Simultaneous Nadir Overpasses (SNOs) between GOES-15 and NOAA-19
TLE Epoch: 2021 6 11.  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)
 06/11/2021   15:17:17   (  -0.07,-128.51) (  -0.66,-126.08)  277.77                80
 06/14/2021   03:38:15   (   0.08,-128.43) (  -0.53,-131.04)  297.96                80
 06/15/2021   03:23:51   (   0.08,-128.42) (   0.13,-128.17)   28.34                80
 06/16/2021   03:12:06   (   0.08,-128.41) (   0.79,-125.30)  354.53                80
 06/18/2021   15:32:50   (  -0.09,-128.45) (   0.29,-130.21)  200.82                80
 06/19/2021   15:23:45   (  -0.09,-128.44) (  -0.33,-127.33)  125.45                80
 06/20/2021   15:12:00   (  -0.09,-128.43) (  -1.00,-124.47)  451.51                80
 06/22/2021   03:44:44   (   0.10,-128.34) (  -0.81,-132.30)  451.83                80
 06/23/2021   03:33:00   (   0.10,-128.33) (  -0.14,-129.44)  126.66                80
 06/24/2021   03:18:36   (   0.10,-128.30) (   0.52,-126.57)  198.33                80