Simultaneous Nadir Overpasses (SNOs) between GOES-17 and NPP
TLE Epoch: 2020 10 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)
 10/16/2020   10:43:26   (   0.03,-137.21) (   0.59,-139.82)  296.79                80
 10/17/2020   10:27:20   (   0.03,-137.21) (  -0.40,-135.28)  219.65                80
 10/18/2020   22:46:36   (  -0.03,-137.20) (  -0.80,-140.58)  385.68                80
 10/19/2020   22:30:31   (  -0.03,-137.20) (   0.25,-136.06)  130.27                80
 10/21/2020   10:49:39   (   0.03,-137.19) (   0.93,-141.33)  471.47                80
 10/22/2020   10:33:33   (   0.03,-137.18) (  -0.06,-136.80)   43.96                80
 10/24/2020   22:34:03   (  -0.02,-137.15) (  -0.14,-137.56)   47.47                80
 10/25/2020   22:17:58   (  -0.02,-137.14) (   0.92,-133.04)  467.87                80
 10/27/2020   10:37:06   (   0.01,-137.13) (   0.26,-138.31)  134.49                80
 10/28/2020   10:21:00   (   0.01,-137.12) (  -0.74,-133.78)  380.64                80