Simultaneous Nadir Overpasses (SNOs) between GOES-17 and NOAA-19
TLE Epoch: 2021 4 13.  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)
 04/14/2021   03:48:56   (  -0.02,-137.20) (   0.04,-136.87)   37.42                80
 04/15/2021   03:37:12   (  -0.02,-137.20) (   0.71,-134.00)  364.27                80
 04/17/2021   16:00:45   (   0.02,-137.19) (   0.45,-138.94)  199.78                80
 04/18/2021   15:46:22   (   0.02,-137.19) (  -0.21,-136.07)  126.38                80
 04/19/2021   15:34:38   (   0.01,-137.18) (  -0.88,-133.21)  452.29                80
 04/21/2021   04:09:55   (  -0.02,-137.15) (  -0.92,-141.01)  440.75                80
 04/22/2021   03:58:11   (  -0.02,-137.14) (  -0.24,-138.15)  115.07                80
 04/23/2021   03:43:48   (  -0.02,-137.13) (   0.44,-135.29)  210.53                80
 04/25/2021   16:07:21   (   0.02,-137.10) (   0.72,-140.23)  356.96                80
 04/26/2021   15:55:37   (   0.02,-137.08) (   0.10,-137.36)   32.02                80