Simultaneous Nadir Overpasses (SNOs) between GOES-15 and NOAA-19
TLE Epoch: 2021 5 15.  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)
 05/15/2021   15:30:18   (   0.04,-128.19) (   0.66,-130.85)  303.99                80
 05/16/2021   15:21:13   (   0.04,-128.21) (   0.01,-127.98)   26.04                80
 05/17/2021   15:09:30   (   0.04,-128.24) (  -0.69,-125.12)  355.59                80
 05/20/2021   03:30:23   (  -0.03,-128.20) (  -0.49,-130.06)  212.26                80
 05/21/2021   03:15:59   (  -0.03,-128.22) (   0.20,-127.20)  116.94                80
 05/22/2021   03:04:16   (  -0.04,-128.24) (   0.90,-124.34)  446.07                80
 05/23/2021   15:36:50   (   0.03,-128.35) (   0.89,-132.13)  431.83                80
 05/24/2021   15:25:05   (   0.03,-128.37) (   0.24,-129.27)  102.75                80
 05/25/2021   15:16:01   (   0.03,-128.38) (  -0.41,-126.40)  226.08                80
 05/28/2021   03:36:56   (  -0.02,-128.33) (  -0.74,-131.34)  344.57                80