Simultaneous Nadir Overpasses (SNOs) between GOES-17 and NPP
TLE Epoch: 2019 11 12.  Predictions up to the next  14.0 days:

     Date     Time(GOES-17)   GOES-17 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 11/12/2019   22:40:26   (  -0.00,-137.21) (  -0.44,-139.11)  216.98                80
 11/13/2019   22:24:21   (  -0.01,-137.21) (   0.61,-134.59)  299.14                80
 11/15/2019   10:46:08   (   0.01,-137.20) (   0.61,-139.85)  302.36                80
 11/16/2019   10:24:42   (   0.01,-137.19) (  -0.38,-135.31)  213.04                80
 11/17/2019   22:46:39   (  -0.01,-137.17) (  -0.77,-140.62)  393.78                80
 11/18/2019   22:30:33   (  -0.01,-137.15) (   0.22,-136.09)  121.20                80
 11/20/2019   10:52:20   (   0.00,-137.13) (   0.94,-141.36)  481.56                80
 11/21/2019   10:30:55   (   0.00,-137.12) (  -0.06,-136.82)   33.07                80
 11/23/2019   22:34:06   (  -0.00,-137.07) (  -0.10,-137.60)   60.30                80
 11/24/2019   22:18:00   (  -0.01,-137.05) (   0.90,-133.06)  454.14                80
 11/26/2019   10:39:47   (   0.01,-137.02) (   0.32,-138.33)  149.56                80