Simultaneous Nadir Overpasses (SNOs) between GOES-18 and NOAA-21
TLE Epoch: 2024 1 16.  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)
 01/17/2024   10:44:50   (   0.00,-137.01) (   0.68,-139.90)  330.81                80
 01/18/2024   10:23:26   (   0.01,-137.01) (  -0.38,-135.38)  186.04                80
 01/19/2024   22:48:00   (  -0.01,-136.99) (  -0.85,-140.67)  419.33                80
 01/20/2024   22:29:15   (  -0.01,-136.99) (   0.16,-136.13)   96.98                80
 01/23/2024   10:32:15   (   0.01,-136.98) (   0.00,-136.86)   13.56                80
 01/25/2024   22:32:45   (  -0.01,-136.94) (  -0.14,-137.62)   77.41                80
 01/26/2024   22:16:39   (  -0.01,-136.93) (   0.83,-133.08)  438.46                80
 01/28/2024   10:35:45   (   0.01,-136.93) (   0.34,-138.34)  161.64                80
 01/29/2024   10:19:40   (   0.01,-136.91) (  -0.69,-133.81)  354.06                80