Simultaneous Nadir Overpasses (SNOs) between GOES-15 and NOAA-19
TLE Epoch: 2021 6 29.  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)
 07/01/2021   03:39:27   (   0.15,-128.20) (  -0.44,-130.69)  284.46                80
 07/02/2021   03:25:03   (   0.15,-128.18) (   0.24,-127.82)   40.51                80
 07/03/2021   03:13:18   (   0.15,-128.15) (   0.92,-124.96)  365.43                80
 07/05/2021   15:33:58   (  -0.16,-128.15) (   0.27,-129.84)  193.42                80
 07/06/2021   15:24:54   (  -0.16,-128.12) (  -0.41,-126.97)  131.20                80
 07/07/2021   15:13:09   (  -0.16,-128.10) (  -1.09,-124.11)  455.63                80
 07/09/2021   03:45:54   (   0.17,-128.00) (  -0.73,-131.94)  449.30                80
 07/10/2021   03:34:08   (   0.17,-127.97) (  -0.10,-129.06)  125.54                80
 07/11/2021   03:19:44   (   0.18,-127.93) (   0.59,-126.20)  198.09                80