Simultaneous Nadir Overpasses (SNOs) between GOES-17 and NPP
TLE Epoch: 2020 10 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)
 10/17/2020   10:27:21   (   0.03,-137.21) (  -0.41,-135.29)  219.80                80
 10/18/2020   22:46:36   (  -0.03,-137.20) (  -0.79,-140.59)  385.63                80
 10/19/2020   22:30:31   (  -0.03,-137.20) (   0.20,-136.05)  130.34                80
 10/21/2020   10:49:38   (   0.03,-137.19) (   0.97,-141.32)  471.16                80
 10/22/2020   10:33:33   (   0.03,-137.18) (  -0.08,-136.80)   44.36                80
 10/24/2020   22:34:03   (  -0.02,-137.15) (  -0.13,-137.56)   47.12                80
 10/25/2020   22:17:59   (  -0.02,-137.14) (   0.93,-133.04)  468.20                80
 10/27/2020   10:37:06   (   0.01,-137.13) (   0.25,-138.31)  133.95                80
 10/28/2020   10:21:01   (   0.01,-137.12) (  -0.74,-133.78)  381.24                80
 10/29/2020   22:40:16   (  -0.01,-137.10) (  -0.45,-139.08)  225.96                80
 10/30/2020   22:24:10   (  -0.01,-137.08) (   0.55,-134.54)  288.92                80