Simultaneous Nadir Overpasses (SNOs) between GOES-15 and NOAA-19
TLE Epoch: 2021 5 20.  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)
 05/20/2021   03:30:31   (  -0.02,-128.21) (   0.00,-130.17)  218.08                80
 05/21/2021   03:15:59   (  -0.02,-128.23) (   0.22,-127.20)  117.47                80
 05/22/2021   03:04:15   (  -0.03,-128.25) (   0.86,-124.33)  446.83                80
 05/23/2021   15:36:50   (   0.02,-128.36) (   0.87,-132.14)  430.22                80
 05/24/2021   15:25:06   (   0.02,-128.38) (   0.22,-129.27)  100.91                80
 05/25/2021   15:16:01   (   0.02,-128.40) (  -0.44,-126.40)  228.13                80
 05/28/2021   03:36:56   (  -0.01,-128.35) (  -0.71,-131.35)  342.56                80
 05/29/2021   03:25:13   (  -0.01,-128.36) (  -0.01,-128.49)   14.73                80
 05/30/2021   03:10:48   (  -0.01,-128.36) (   0.63,-125.62)  313.50                80
 06/01/2021   15:31:36   (  -0.01,-128.47) (   0.49,-130.54)  236.97                80
 06/02/2021   15:22:31   (  -0.00,-128.48) (  -0.17,-127.67)   91.54                80