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)
 12/17/2024   20:25:13   (   0.01,-104.67) (   0.02,-104.53)   14.99                80
 12/20/2024   08:28:14   (  -0.01,-104.72) (   0.10,-105.27)   62.58                80
 12/21/2024   08:06:48   (  -0.01,-104.73) (  -0.88,-100.73)  454.66                80
 12/22/2024   20:28:42   (   0.02,-104.70) (  -0.27,-106.04)  152.46                80
 12/23/2024   20:12:35   (   0.02,-104.71) (   0.72,-101.49)  365.50                80
 12/25/2024   08:34:22   (  -0.02,-104.77) (   0.43,-106.77)  228.15                80
 12/26/2024   08:12:56   (  -0.02,-104.77) (  -0.62,-102.24)  289.14                80
 12/27/2024   20:34:50   (   0.03,-104.73) (  -0.57,-107.53)  319.18                80
 12/28/2024   20:18:43   (   0.03,-104.73) (   0.43,-102.99)  198.44                80