Simultaneous Nadir Overpasses (SNOs) between GOES-18 and NOAA-21
TLE Epoch: 2025 9 26.  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)
 09/27/2025   10:37:36   (  -0.01,-136.99) (   0.28,-138.42)  161.67                80
 09/28/2025   10:18:50   (  -0.01,-136.99) (  -0.68,-133.87)  354.44                80
 09/29/2025   22:40:45   (   0.00,-136.98) (  -0.47,-139.18)  250.15                80
 09/30/2025   22:24:39   (   0.01,-136.97) (   0.55,-134.64)  265.33                80
 10/02/2025   10:46:26   (  -0.02,-136.94) (   0.64,-139.90)  337.59                80
 10/03/2025   10:25:00   (  -0.02,-136.92) (  -0.38,-135.37)  177.73                80
 10/04/2025   22:46:55   (   0.01,-136.91) (  -0.81,-140.66)  427.68                80
 10/05/2025   22:30:48   (   0.01,-136.89) (   0.15,-136.12)   87.62                80
 10/08/2025   10:31:08   (   0.01,-136.83) (   0.04,-136.83)    3.01                80