Simultaneous Nadir Overpasses (SNOs) between GOES-17 and NOAA-19
TLE Epoch: 2021 4 21.  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)
 04/21/2021   04:10:10   (  -0.03,-137.20) (   0.00,-141.22)  447.89                80
 04/22/2021   03:58:11   (  -0.03,-137.20) (  -0.26,-138.15)  108.38                80
 04/23/2021   03:43:47   (  -0.03,-137.20) (   0.42,-135.29)  218.63                80
 04/25/2021   16:07:21   (   0.03,-137.20) (   0.72,-140.23)  345.03                80
 04/26/2021   15:55:38   (   0.03,-137.20) (   0.05,-137.37)   18.72                80
 04/27/2021   15:41:13   (   0.03,-137.19) (  -0.57,-134.49)  307.66                80
 04/30/2021   04:04:45   (  -0.02,-137.16) (  -0.57,-139.42)  259.45                80
 05/01/2021   03:50:21   (  -0.02,-137.14) (   0.11,-136.56)   66.01                80
 05/02/2021   03:38:38   (  -0.02,-137.13) (   0.79,-133.70)  391.35                80
 05/04/2021   15:59:31   (   0.01,-137.10) (   0.40,-138.63)  176.29                80