Simultaneous Nadir Overpasses (SNOs) between GOES-15 and NOAA-19
TLE Epoch: 2021 4 8.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  NOAA-19 Lat/Lon    Distance(km)  Time Diff(sec)
 04/09/2021   03:09:14   (  -0.12,-128.12) (   0.23,-126.50)  184.12                80
 04/11/2021   15:30:07   (   0.12,-128.17) (   0.88,-131.45)  374.29                80
 04/12/2021   15:18:23   (   0.12,-128.15) (   0.21,-128.58)   50.00                80
 04/13/2021   15:04:00   (   0.11,-128.12) (  -0.45,-125.72)  274.13                80
 04/16/2021   03:24:53   (  -0.11,-127.95) (  -0.73,-130.65)  308.26                80
 04/17/2021   03:15:49   (  -0.10,-127.92) (  -0.05,-127.79)   15.63                80
 04/18/2021   03:04:05   (  -0.10,-127.89) (   0.57,-124.92)  339.02                80
 04/20/2021   15:24:58   (   0.10,-127.91) (   0.56,-129.86)  223.20                80
 04/21/2021   15:10:35   (   0.10,-127.87) (  -0.11,-127.00)   99.86                80