Simultaneous Nadir Overpasses (SNOs) between GOES-15 and NOAA-19
TLE Epoch: 2021 6 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)
 06/09/2021   15:38:06   (  -0.06,-128.52) (   0.71,-131.81)  376.45                80
 06/10/2021   15:26:21   (  -0.06,-128.51) (   0.04,-128.95)   49.25                80
 06/11/2021   15:17:17   (  -0.07,-128.51) (  -0.63,-126.08)  277.73                80
 06/14/2021   03:38:16   (   0.08,-128.43) (  -0.50,-131.05)  298.16                80
 06/15/2021   03:23:51   (   0.08,-128.42) (   0.16,-128.18)   28.23                80
 06/16/2021   03:12:07   (   0.08,-128.41) (   0.82,-125.31)  354.34                80
 06/18/2021   15:32:50   (  -0.09,-128.45) (   0.31,-130.21)  200.85                80
 06/19/2021   15:23:45   (  -0.09,-128.44) (  -0.37,-127.34)  125.41                80
 06/20/2021   15:12:00   (  -0.09,-128.42) (  -0.98,-124.47)  451.48                80