Simultaneous Nadir Overpasses (SNOs) between GOES-17 and NPP
TLE Epoch: 2021 10 31.  Predictions up to the next  14.0 days:

     Date     Time(GOES-17)   GOES-17 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 10/31/2021   10:22:21   (   0.02,-137.22) (  -0.71,-133.97)  371.04                80
 11/01/2021   22:41:39   (  -0.02,-137.21) (  -0.48,-139.27)  234.64                80
 11/02/2021   22:25:35   (  -0.02,-137.21) (   0.52,-134.74)  280.81                80
 11/04/2021   10:44:46   (   0.02,-137.20) (   0.64,-140.02)  321.79                80
 11/05/2021   10:28:42   (   0.02,-137.19) (  -0.36,-135.49)  193.04                80
 11/06/2021   22:48:00   (  -0.02,-137.16) (  -0.82,-140.80)  414.37                80
 11/07/2021   22:31:57   (  -0.02,-137.15) (   0.18,-136.27)   99.86                80
 11/10/2021   10:35:04   (   0.01,-137.10) (  -0.03,-137.02)    9.63                80
 11/12/2021   22:35:39   (  -0.01,-137.05) (  -0.15,-137.80)   85.38                80
 11/13/2021   22:19:35   (  -0.01,-137.03) (   0.86,-133.27)  428.51                80