Simultaneous Nadir Overpasses (SNOs) between GOES-17 and NOAA-20
TLE Epoch: 2021 9 15.  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)
 09/15/2021   10:33:49   (   0.04,-137.21) (  -0.00,-137.01)   22.92                80
 09/17/2021   22:34:21   (  -0.03,-137.20) (  -0.13,-137.79)   66.61                80
 09/18/2021   22:18:15   (  -0.03,-137.20) (   0.85,-133.25)  449.84                80
 09/20/2021   10:37:22   (   0.02,-137.21) (   0.32,-138.52)  149.66                80
 09/21/2021   10:21:18   (   0.02,-137.21) (  -0.71,-133.99)  366.72                80
 09/22/2021   22:40:33   (  -0.02,-137.19) (  -0.51,-139.29)  239.32                80
 09/23/2021   22:24:29   (  -0.02,-137.19) (   0.53,-134.76)  276.81                80
 09/25/2021   10:43:36   (   0.02,-137.19) (   0.65,-140.03)  323.51                80
 09/26/2021   10:27:31   (   0.02,-137.18) (  -0.34,-135.49)  192.07                80
 09/27/2021   22:46:47   (  -0.02,-137.15) (  -0.83,-140.80)  415.42                80
 09/28/2021   22:30:41   (  -0.02,-137.14) (   0.16,-136.26)   99.65                80