Simultaneous Nadir Overpasses (SNOs) between GOES-17 and NOAA-21
TLE Epoch: 2023 11 2.  Predictions up to the next  14.0 days:

     Date     Time(GOES-17)   GOES-17 Lat/Lon  NOAA-21 Lat/Lon    Distance(km)  Time Diff(sec)
 11/03/2023   20:09:30   (   0.01,-104.66) (   0.75,-101.33)  379.37                80
 11/05/2023   08:31:20   (  -0.00,-104.68) (   0.41,-106.61)  220.21                80
 11/06/2023   08:09:57   (  -0.00,-104.67) (  -0.59,-102.08)  295.30                80
 11/07/2023   20:31:55   (   0.00,-104.65) (  -0.62,-107.39)  312.57                80
 11/08/2023   20:15:51   (   0.00,-104.65) (   0.39,-102.87)  203.41                80
 11/10/2023   08:37:42   (   0.00,-104.68) (   0.76,-108.15)  395.23                80
 11/11/2023   08:16:18   (   0.00,-104.68) (  -0.24,-103.62)  120.46                80
 11/12/2023   20:38:17   (  -0.00,-104.65) (  -0.94,-108.94)  487.86                80
 11/13/2023   20:22:13   (  -0.00,-104.65) (   0.07,-104.41)   28.00                80
 11/16/2023   08:25:19   (   0.01,-104.67) (   0.11,-105.16)   55.41                80