Simultaneous Nadir Overpasses (SNOs) between GOES-18 and NOAA-21
TLE Epoch: 2025 3 5.  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)
 03/05/2025   22:40:46   (   0.00,-137.00) (  -0.46,-139.14)  243.42                80
 03/06/2025   22:24:42   (   0.01,-137.00) (   0.56,-134.61)  272.27                80
 03/08/2025   10:43:49   (  -0.01,-136.99) (   0.61,-139.88)  329.49                80
 03/09/2025   10:27:44   (  -0.02,-136.98) (  -0.36,-135.34)  186.00                80
 03/10/2025   22:47:01   (   0.02,-136.97) (  -0.80,-140.65)  420.27                80
 03/11/2025   22:30:56   (   0.02,-136.96) (   0.22,-136.13)   95.28                80
 03/14/2025   10:33:58   (  -0.02,-136.94) (  -0.04,-136.86)    8.96                80
 03/16/2025   22:34:30   (   0.02,-136.91) (  -0.12,-137.64)   82.47                80
 03/17/2025   22:18:25   (   0.02,-136.90) (   0.86,-133.10)  432.47                80
 03/19/2025   10:37:32   (  -0.03,-136.87) (   0.29,-138.37)  170.68                80