Simultaneous Nadir Overpasses (SNOs) between GOES-17 and NOAA-20
TLE Epoch: 2021 10 20.  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)
 10/20/2021   22:18:03   (  -0.03,-137.19) (   0.87,-133.20)  454.71                80
 10/22/2021   10:37:10   (   0.03,-137.18) (   0.29,-138.47)  146.28                80
 10/23/2021   10:21:04   (   0.03,-137.17) (  -0.70,-133.93)  369.54                80
 10/24/2021   22:40:20   (  -0.03,-137.16) (  -0.50,-139.23)  236.73                80
 10/25/2021   22:24:14   (  -0.03,-137.14) (   0.50,-134.69)  278.60                80
 10/27/2021   10:43:22   (   0.02,-137.12) (   0.66,-139.97)  323.82                80
 10/28/2021   10:27:16   (   0.02,-137.11) (  -0.34,-135.43)  191.01                80
 10/29/2021   22:46:31   (  -0.01,-137.08) (  -0.85,-140.73)  416.63                80
 10/30/2021   22:30:27   (  -0.01,-137.06) (   0.20,-136.20)   98.00                80
 11/02/2021   10:30:48   (   0.01,-137.01) (   0.02,-136.92)    9.48                80