Simultaneous Nadir Overpasses (SNOs) between GOES-17 and NOAA-19
TLE Epoch: 2021 6 18.  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)
 06/19/2021   04:17:48   (  -0.05,-137.19) (  -1.03,-141.31)  471.42                80
 06/20/2021   04:06:04   (  -0.05,-137.18) (  -0.37,-138.45)  144.72                80
 06/21/2021   03:57:00   (  -0.04,-137.18) (   0.35,-135.59)  181.85                80
 06/23/2021   16:15:02   (   0.03,-137.16) (   0.78,-140.49)  379.37                80
 06/24/2021   16:03:16   (   0.03,-137.14) (   0.16,-137.61)   53.67                80
 06/25/2021   15:54:12   (   0.02,-137.13) (  -0.51,-134.74)  272.00                80
 06/28/2021   04:15:12   (  -0.02,-137.08) (  -0.65,-139.71)  300.63                80
 06/29/2021   04:00:47   (  -0.02,-137.06) (   0.03,-136.84)   24.91                80
 06/30/2021   03:49:03   (  -0.02,-137.05) (   0.70,-133.98)  350.43                80