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)
 05/21/2021   03:15:59   (  -0.02,-128.23) (   0.20,-127.19)  117.45                80
 05/22/2021   03:04:15   (  -0.02,-128.25) (   0.89,-124.34)  446.84                80
 05/23/2021   15:36:50   (   0.01,-128.37) (   0.89,-132.13)  429.97                80
 05/24/2021   15:25:05   (   0.02,-128.39) (   0.24,-129.26)  100.64                80
 05/25/2021   15:16:02   (   0.02,-128.40) (  -0.47,-126.41)  228.49                80
 05/28/2021   03:36:57   (  -0.00,-128.35) (  -0.67,-131.35)  342.27                80
 05/29/2021   03:25:12   (  -0.00,-128.36) (  -0.04,-128.48)   14.15                80
 05/30/2021   03:10:49   (  -0.00,-128.37) (   0.66,-125.62)  313.93                80
 06/01/2021   15:31:37   (  -0.01,-128.47) (   0.45,-130.55)  236.25                80
 06/02/2021   15:22:32   (  -0.01,-128.48) (  -0.21,-127.68)   92.31                80