.06)  377.36                80
 11/01/2019   10:05:31   (   0.15,-128.45) (   0.57,-130.35)  216.45                80
 11/02/2019   09:49:25   (   0.16,-128.46) (  -0.42,-125.81)  301.37                80