Simultaneous Nadir Overpasses (SNOs) between GOES-17 and NOAA-21
TLE Epoch: 2024 1 8.  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)
 01/09/2024   08:10:21   (   0.00,-104.68) (  -0.54,-102.14)  288.48                80
 01/10/2024   20:32:17   (  -0.01,-104.66) (  -0.61,-107.45)  318.06                80
 01/11/2024   20:16:12   (  -0.01,-104.65) (   0.39,-102.91)  198.59                80
 01/13/2024   08:37:59   (   0.02,-104.67) (   0.78,-108.18)  399.08                80
 01/14/2024   08:16:34   (   0.02,-104.67) (  -0.22,-103.64)  117.46                80
 01/15/2024   20:38:29   (  -0.02,-104.65) (  -0.97,-108.94)  489.01                80
 01/16/2024   20:22:24   (  -0.02,-104.65) (   0.03,-104.40)   27.91                80
 01/19/2024   08:25:25   (   0.02,-104.68) (   0.13,-105.13)   52.21                80
 01/20/2024   08:04:00   (   0.02,-104.68) (  -0.88,-100.60)  464.49                80
 01/21/2024   20:25:55   (  -0.02,-104.65) (  -0.31,-105.90)  142.01                80