Simultaneous Nadir Overpasses (SNOs) between GOES-15 and NOAA-19
TLE Epoch: 2021 6 10.  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)
 06/10/2021   15:26:21   (  -0.07,-128.51) (   0.06,-128.94)   49.31                80
 06/11/2021   15:17:17   (  -0.07,-128.51) (  -0.61,-126.07)  277.73                80
 06/14/2021   03:38:15   (   0.08,-128.43) (  -0.52,-131.04)  298.06                80
 06/15/2021   03:23:51   (   0.08,-128.42) (   0.14,-128.17)   28.18                80
 06/16/2021   03:12:06   (   0.08,-128.41) (   0.80,-125.30)  354.40                80
 06/18/2021   15:32:49   (  -0.09,-128.45) (   0.33,-130.20)  200.93                80
 06/19/2021   15:23:45   (  -0.09,-128.44) (  -0.34,-127.34)  125.29                80
 06/20/2021   15:12:00   (  -0.09,-128.42) (  -1.02,-124.47)  451.36                80
 06/22/2021   03:44:45   (   0.10,-128.34) (  -0.79,-132.31)  452.03                80
 06/23/2021   03:32:59   (   0.10,-128.32) (  -0.18,-129.43)  126.88                80