Simultaneous Nadir Overpasses (SNOs) between GOES-17 and NPP
TLE Epoch: 2022 12 18.  Predictions up to the next  14.0 days:

     Date     Time(GOES-17)   GOES-17 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 12/18/2022   22:18:57   (  -0.01,-137.33) (   0.94,-133.00)  492.95                80
 12/20/2022   10:40:48   (   0.01,-137.33) (   0.20,-138.29)  108.37                80
 12/21/2022   10:19:24   (   0.01,-137.32) (  -0.81,-133.76)  406.92                80
 12/22/2022   22:41:23   (  -0.00,-137.30) (  -0.38,-139.06)  200.10                80
 12/23/2022   22:25:19   (   0.00,-137.29) (   0.63,-134.53)  314.52                80
 12/25/2022   10:47:08   (  -0.01,-137.27) (   0.56,-139.80)  288.58                80
 12/26/2022   10:25:45   (  -0.01,-137.26) (  -0.45,-135.27)  225.72                80
 12/27/2022   22:47:43   (   0.02,-137.23) (  -0.73,-140.58)  382.26                80
 12/28/2022   22:31:40   (   0.02,-137.21) (   0.28,-136.05)  132.16                80
 12/30/2022   10:50:49   (  -0.02,-137.19) (   0.91,-141.33)  470.98                80
 12/31/2022   10:34:46   (  -0.02,-137.17) (  -0.11,-136.80)   43.19                80