Simultaneous Nadir Overpasses (SNOs) between GOES-17 and NPP
TLE Epoch: 2021 11 5.  Predictions up to the next  14.0 days:

     Date     Time(GOES-17)   GOES-17 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 11/05/2021   10:28:42   (   0.02,-137.21) (  -0.36,-135.49)  196.19                80
 11/06/2021   22:48:00   (  -0.02,-137.20) (  -0.82,-140.80)  409.84                80
 11/07/2021   22:31:57   (  -0.02,-137.20) (   0.18,-136.27)  105.51                80
 11/09/2021   10:51:07   (   0.02,-137.19) (   0.98,-141.55)  496.71                80
 11/10/2021   10:35:04   (   0.02,-137.18) (  -0.03,-137.02)   18.27                80
 11/12/2021   22:35:39   (  -0.01,-137.15) (  -0.15,-137.80)   73.89                80
 11/13/2021   22:19:35   (  -0.01,-137.14) (   0.86,-133.27)  441.06                80
 11/15/2021   10:38:45   (   0.01,-137.13) (   0.30,-138.55)  161.48                80
 11/16/2021   10:22:42   (   0.01,-137.12) (  -0.71,-134.02)  353.31                80
 11/17/2021   22:41:59   (  -0.01,-137.09) (  -0.52,-139.32)  254.34                80
 11/18/2021   22:25:56   (  -0.01,-137.07) (   0.49,-134.79)  260.03                80