Simultaneous Nadir Overpasses (SNOs) between GOES-15 and NOAA-19
TLE Epoch: 2021 6 6.  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   03:31:49   (   0.05,-128.44) (   0.00,-129.83)  154.53                80
 06/07/2021   03:17:21   (   0.05,-128.44) (   0.41,-126.90)  175.88                80
 06/09/2021   15:38:05   (  -0.06,-128.52) (   0.73,-131.81)  376.28                80
 06/10/2021   15:26:21   (  -0.06,-128.52) (   0.06,-128.94)   49.10                80
 06/11/2021   15:17:16   (  -0.06,-128.51) (  -0.61,-126.07)  278.01                80
 06/14/2021   03:38:15   (   0.08,-128.43) (  -0.52,-131.04)  297.98                80
 06/15/2021   03:23:51   (   0.08,-128.42) (   0.14,-128.17)   28.31                80
 06/16/2021   03:12:06   (   0.08,-128.41) (   0.79,-125.30)  354.58                80
 06/18/2021   15:32:49   (  -0.09,-128.45) (   0.33,-130.20)  200.33                80
 06/19/2021   15:23:45   (  -0.09,-128.44) (  -0.34,-127.34)  125.94                80