Simultaneous Nadir Overpasses (SNOs) between GOES-18 and NOAA-21
TLE Epoch: 2024 6 17.  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)
 06/18/2024   22:17:41   (   0.01,-137.02) (   0.93,-133.07)  450.35                80
 06/20/2024   10:39:31   (  -0.02,-137.03) (   0.26,-138.34)  149.41                80
 06/21/2024   10:18:07   (  -0.03,-137.03) (  -0.75,-133.82)  366.49                80
 06/22/2024   22:40:06   (   0.03,-137.02) (  -0.44,-139.12)  239.98                80
 06/23/2024   22:24:02   (   0.03,-137.01) (   0.57,-134.59)  275.56                80
 06/25/2024   10:45:51   (  -0.04,-137.01) (   0.60,-139.86)  325.39                80
 06/26/2024   10:27:08   (  -0.04,-137.00) (  -0.41,-135.34)  189.93                80
 06/27/2024   22:46:26   (   0.04,-136.98) (  -0.78,-140.64)  417.34                80
 06/28/2024   22:30:23   (   0.04,-136.97) (   0.24,-136.12)   97.83                80
 07/01/2024   10:33:29   (  -0.05,-136.95) (  -0.10,-136.86)   11.27                80