Simultaneous Nadir Overpasses (SNOs) between GOES-15 and NOAA-19
TLE Epoch: 2021 9 3.  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)
 09/03/2021   15:34:21   (   0.04,-128.23) (  -0.22,-127.00)  140.09                80
 09/04/2021   15:22:35   (   0.05,-128.23) (  -0.89,-124.13)  467.33                80
 09/06/2021   03:52:29   (   0.02,-128.22) (  -0.83,-131.94)  424.01                80
 09/07/2021   03:40:43   (   0.01,-128.21) (  -0.22,-129.06)   97.16                80
 09/08/2021   03:31:37   (  -0.00,-128.20) (   0.45,-126.19)  229.61                80
 09/10/2021   15:49:47   (  -0.05,-128.15) (   0.65,-131.12)  339.08                80
 09/11/2021   15:38:02   (  -0.03,-128.14) (  -0.03,-128.25)   12.74                80
 09/12/2021   15:28:55   (  -0.02,-128.12) (  -0.65,-125.37)  313.67                80
 09/15/2021   03:47:03   (   0.07,-128.08) (  -0.47,-130.29)  252.94                80
 09/16/2021   03:37:58   (   0.06,-128.06) (   0.20,-127.42)   72.51                80