Simultaneous Nadir Overpasses (SNOs) between GOES-17 and NOAA-19
TLE Epoch: 2021 6 16.  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)
 06/16/2021   15:59:29   (   0.04,-137.20) (  -0.14,-136.35)   96.47                80
 06/17/2021   15:47:45   (   0.04,-137.20) (  -0.81,-133.49)  423.62                80
 06/19/2021   04:17:49   (  -0.04,-137.19) (  -0.98,-141.33)  471.60                80
 06/20/2021   04:06:05   (  -0.04,-137.18) (  -0.31,-138.46)  144.96                80
 06/21/2021   03:57:00   (  -0.04,-137.18) (   0.35,-135.59)  181.50                80
 06/23/2021   16:15:02   (   0.03,-137.15) (   0.78,-140.49)  380.30                80
 06/24/2021   16:03:17   (   0.02,-137.14) (   0.10,-137.62)   54.74                80
 06/25/2021   15:54:12   (   0.01,-137.12) (  -0.51,-134.74)  270.88                80
 06/28/2021   04:15:12   (  -0.01,-137.07) (  -0.64,-139.71)  301.52                80
 06/29/2021   04:00:47   (  -0.00,-137.06) (   0.03,-136.84)   24.00                80