Simultaneous Nadir Overpasses (SNOs) between GOES-15 and NOAA-19
TLE Epoch: 2021 6 5.  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)
 06/06/2021   03:31:44   (   0.05,-128.44) (  -0.27,-129.76)  151.68                80
 06/07/2021   03:17:20   (   0.04,-128.44) (   0.38,-126.89)  175.87                80
 06/09/2021   15:38:06   (  -0.06,-128.52) (   0.71,-131.81)  376.09                80
 06/10/2021   15:26:21   (  -0.06,-128.52) (   0.04,-128.95)   48.81                80
 06/11/2021   15:17:17   (  -0.06,-128.52) (  -0.63,-126.08)  278.23                80
 06/14/2021   03:38:15   (   0.08,-128.43) (  -0.56,-131.03)  297.81                80
 06/15/2021   03:23:51   (   0.08,-128.42) (   0.16,-128.18)   28.64                80
 06/16/2021   03:12:07   (   0.08,-128.41) (   0.81,-125.31)  354.82                80
 06/18/2021   15:32:50   (  -0.09,-128.46) (   0.32,-130.21)  199.90                80