Simultaneous Nadir Overpasses (SNOs) between GOES-17 and NOAA-21
TLE Epoch: 2024 12 23.  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)
 12/23/2024   20:12:35   (   0.01,-104.67) (   0.69,-101.49)  361.87                80
 12/25/2024   08:34:21   (   0.01,-104.71) (   0.46,-106.76)  233.31                80
 12/26/2024   08:12:55   (   0.02,-104.71) (  -0.54,-102.22)  283.65                80
 12/27/2024   20:34:48   (  -0.02,-104.66) (  -0.66,-107.51)  324.54                80
 12/28/2024   20:18:42   (  -0.02,-104.66) (   0.34,-102.97)  192.46                80
 12/30/2024   08:40:28   (   0.02,-104.71) (   0.79,-108.25)  402.77                80
 12/31/2024   08:19:02   (   0.02,-104.70) (  -0.21,-103.71)  113.59                80
 01/01/2025   20:40:55   (  -0.01,-104.65) (  -0.96,-109.00)  495.81                80
 01/02/2025   20:24:48   (  -0.01,-104.65) (   0.05,-104.47)   21.01                80
 01/05/2025   08:27:47   (  -0.00,-104.69) (   0.12,-105.19)   56.91                80