Simultaneous Nadir Overpasses (SNOs) between GOES-17 and NPP
TLE Epoch: 2021 5 5.  Predictions up to the next  14.0 days:

     Date     Time(GOES-17)   GOES-17 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 05/05/2021   22:14:36   (   0.02,-137.20) (   0.97,-132.97)  482.13                80
 05/07/2021   10:39:05   (  -0.02,-137.19) (   0.24,-138.23)  119.62                80
 05/08/2021   10:17:41   (  -0.02,-137.18) (  -0.79,-133.71)  395.99                80
 05/09/2021   22:42:19   (   0.01,-137.18) (  -0.42,-139.01)  209.25                80
 05/10/2021   22:20:55   (   0.02,-137.17) (   0.61,-134.49)  306.11                80
 05/12/2021   10:45:24   (  -0.01,-137.16) (   0.54,-139.76)  296.65                80
 05/13/2021   10:24:00   (  -0.02,-137.14) (  -0.43,-135.23)  218.09                80
 05/14/2021   22:45:57   (   0.01,-137.13) (  -0.78,-140.53)  388.76                80
 05/15/2021   22:29:54   (   0.01,-137.11) (   0.26,-136.01)  125.63                80
 05/17/2021   10:51:42   (  -0.01,-137.08) (   0.96,-141.27)  478.47                80
 05/18/2021   10:30:19   (  -0.01,-137.06) (  -0.08,-136.75)   35.42                80