Simultaneous Nadir Overpasses (SNOs) between GOES-18 and NOAA-21
TLE Epoch: 2024 7 20.  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)
 07/20/2024   22:18:09   (   0.02,-137.00) (   0.89,-133.10)  444.68                80
 07/22/2024   10:39:57   (  -0.03,-136.99) (   0.28,-138.37)  156.24                80
 07/23/2024   10:18:33   (  -0.03,-136.99) (  -0.72,-133.83)  359.42                80
 07/24/2024   22:40:30   (   0.03,-136.97) (  -0.45,-139.14)  246.80                80
 07/25/2024   22:24:26   (   0.03,-136.96) (   0.56,-134.60)  268.81                80
 07/27/2024   10:43:34   (  -0.03,-136.95) (   0.59,-139.87)  332.65                80
 07/28/2024   10:27:29   (  -0.03,-136.94) (  -0.42,-135.34)  182.50                80
 07/29/2024   22:46:46   (   0.04,-136.91) (  -0.79,-140.64)  425.05                80
 07/30/2024   22:30:41   (   0.04,-136.89) (   0.23,-136.11)   89.65                80
 08/02/2024   10:33:44   (  -0.05,-136.85) (  -0.05,-136.83)    1.21                80