Simultaneous Nadir Overpasses (SNOs) between GOES-15 and NOAA-19
TLE Epoch: 2021 8 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)
 08/30/2021   03:37:03   (  -0.07,-128.26) (   0.06,-127.83)   50.80                80
 08/31/2021   03:25:16   (  -0.09,-128.26) (   0.67,-124.94)  378.37                80
 09/02/2021   15:43:27   (   0.03,-128.24) (   0.38,-129.89)  187.41                80
 09/03/2021   15:34:21   (   0.04,-128.23) (  -0.22,-127.00)  139.80                80
 09/04/2021   15:22:35   (   0.05,-128.22) (  -0.89,-124.13)  467.00                80
 09/06/2021   03:52:29   (   0.02,-128.22) (  -0.82,-131.94)  424.52                80
 09/07/2021   03:40:43   (   0.01,-128.21) (  -0.21,-129.06)   97.71                80
 09/08/2021   03:31:37   (  -0.00,-128.19) (   0.46,-126.19)  228.98                80
 09/10/2021   15:49:47   (  -0.05,-128.15) (   0.63,-131.12)  339.79                80
 09/11/2021   15:38:01   (  -0.04,-128.13) (   0.01,-128.24)   13.47                80
 09/12/2021   15:28:55   (  -0.02,-128.11) (  -0.67,-125.37)  312.88                80