Simultaneous Nadir Overpasses (SNOs) between GOES-17 and NOAA-21
TLE Epoch: 2024 12 15.  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)
 12/15/2024   08:19:25   (   0.02,-104.70) (  -0.17,-103.77)  106.45                80
 12/17/2024   20:25:13   (  -0.00,-104.66) (   0.03,-104.53)   14.64                80
 12/20/2024   08:28:14   (  -0.01,-104.71) (   0.10,-105.28)   63.91                80
 12/21/2024   08:06:48   (  -0.01,-104.71) (  -0.89,-100.73)  452.88                80
 12/22/2024   20:28:42   (   0.01,-104.67) (  -0.27,-106.04)  154.76                80
 12/23/2024   20:12:36   (   0.02,-104.68) (   0.72,-101.50)  362.77                80
 12/25/2024   08:34:22   (  -0.01,-104.74) (   0.44,-106.77)  231.24                80
 12/26/2024   08:12:55   (  -0.01,-104.74) (  -0.56,-102.23)  285.73                80
 12/27/2024   20:34:49   (   0.00,-104.69) (  -0.64,-107.52)  322.70                80
 12/28/2024   20:18:42   (   0.00,-104.69) (   0.36,-102.98)  194.63                80