Simultaneous Nadir Overpasses (SNOs) between GOES-15 and NOAA-19
TLE Epoch: 2021 6 22.  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)
 06/23/2021   03:33:00   (   0.11,-128.35) (  -0.13,-129.43)  124.19                80
 06/24/2021   03:18:36   (   0.12,-128.33) (   0.53,-126.57)  201.21                80
 06/26/2021   15:39:17   (  -0.13,-128.35) (   0.57,-131.47)  355.41                80
 06/27/2021   15:27:32   (  -0.13,-128.33) (  -0.05,-128.59)   29.98                80
 06/28/2021   15:18:27   (  -0.14,-128.32) (  -0.73,-125.72)  295.66                80
 07/01/2021   03:39:27   (   0.15,-128.21) (  -0.44,-130.69)  283.06                80
 07/02/2021   03:25:03   (   0.15,-128.19) (   0.24,-127.82)   42.19                80
 07/03/2021   03:13:17   (   0.15,-128.17) (   0.86,-124.95)  367.38                80
 07/05/2021   15:33:58   (  -0.15,-128.17) (   0.26,-129.84)  191.03                80
 07/06/2021   15:24:54   (  -0.15,-128.15) (  -0.42,-126.97)  133.88                80