Simultaneous Nadir Overpasses (SNOs) between GOES-15 and NPP
TLE Epoch: 2023 9 13.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 09/14/2023   06:01:34   (  -0.36, 114.79) (  -1.10, 111.61)  363.13                80
 09/15/2023   05:40:13   (  -0.37, 113.74) (   0.16, 116.09)  267.11                80
 09/16/2023   18:04:45   (   0.36, 112.18) (   0.66, 110.74)  164.19                80
 09/17/2023   17:43:23   (   0.37, 111.14) (  -0.54, 115.23)  465.68                80
 09/19/2023   06:05:24   (  -0.36, 109.49) (  -0.26, 109.84)   41.06                80
 09/20/2023   18:29:56   (   0.34, 107.91) (   1.08, 104.50)  388.57                80
 09/21/2023   18:08:34   (   0.35, 106.87) (  -0.13, 108.99)  241.63                80
 09/23/2023   06:33:14   (  -0.33, 105.22) (  -0.72, 103.61)  183.62                80
 09/24/2023   06:11:53   (  -0.34, 104.16) (   0.55, 108.09)  447.87                80
 09/25/2023   18:33:45   (   0.32, 102.58) (   0.26, 102.74)   19.36                80