Simultaneous Nadir Overpasses (SNOs) between GOES-15 and NOAA-19
TLE Epoch: 2021 9 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)
 09/10/2021   15:49:47   (  -0.05,-128.15) (   0.64,-131.12)  338.74                80
 09/11/2021   15:38:02   (  -0.03,-128.13) (  -0.03,-128.25)   13.12                80
 09/12/2021   15:28:55   (  -0.02,-128.11) (  -0.65,-125.37)  312.87                80
 09/15/2021   03:47:03   (   0.07,-128.06) (  -0.47,-130.29)  254.98                80
 09/16/2021   03:37:58   (   0.06,-128.03) (   0.20,-127.42)   69.88                80
 09/17/2021   03:26:12   (   0.05,-128.00) (   0.88,-124.55)  394.76                80
 09/19/2021   15:44:20   (  -0.10,-127.91) (   0.26,-129.47)  178.63                80
 09/20/2021   15:35:15   (  -0.10,-127.88) (  -0.42,-126.60)  146.50                80
 09/21/2021   15:23:28   (  -0.08,-127.85) (  -1.05,-123.72)  471.67                80
 09/23/2021   03:53:23   (   0.14,-127.83) (  -0.69,-131.53)  421.45                80