Simultaneous Nadir Overpasses (SNOs) between GOES-15 and NOAA-19
TLE Epoch: 2021 6 13.  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   03:38:15   (   0.09,-128.43) (  -0.53,-131.04)  297.78                80
 06/15/2021   03:23:51   (   0.09,-128.42) (   0.13,-128.17)   28.60                80
 06/16/2021   03:12:06   (   0.09,-128.41) (   0.78,-125.30)  354.81                80
 06/18/2021   15:32:50   (  -0.10,-128.45) (   0.29,-130.21)  200.34                80
 06/19/2021   15:23:45   (  -0.09,-128.44) (  -0.32,-127.33)  125.97                80
 06/20/2021   15:12:00   (  -0.09,-128.43) (  -1.00,-124.47)  452.07                80
 06/22/2021   03:44:44   (   0.10,-128.35) (  -0.81,-132.30)  451.26                80
 06/23/2021   03:33:00   (   0.11,-128.33) (  -0.15,-129.43)  126.04                80
 06/24/2021   03:18:35   (   0.11,-128.31) (   0.52,-126.57)  198.98                80
 06/26/2021   15:39:17   (  -0.12,-128.31) (   0.60,-131.47)  360.28                80