Simultaneous Nadir Overpasses (SNOs) between GOES-17 and NOAA-21
TLE Epoch: 2024 12 13.  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)
 12/14/2024   08:40:51   (   0.00,-104.71) (   0.80,-108.31)  410.14                80
 12/15/2024   08:19:25   (   0.01,-104.70) (  -0.17,-103.76)  106.38                80
 12/17/2024   20:25:13   (  -0.02,-104.67) (   0.02,-104.53)   15.29                80
 12/20/2024   08:28:13   (   0.02,-104.72) (   0.16,-105.26)   62.61                80
 12/21/2024   08:06:48   (   0.02,-104.72) (  -0.88,-100.73)  454.39                80
 12/22/2024   20:28:41   (  -0.03,-104.68) (  -0.34,-106.02)  153.18                80
 12/23/2024   20:12:36   (  -0.03,-104.69) (   0.70,-101.49)  364.49                80
 12/25/2024   08:34:22   (   0.03,-104.75) (   0.46,-106.76)  229.39                80
 12/26/2024   08:12:55   (   0.03,-104.75) (  -0.53,-102.22)  287.71                80