Simultaneous Nadir Overpasses (SNOs) between GOES-17 and NOAA-19
TLE Epoch: 2021 7 18.  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)
 07/18/2021   16:22:36   (   0.04,-137.21) (   0.98,-141.37)  473.75                80
 07/19/2021   16:10:51   (   0.04,-137.21) (   0.35,-138.49)  146.31                80
 07/20/2021   16:01:46   (   0.04,-137.21) (  -0.34,-135.63)  180.90                80
 07/23/2021   04:20:03   (  -0.03,-137.19) (  -0.83,-140.58)  387.71                80
 07/24/2021   04:08:18   (  -0.03,-137.18) (  -0.13,-137.72)   60.99                80
 07/25/2021   03:59:13   (  -0.03,-137.17) (   0.52,-134.85)  265.86                80
 07/27/2021   16:17:16   (   0.01,-137.16) (   0.63,-139.74)  295.20                80
 07/28/2021   16:08:11   (   0.00,-137.15) (  -0.06,-136.88)   31.34                80
 07/29/2021   15:56:27   (   0.00,-137.15) (  -0.75,-134.02)  357.88                80