Simultaneous Nadir Overpasses (SNOs) between GOES-15 and NOAA-19
TLE Epoch: 2021 6 16.  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)
 06/16/2021   03:12:06   (   0.09,-128.41) (   0.80,-125.30)  354.98                80
 06/18/2021   15:32:49   (  -0.10,-128.46) (   0.33,-130.20)  199.49                80
 06/19/2021   15:23:45   (  -0.10,-128.45) (  -0.34,-127.34)  126.94                80
 06/20/2021   15:12:00   (  -0.10,-128.44) (  -1.02,-124.47)  453.19                80
 06/22/2021   03:44:45   (   0.11,-128.36) (  -0.79,-132.31)  450.23                80
 06/23/2021   03:33:00   (   0.11,-128.34) (  -0.13,-129.44)  124.89                80
 06/24/2021   03:18:36   (   0.11,-128.32) (   0.54,-126.57)  200.30                80
 06/26/2021   15:39:17   (  -0.12,-128.32) (   0.62,-131.46)  358.24                80
 06/27/2021   15:27:32   (  -0.13,-128.31) (  -0.06,-128.59)   32.94                80
 06/28/2021   15:18:28   (  -0.13,-128.29) (  -0.73,-125.73)  292.33                80