Simultaneous Nadir Overpasses (SNOs) between GOES-17 and NPP
TLE Epoch: 2022 12 20.  Predictions up to the next  14.0 days:

     Date     Time(GOES-17)   GOES-17 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 12/20/2022   10:40:47   (   0.02,-137.34) (   0.25,-138.27)  106.64                80
 12/21/2022   10:19:23   (   0.02,-137.34) (  -0.76,-133.74)  409.51                80
 12/22/2022   22:41:22   (  -0.02,-137.34) (  -0.43,-139.05)  195.84                80
 12/23/2022   22:25:19   (  -0.02,-137.33) (   0.64,-134.54)  319.70                80
 12/25/2022   10:47:08   (   0.02,-137.32) (   0.55,-139.81)  282.42                80
 12/26/2022   10:25:45   (   0.01,-137.31) (  -0.46,-135.28)  232.63                80
 12/27/2022   22:50:23   (  -0.01,-137.30) (  -0.72,-140.58)  373.73                80
 12/28/2022   22:29:00   (  -0.00,-137.29) (   0.29,-136.06)  141.34                80
 12/30/2022   10:53:29   (   0.00,-137.28) (   0.89,-141.33)  460.86                80
 12/31/2022   10:32:06   (  -0.00,-137.27) (  -0.12,-136.80)   54.07                80
 01/02/2023   22:37:59   (  -0.01,-137.24) (  -0.09,-137.57)   38.07                80