Simultaneous Nadir Overpasses (SNOs) between GOES-17 and NOAA-19
TLE Epoch: 2021 4 9.  Predictions up to the next  14.0 days:

     Date     Time(GOES-17)   GOES-17 Lat/Lon  NOAA-19 Lat/Lon    Distance(km)  Time Diff(sec)
 04/09/2021   15:54:09   (   0.02,-137.21) (   0.15,-137.65)   51.15                80
 04/10/2021   15:39:46   (   0.02,-137.21) (  -0.57,-134.80)  275.34                80
 04/13/2021   04:03:20   (  -0.02,-137.18) (  -0.59,-139.74)  291.69                80
 04/14/2021   03:51:36   (  -0.02,-137.17) (   0.02,-136.86)   34.43                80
 04/15/2021   03:37:12   (  -0.02,-137.16) (   0.70,-134.00)  360.10                80
 04/17/2021   16:00:45   (   0.02,-137.13) (   0.46,-138.94)  206.52                80
 04/18/2021   15:46:21   (   0.01,-137.12) (  -0.21,-136.07)  118.48                80
 04/19/2021   15:34:38   (   0.01,-137.10) (  -0.88,-133.21)  443.26                80
 04/21/2021   04:07:14   (  -0.02,-137.05) (  -0.92,-141.01)  451.89                80
 04/22/2021   03:55:30   (  -0.01,-137.03) (  -0.30,-138.14)  127.35                80