Simultaneous Nadir Overpasses (SNOs) between GOES-17 and NPP
TLE Epoch: 2021 2 7.  Predictions up to the next  14.0 days:

     Date     Time(GOES-17)   GOES-17 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 02/07/2021   22:46:10   (   0.04,-137.21) (  -0.73,-140.61)  386.91                80
 02/08/2021   22:30:05   (   0.03,-137.20) (   0.30,-136.08)  128.41                80
 02/10/2021   10:51:53   (  -0.02,-137.17) (   0.91,-141.34)  474.96                80
 02/11/2021   10:30:28   (  -0.01,-137.16) (  -0.11,-136.81)   40.33                80
 02/13/2021   22:33:39   (   0.01,-137.14) (  -0.09,-137.58)   50.15                80
 02/14/2021   22:17:35   (   0.01,-137.13) (   0.93,-133.05)  464.73                80
 02/16/2021   10:39:22   (  -0.01,-137.09) (   0.28,-138.31)  139.44                80
 02/17/2021   10:17:57   (  -0.01,-137.08) (  -0.75,-133.79)  375.07                80
 02/18/2021   22:39:53   (   0.01,-137.06) (  -0.47,-139.08)  231.39                80
 02/19/2021   22:23:48   (   0.00,-137.03) (   0.55,-134.55)  282.86                80