Simultaneous Nadir Overpasses (SNOs) between GOES-18 and NOAA-21
TLE Epoch: 2025 6 12.  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)
 06/13/2025   10:27:46   (  -0.01,-137.00) (  -0.35,-135.40)  181.76                80
 06/14/2025   22:47:03   (   0.00,-137.00) (  -0.85,-140.71)  422.77                80
 06/15/2025   22:31:00   (  -0.00,-137.00) (   0.19,-136.18)   93.23                80
 06/18/2025   10:34:04   (   0.01,-136.98) (  -0.00,-136.92)    6.71                80
 06/20/2025   22:34:37   (  -0.01,-136.96) (  -0.15,-137.71)   84.03                80
 06/21/2025   22:18:33   (  -0.01,-136.95) (   0.84,-133.17)  430.78                80
 06/23/2025   10:37:41   (  -0.00,-136.92) (   0.33,-138.45)  173.37                80
 06/24/2025   10:21:37   (  -0.00,-136.91) (  -0.66,-133.91)  340.88                80
 06/25/2025   22:40:54   (   0.01,-136.88) (  -0.54,-139.22)  266.91                80