Simultaneous Nadir Overpasses (SNOs) between GOES-17 and NOAA-21
TLE Epoch: 2025 1 10.  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)
 01/11/2025   08:12:22   (   0.02,-104.70) (  -0.58,-102.12)  295.03                80
 01/12/2025   20:34:13   (  -0.02,-104.65) (  -0.65,-107.40)  313.37                80
 01/13/2025   20:18:07   (  -0.02,-104.65) (   0.40,-102.86)  204.54                80
 01/15/2025   08:39:51   (   0.02,-104.72) (   0.79,-108.12)  387.54                80
 01/16/2025   08:18:24   (   0.02,-104.73) (  -0.21,-103.58)  130.26                80
 01/17/2025   20:40:16   (  -0.02,-104.68) (  -0.96,-108.87)  477.91                80
 01/18/2025   20:24:09   (  -0.02,-104.69) (   0.04,-104.33)   40.56                80
 01/21/2025   08:27:06   (   0.02,-104.77) (   0.07,-105.05)   32.10                80
 01/22/2025   08:05:39   (   0.02,-104.78) (  -0.94,-100.51)  485.97                80
 01/23/2025   20:27:30   (  -0.02,-104.72) (  -0.27,-105.79)  122.32                80