Simultaneous Nadir Overpasses (SNOs) between GOES-15 and NOAA-19
TLE Epoch: 2021 9 30.  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)
 10/02/2021   03:47:56   (   0.18,-127.72) (  -0.35,-129.87)  246.67                80
 10/03/2021   03:38:51   (   0.17,-127.75) (   0.33,-127.00)   85.27                80
 10/04/2021   03:27:05   (   0.16,-127.79) (   1.01,-124.13)  417.14                80
 10/05/2021   15:56:55   (  -0.21,-127.85) (   0.75,-131.92)  464.95                80
 10/06/2021   15:45:10   (  -0.20,-127.89) (   0.06,-129.05)  133.08                80
 10/07/2021   15:36:04   (  -0.19,-127.92) (  -0.58,-126.18)  198.58                80
 10/10/2021   03:54:16   (   0.22,-127.98) (  -0.52,-131.12)  359.24                80
 10/11/2021   03:42:31   (   0.21,-128.00) (   0.16,-128.25)   28.44                80
 10/12/2021   03:33:25   (   0.20,-128.03) (   0.84,-125.39)  302.17                80