Simultaneous Nadir Overpasses (SNOs) between GOES-17 and NOAA-20
TLE Epoch: 2019 8 21.  Predictions up to the next  14.0 days:

     Date     Time(GOES-17)   GOES-17 Lat/Lon  NOAA-20 Lat/Lon    Distance(km)  Time Diff(sec)
 08/21/2019   22:47:27   (   0.03,-137.20) (   0.00,-140.69)  388.08                 0
 08/22/2019   22:29:50   (   0.03,-137.21) (   0.30,-136.00)  137.60                80
 08/24/2019   10:51:36   (  -0.03,-137.21) (   0.89,-141.26)  462.43                80
 08/25/2019   10:30:11   (  -0.04,-137.21) (  -0.11,-136.73)   53.91                80
 08/27/2019   22:33:21   (   0.04,-137.19) (  -0.02,-137.51)   35.73                80
 08/28/2019   22:17:16   (   0.04,-137.18) (   0.99,-132.97)  479.99                80
 08/30/2019   10:39:02   (  -0.04,-137.17) (   0.20,-138.23)  121.59                80
 08/31/2019   10:17:37   (  -0.04,-137.16) (  -0.81,-133.70)  393.88                80
 09/01/2019   22:39:32   (   0.04,-137.14) (  -0.38,-139.00)  212.45                80
 09/02/2019   22:23:27   (   0.04,-137.12) (   0.62,-134.46)  302.82                80
 09/04/2019   10:45:13   (  -0.04,-137.10) (   0.57,-139.73)  299.56                80