Simultaneous Nadir Overpasses (SNOs) between GOES-17 and NOAA-21
TLE Epoch: 2025 1 8.  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)
 01/08/2025   20:12:04   (  -0.01,-104.65) (   0.74,-101.40)  371.03                80
 01/10/2025   08:33:49   (   0.01,-104.70) (   0.45,-106.65)  222.17                80
 01/11/2025   08:12:22   (   0.01,-104.71) (  -0.60,-102.12)  295.29                80
 01/12/2025   20:34:14   (  -0.01,-104.66) (  -0.64,-107.40)  312.92                80
 01/13/2025   20:18:07   (  -0.01,-104.66) (   0.42,-102.87)  205.14                80
 01/15/2025   08:39:51   (   0.01,-104.73) (   0.76,-108.12)  386.89                80
 01/16/2025   08:18:24   (   0.01,-104.73) (  -0.24,-103.58)  131.03                80
 01/17/2025   20:40:16   (  -0.01,-104.69) (  -0.92,-108.88)  476.87                80
 01/18/2025   20:24:09   (  -0.00,-104.70) (   0.08,-104.33)   41.68                80
 01/21/2025   08:27:06   (   0.00,-104.78) (   0.07,-105.05)   30.65                80