Simultaneous Nadir Overpasses (SNOs) between GOES-15 and NOAA-19
TLE Epoch: 2021 6 24.  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)
 06/24/2021   03:19:47   (   0.12,-128.33) (   0.53,-126.57)  201.14                 8
 06/26/2021   15:39:17   (  -0.13,-128.35) (   0.58,-131.47)  355.40                80
 06/27/2021   15:27:33   (  -0.13,-128.33) (  -0.10,-128.60)   30.02                80
 06/28/2021   15:18:27   (  -0.14,-128.32) (  -0.72,-125.72)  295.64                80
 07/01/2021   03:39:27   (   0.15,-128.21) (  -0.44,-130.69)  283.26                80
 07/02/2021   03:25:03   (   0.15,-128.19) (   0.24,-127.82)   41.97                80
 07/03/2021   03:13:18   (   0.15,-128.17) (   0.92,-124.96)  367.15                80
 07/05/2021   15:33:59   (  -0.15,-128.17) (   0.21,-129.85)  191.14                80
 07/06/2021   15:24:54   (  -0.15,-128.15) (  -0.42,-126.97)  133.78                80
 07/07/2021   15:13:09   (  -0.16,-128.12) (  -1.10,-124.11)  458.50                80