Simultaneous Nadir Overpasses (SNOs) between GOES-17 and NPP
TLE Epoch: 2023 9 4.  Predictions up to the next  14.0 days:

     Date     Time(GOES-17)   GOES-17 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 09/04/2023   08:18:55   (   0.00,-104.71) (  -0.23,-103.57)  129.15                80
 09/05/2023   20:40:50   (   0.00,-104.69) (  -0.96,-108.88)  477.67                80
 09/06/2023   20:24:44   (   0.00,-104.69) (   0.05,-104.34)   39.03                80
 09/09/2023   08:27:46   (  -0.01,-104.71) (   0.06,-105.09)   42.59                80
 09/10/2023   08:06:21   (  -0.01,-104.71) (  -0.95,-100.56)  473.87                80
 09/11/2023   20:28:15   (   0.01,-104.69) (  -0.28,-105.85)  132.84                80
 09/12/2023   20:12:10   (   0.01,-104.69) (   0.74,-101.32)  384.20                80
 09/14/2023   08:33:56   (  -0.01,-104.73) (   0.44,-106.59)  212.79                80
 09/15/2023   08:12:31   (  -0.00,-104.73) (  -0.58,-102.05)  304.13                80
 09/16/2023   20:34:26   (   0.00,-104.71) (  -0.58,-107.36)  302.49                80
 09/17/2023   20:18:20   (   0.00,-104.71) (   0.45,-102.83)  214.66                80