Simultaneous Nadir Overpasses (SNOs) between GOES-15 and NPP
TLE Epoch: 2023 9 12.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 09/12/2023   17:36:54   (   0.37, 116.43) (   0.25, 116.98)   63.04                80
 09/14/2023   06:01:35   (  -0.36, 114.79) (  -1.06, 111.60)  362.94                80
 09/15/2023   05:40:13   (  -0.37, 113.74) (   0.13, 116.09)  267.37                80
 09/16/2023   18:04:45   (   0.36, 112.18) (   0.69, 110.74)  163.69                80
 09/17/2023   17:43:23   (   0.37, 111.14) (  -0.57, 115.22)  466.24                80
 09/19/2023   06:05:24   (  -0.36, 109.48) (  -0.29, 109.85)   41.58                80
 09/20/2023   18:29:56   (   0.34, 107.90) (   1.10, 104.50)  387.80                80
 09/21/2023   18:08:34   (   0.35, 106.86) (  -0.10, 108.99)  242.47                80
 09/23/2023   06:33:15   (  -0.33, 105.21) (  -0.69, 103.60)  182.79                80
 09/24/2023   06:11:52   (  -0.34, 104.15) (   0.52, 108.09)  448.74                80
 09/25/2023   18:33:45   (   0.32, 102.57) (   0.29, 102.75)   20.21                80