Simultaneous Nadir Overpasses (SNOs) between GOES-15 and NOAA-19
TLE Epoch: 2021 6 12.  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)
 06/14/2021   03:38:16   (   0.08,-128.43) (  -0.50,-131.04)  297.85                80
 06/15/2021   03:23:51   (   0.08,-128.42) (   0.16,-128.18)   28.48                80
 06/16/2021   03:12:07   (   0.08,-128.41) (   0.81,-125.31)  354.68                80
 06/18/2021   15:32:50   (  -0.09,-128.45) (   0.32,-130.21)  200.58                80
 06/19/2021   15:23:45   (  -0.09,-128.44) (  -0.35,-127.34)  125.65                80
 06/20/2021   15:12:01   (  -0.09,-128.43) (  -1.03,-124.47)  451.75                80
 06/22/2021   03:44:44   (   0.10,-128.35) (  -0.84,-132.30)  451.59                80
 06/23/2021   03:32:59   (   0.10,-128.33) (  -0.18,-129.43)  126.43                80
 06/24/2021   03:18:35   (   0.10,-128.31) (   0.49,-126.56)  198.60                80