Simultaneous Nadir Overpasses (SNOs) between GOES-15 and NOAA-19
TLE Epoch: 2021 10 10.  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)
 10/10/2021   03:54:17   (   0.22,-128.00) (  -0.48,-131.13)  356.23                80
 10/11/2021   03:42:30   (   0.21,-128.03) (   0.15,-128.25)   25.00                80
 10/12/2021   03:33:25   (   0.20,-128.06) (   0.83,-125.38)  306.05                80
 10/14/2021   15:51:27   (  -0.23,-128.13) (   0.27,-130.28)  245.69                80
 10/15/2021   15:42:20   (  -0.22,-128.16) (  -0.38,-127.41)   85.34                80
 10/16/2021   15:30:35   (  -0.22,-128.18) (  -1.09,-124.54)  416.42                80
 10/18/2021   04:00:35   (   0.26,-128.22) (  -0.70,-132.36)  473.29                80
 10/19/2021   03:48:49   (   0.25,-128.24) (  -0.07,-129.48)  142.46                80
 10/20/2021   03:39:43   (   0.24,-128.27) (   0.62,-126.62)  188.35                80
 10/22/2021   15:57:43   (  -0.27,-128.33) (   0.47,-131.51)  363.48                80
 10/23/2021   15:45:57   (  -0.25,-128.35) (  -0.18,-128.63)   32.96                80