Simultaneous Nadir Overpasses (SNOs) between GOES-15 and NOAA-19
TLE Epoch: 2021 9 1.  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)
 09/02/2021   15:43:26   (   0.03,-128.24) (   0.42,-129.88)  187.28                80
 09/03/2021   15:34:21   (   0.04,-128.23) (  -0.24,-127.01)  139.90                80
 09/04/2021   15:22:36   (   0.05,-128.22) (  -0.91,-124.14)  467.12                80
 09/06/2021   03:52:29   (   0.02,-128.22) (  -0.86,-131.93)  424.33                80
 09/07/2021   03:40:43   (   0.01,-128.21) (  -0.19,-129.06)   97.49                80
 09/08/2021   03:31:38   (  -0.00,-128.20) (   0.48,-126.19)  229.21                80
 09/10/2021   15:49:48   (  -0.05,-128.15) (   0.61,-131.13)  339.57                80
 09/11/2021   15:38:01   (  -0.04,-128.13) (  -0.01,-128.25)   13.02                80
 09/12/2021   15:28:56   (  -0.02,-128.11) (  -0.69,-125.38)  313.15                80