Simultaneous Nadir Overpasses (SNOs) between GOES-18 and NOAA-21
TLE Epoch: 2025 1 13.  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)
 01/14/2025   10:40:33   (   0.03,-136.97) (   0.35,-138.36)  157.99                80
 01/15/2025   10:19:06   (   0.03,-136.96) (  -0.70,-133.83)  358.08                80
 01/16/2025   22:40:57   (  -0.04,-136.93) (  -0.53,-139.10)  248.22                80
 01/17/2025   22:24:50   (  -0.04,-136.92) (   0.47,-134.56)  267.92                80
 01/19/2025   10:46:34   (   0.04,-136.91) (   0.71,-139.82)  331.77                80
 01/20/2025   10:25:07   (   0.04,-136.90) (  -0.29,-135.28)  183.98                80
 01/21/2025   22:46:59   (  -0.04,-136.85) (  -0.87,-140.57)  423.36                80
 01/22/2025   22:30:52   (  -0.05,-136.83) (   0.13,-136.03)   92.07                80
 01/25/2025   10:31:08   (   0.06,-136.79) (   0.02,-136.74)    6.78                80