Simultaneous Nadir Overpasses (SNOs) between GOES-17 and NOAA-21
TLE Epoch: 2023 10 30.  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) (   0.09,-105.06)   43.23                80
 11/01/2023   08:03:35   (  -0.00,-104.68) (  -0.95,-100.55)  472.14                80
 11/02/2023   20:25:33   (   0.00,-104.66) (  -0.26,-105.85)  135.89                80
 11/03/2023   20:09:29   (  -0.00,-104.66) (   0.73,-101.33)  379.93                80
 11/05/2023   08:31:20   (   0.00,-104.69) (   0.42,-106.61)  218.95                80
 11/06/2023   08:09:56   (   0.00,-104.69) (  -0.57,-102.08)  296.80                80
 11/07/2023   20:31:55   (  -0.00,-104.66) (  -0.63,-107.39)  311.10                80
 11/08/2023   20:15:51   (  -0.00,-104.67) (   0.38,-102.86)  205.15                80
 11/10/2023   08:37:41   (   0.00,-104.70) (   0.77,-108.15)  392.76                80
 11/11/2023   08:16:18   (   0.00,-104.70) (  -0.24,-103.62)  123.24                80
 11/12/2023   20:38:16   (  -0.01,-104.68) (  -0.94,-108.94)  484.92                80