Simultaneous Nadir Overpasses (SNOs) between GOES-18 and NOAA-21
TLE Epoch: 2023 3 2.  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)
 03/03/2023   10:45:48   (  -0.01,-137.01) (   0.62,-139.87)  326.24                80
 03/04/2023   10:27:02   (  -0.01,-137.01) (  -0.36,-135.34)  189.73                80
 03/05/2023   22:46:18   (   0.02,-136.99) (  -0.81,-140.65)  416.86                80
 03/06/2023   22:30:14   (   0.02,-136.99) (   0.23,-136.12)   99.01                80
 03/09/2023   10:33:16   (  -0.02,-136.98) (  -0.04,-136.86)   13.95                80
 03/11/2023   22:33:47   (   0.02,-136.94) (  -0.13,-137.63)   78.39                80
 03/12/2023   22:17:41   (   0.01,-136.93) (   0.87,-133.10)  436.47                80
 03/14/2023   10:36:48   (  -0.02,-136.91) (   0.30,-138.37)  166.13                80
 03/15/2023   10:20:43   (  -0.02,-136.89) (  -0.70,-133.83)  347.99                80