Simultaneous Nadir Overpasses (SNOs) between GOES-17 and NOAA-19
TLE Epoch: 2021 6 20.  Predictions up to the next  14.0 days:

     Date     Time(GOES-17)   GOES-17 Lat/Lon  NOAA-19 Lat/Lon    Distance(km)  Time Diff(sec)
 06/21/2021   03:56:59   (  -0.05,-137.18) (   0.30,-135.58)  182.12                80
 06/23/2021   16:15:01   (   0.04,-137.16) (   0.83,-140.47)  378.42                80
 06/24/2021   16:03:17   (   0.04,-137.15) (   0.15,-137.61)   52.56                80
 06/25/2021   15:54:12   (   0.03,-137.14) (  -0.52,-134.74)  273.18                80
 06/28/2021   04:15:12   (  -0.02,-137.09) (  -0.64,-139.71)  299.51                80
 06/29/2021   04:00:48   (  -0.02,-137.07) (   0.03,-136.84)   26.13                80
 06/30/2021   03:49:03   (  -0.02,-137.06) (   0.71,-133.98)  351.77                80
 07/02/2021   16:09:44   (   0.02,-137.02) (   0.43,-138.87)  210.23                80
 07/03/2021   16:00:38   (   0.02,-137.00) (  -0.19,-135.99)  115.12                80