Simultaneous Nadir Overpasses (SNOs) between GOES-18 and NOAA-21
TLE Epoch: 2025 9 4.  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)
 09/06/2025   10:34:14   (  -0.03,-136.91) (   0.00,-136.96)    6.56                80
 09/08/2025   22:34:44   (   0.02,-136.87) (  -0.18,-137.72)   97.24                80
 09/09/2025   22:18:38   (   0.02,-136.86) (   0.82,-133.19)  417.45                80
 09/11/2025   10:40:26   (  -0.03,-136.82) (   0.32,-138.47)  187.19                80
 09/12/2025   10:19:01   (  -0.03,-136.79) (  -0.68,-133.93)  326.77                80
 09/13/2025   22:40:55   (   0.03,-136.76) (  -0.53,-139.22)  281.07                80
 09/14/2025   22:24:50   (   0.03,-136.73) (   0.47,-134.68)  232.42                80
 09/16/2025   10:46:37   (  -0.04,-136.68) (   0.71,-139.95)  373.47                80
 09/17/2025   10:25:12   (  -0.04,-136.64) (  -0.30,-135.42)  139.80                80