Simultaneous Nadir Overpasses (SNOs) between GOES-15 and NPP
TLE Epoch: 2023 9 16.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 09/16/2023   18:04:45   (   0.36, 112.20) (   0.70, 110.75)  165.33                80
 09/17/2023   17:43:23   (   0.37, 111.16) (  -0.56, 115.23)  464.25                80
 09/19/2023   06:05:23   (  -0.36, 109.51) (  -0.31, 109.85)   39.26                80
 09/20/2023   18:29:56   (   0.34, 107.93) (   1.12, 104.51)  390.84                80
 09/21/2023   18:08:34   (   0.35, 106.89) (  -0.14, 108.98)  239.08                80
 09/23/2023   06:33:15   (  -0.33, 105.24) (  -0.71, 103.61)  186.62                80
 09/24/2023   06:11:53   (  -0.34, 104.19) (   0.56, 108.09)  444.59                80
 09/25/2023   18:33:44   (   0.33, 102.61) (   0.31, 102.75)   15.50                80
 09/27/2023   06:58:26   (  -0.30, 100.96) (  -1.09,  97.36)  410.07                80
 09/28/2023   06:37:03   (  -0.32,  99.90) (   0.12, 101.85)  222.32                80
 09/29/2023   19:01:36   (   0.30,  98.29) (   0.69,  96.50)  203.86                80