Simultaneous Nadir Overpasses (SNOs) between GOES-17 and NPP
TLE Epoch: 2022 12 30.  Predictions up to the next  14.0 days:

     Date     Time(GOES-17)   GOES-17 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 12/30/2022   10:53:30   (  -0.01,-137.34) (   0.86,-141.33)  454.73                80
 12/31/2022   10:32:06   (  -0.01,-137.33) (  -0.15,-136.80)   61.27                80
 01/02/2023   22:35:20   (  -0.02,-137.32) (  -0.06,-137.57)   28.38                80
 01/03/2023   22:19:16   (  -0.02,-137.31) (   0.96,-133.04)  487.01                80
 01/05/2023   10:41:06   (   0.02,-137.30) (   0.22,-138.32)  114.90                80
 01/06/2023   10:19:41   (   0.02,-137.29) (  -0.75,-133.78)  400.09                80
 01/07/2023   22:41:40   (  -0.02,-137.27) (  -0.42,-139.09)  207.13                80
 01/08/2023   22:25:36   (  -0.01,-137.25) (   0.61,-134.56)  307.55                80
 01/10/2023   10:47:25   (   0.01,-137.24) (   0.56,-139.83)  295.19                80
 01/11/2023   10:26:01   (   0.00,-137.22) (  -0.41,-135.29)  219.20                80
 01/12/2023   22:50:39   (   0.00,-137.19) (  -0.75,-140.60)  388.79                80