Simultaneous Nadir Overpasses (SNOs) between GOES-17 and NPP
TLE Epoch: 2023 7 15.  Predictions up to the next  14.0 days:

     Date     Time(GOES-17)   GOES-17 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 07/15/2023   20:18:46   (  -0.01,-104.72) (   0.40,-102.77)  221.19                80
 07/17/2023   08:40:34   (   0.01,-104.73) (   0.76,-108.05)  378.66                80
 07/18/2023   08:19:10   (   0.01,-104.73) (  -0.25,-103.52)  137.14                80
 07/19/2023   20:41:06   (  -0.01,-104.71) (  -0.95,-108.83)  469.81                80
 07/20/2023   20:25:02   (  -0.01,-104.71) (   0.06,-104.30)   46.53                80
 07/23/2023   08:28:06   (   0.01,-104.73) (   0.07,-105.05)   36.19                80
 07/24/2023   08:06:41   (   0.01,-104.73) (  -0.94,-100.52)  479.94                80
 07/25/2023   20:28:37   (  -0.01,-104.72) (  -0.25,-105.83)  126.85                80
 07/26/2023   20:12:33   (  -0.01,-104.72) (   0.77,-101.30)  389.47                80
 07/28/2023   08:34:20   (   0.01,-104.74) (   0.43,-106.57)  209.45                80