Simultaneous Nadir Overpasses (SNOs) between GOES-17 and NOAA-21
TLE Epoch: 2023 10 29.  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)
 10/31/2023   08:24:57   (  -0.00,-104.69) (   0.08,-105.07)   43.04                80
 11/01/2023   08:03:34   (  -0.00,-104.69) (  -0.91,-100.54)  472.39                80
 11/02/2023   20:25:33   (   0.00,-104.66) (  -0.25,-105.86)  135.74                80
 11/03/2023   20:09:30   (   0.00,-104.67) (   0.74,-101.33)  380.14                80
 11/05/2023   08:31:20   (   0.00,-104.69) (   0.42,-106.61)  218.49                80
 11/06/2023   08:09:57   (   0.00,-104.69) (  -0.58,-102.08)  297.32                80
 11/07/2023   20:31:55   (  -0.00,-104.67) (  -0.62,-107.39)  310.65                80
 11/08/2023   20:15:51   (  -0.00,-104.68) (   0.38,-102.87)  205.65                80
 11/10/2023   08:37:42   (   0.00,-104.71) (   0.77,-108.15)  392.06                80
 11/11/2023   08:16:18   (   0.00,-104.71) (  -0.23,-103.62)  124.00                80