Simultaneous Nadir Overpasses (SNOs) between GOES-18 and NOAA-21
TLE Epoch: 2025 3 6.  Predictions up to the next  14.0 days:

     Date     Time(GOES-18)   GOES-18 Lat/Lon  NOAA-21 Lat/Lon    Distance(km)  Time Diff(sec)
 03/06/2025   22:24:42   (  -0.01,-137.00) (   0.55,-134.61)  272.63                80
 03/08/2025   10:46:28   (   0.01,-136.99) (   0.67,-139.87)  328.91                80
 03/09/2025   10:25:04   (   0.01,-136.98) (  -0.35,-135.34)  186.54                80
 03/10/2025   22:47:01   (  -0.01,-136.97) (  -0.81,-140.65)  419.82                80
 03/11/2025   22:30:55   (  -0.00,-136.96) (   0.16,-136.11)   95.68                80
 03/14/2025   10:31:18   (   0.00,-136.94) (  -0.04,-136.86)    9.73                80
 03/16/2025   22:34:29   (  -0.00,-136.91) (  -0.18,-137.62)   82.25                80
 03/17/2025   22:18:25   (  -0.00,-136.89) (   0.86,-133.10)  432.70                80
 03/19/2025   10:40:11   (   0.00,-136.87) (   0.35,-138.36)  170.25                80
 03/20/2025   10:18:46   (   0.00,-136.85) (  -0.69,-133.83)  344.10                80