Simultaneous Nadir Overpasses (SNOs) between GOES-17 and NOAA-19
TLE Epoch: 2021 9 15.  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)
 09/15/2021   16:31:56   (  -0.01,-137.20) (   0.98,-141.41)  480.28                80
 09/16/2021   16:20:11   (  -0.02,-137.21) (   0.29,-138.54)  152.44                80
 09/17/2021   16:11:06   (  -0.02,-137.20) (  -0.39,-135.67)  175.37                80
 09/20/2021   04:29:13   (   0.02,-137.20) (  -0.77,-140.59)  387.09                80
 09/21/2021   04:17:28   (   0.02,-137.20) (  -0.10,-137.72)   59.40                80
 09/22/2021   04:08:22   (   0.02,-137.20) (   0.58,-134.85)  268.22                80
 09/24/2021   16:26:29   (  -0.02,-137.19) (   0.56,-139.77)  293.81                80
 09/25/2021   16:17:23   (  -0.02,-137.18) (  -0.07,-136.88)   33.48                80
 09/26/2021   16:05:37   (  -0.02,-137.17) (  -0.76,-134.02)  360.43                80