Simultaneous Nadir Overpasses (SNOs) between GOES-17 and NOAA-19
TLE Epoch: 2021 4 1.  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)
 04/01/2021   15:44:52   (   0.01,-137.21) (  -0.16,-136.36)   96.41                80
 04/02/2021   15:33:09   (   0.01,-137.21) (  -0.87,-133.51)  422.34                80
 04/04/2021   04:08:28   (  -0.02,-137.18) (  -0.97,-141.32)  472.67                80
 04/05/2021   03:56:45   (  -0.02,-137.17) (  -0.29,-138.46)  146.85                80
 04/06/2021   03:42:20   (  -0.02,-137.16) (   0.32,-135.58)  179.01                80
 04/08/2021   16:05:52   (   0.02,-137.14) (   0.81,-140.52)  385.54                80
 04/09/2021   15:54:09   (   0.02,-137.13) (   0.15,-137.65)   60.00                80
 04/10/2021   15:39:45   (   0.02,-137.12) (  -0.51,-134.79)  265.46                80
 04/13/2021   04:00:39   (  -0.02,-137.06) (  -0.64,-139.73)  304.44                80
 04/14/2021   03:51:36   (  -0.02,-137.05) (   0.03,-136.87)   20.66                80