Simultaneous Nadir Overpasses (SNOs) between GOES-17 and NPP
TLE Epoch: 2022 12 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)
 12/17/2022   22:35:01   (   0.01,-137.26) (  -0.03,-137.54)   30.99                80
 12/18/2022   22:18:58   (   0.01,-137.25) (   0.98,-133.01)  483.81                80
 12/20/2022   10:40:47   (   0.00,-137.23) (   0.22,-138.28)  118.81                80
 12/21/2022   10:19:24   (   0.00,-137.22) (  -0.78,-133.75)  395.12                80
 12/22/2022   22:41:22   (  -0.01,-137.17) (  -0.41,-139.06)  214.12                80
 12/23/2022   22:22:39   (  -0.01,-137.15) (   0.60,-134.53)  299.23                80
 12/25/2022   10:47:08   (   0.01,-137.12) (   0.59,-139.80)  305.18                80
 12/26/2022   10:25:44   (   0.00,-137.09) (  -0.42,-135.27)  207.69                80
 12/27/2022   22:50:22   (  -0.01,-137.04) (  -0.81,-140.57)  402.68                80
 12/28/2022   22:28:58   (   0.00,-137.01) (   0.20,-136.04)  110.28                80