Simultaneous Nadir Overpasses (SNOs) between GOES-17 and NPP
TLE Epoch: 2019 11 17.  Predictions up to the next  14.0 days:

     Date     Time(GOES-17)   GOES-17 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 11/17/2019   22:46:39   (  -0.00,-137.21) (  -0.77,-140.62)  389.52                80
 11/18/2019   22:30:33   (   0.00,-137.20) (   0.23,-136.09)  126.19                80
 11/20/2019   10:52:20   (  -0.01,-137.19) (   0.93,-141.36)  475.73                80
 11/21/2019   10:30:55   (  -0.01,-137.18) (  -0.06,-136.82)   39.78                80
 11/23/2019   22:34:06   (   0.01,-137.15) (  -0.09,-137.60)   50.81                80
 11/24/2019   22:18:00   (   0.00,-137.14) (   0.90,-133.06)  464.44                80
 11/26/2019   10:39:48   (   0.01,-137.12) (   0.25,-138.34)  138.24                80
 11/27/2019   10:18:22   (   0.00,-137.10) (  -0.75,-133.80)  376.44                80
 11/28/2019   22:42:57   (  -0.01,-137.08) (  -0.46,-139.10)  230.82                80
 11/29/2019   22:21:32   (  -0.00,-137.06) (   0.54,-134.57)  283.54                80
 12/01/2019   10:45:59   (   0.01,-137.03) (   0.61,-139.84)  320.11                80