Simultaneous Nadir Overpasses (SNOs) between GOES-18 and NOAA-21
TLE Epoch: 2025 1 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)
 01/06/2025   22:31:33   (   0.00,-137.00) (   0.19,-136.18)   93.35                80
 01/09/2025   10:31:50   (   0.02,-136.98) (   0.03,-136.89)   10.04                80
 01/11/2025   22:34:56   (  -0.01,-136.95) (  -0.15,-137.65)   79.29                80
 01/12/2025   22:18:48   (  -0.01,-136.93) (   0.84,-133.10)  436.62                80
 01/14/2025   10:40:33   (   0.01,-136.91) (   0.34,-138.36)  165.12                80
 01/15/2025   10:19:05   (   0.01,-136.90) (  -0.66,-133.82)  350.66                80
 01/16/2025   22:40:57   (  -0.01,-136.87) (  -0.49,-139.11)  254.58                80
 01/17/2025   22:24:50   (  -0.01,-136.86) (   0.52,-134.57)  261.20                80
 01/19/2025   10:46:33   (   0.00,-136.83) (   0.70,-139.82)  340.64                80
 01/20/2025   10:25:06   (   0.00,-136.82) (  -0.31,-135.28)  174.90                80