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)
 06/22/2021   03:44:45   (   0.11,-128.36) (  -0.78,-132.31)  449.68                80
 06/23/2021   03:33:00   (   0.11,-128.35) (  -0.11,-129.44)  124.11                80
 06/24/2021   03:18:35   (   0.12,-128.33) (   0.50,-126.56)  201.36                80
 06/26/2021   15:39:17   (  -0.13,-128.35) (   0.61,-131.46)  355.46                80
 06/27/2021   15:27:32   (  -0.13,-128.33) (  -0.07,-128.59)   29.91                80
 06/28/2021   15:18:28   (  -0.13,-128.32) (  -0.75,-125.73)  295.61                80
 07/01/2021   03:39:28   (   0.14,-128.21) (  -0.42,-130.69)  282.95                80
 07/02/2021   03:25:02   (   0.14,-128.19) (   0.20,-127.82)   42.40                80
 07/03/2021   03:13:18   (   0.14,-128.17) (   0.88,-124.95)  367.48                80
 07/05/2021   15:33:59   (  -0.15,-128.17) (   0.24,-129.84)  191.11                80