Simultaneous Nadir Overpasses (SNOs) between GOES-18 and NOAA-21
TLE Epoch: 2023 5 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)
 05/02/2023   10:17:03   (  -0.00,-137.00) (  -0.74,-133.68)  378.45                80
 05/03/2023   22:39:00   (   0.00,-137.00) (  -0.45,-138.99)  227.30                80
 05/04/2023   22:22:56   (   0.00,-137.00) (   0.59,-134.47)  288.48                80
 05/06/2023   10:44:45   (  -0.00,-137.00) (   0.61,-139.74)  313.05                80
 05/07/2023   10:23:20   (  -0.00,-136.99) (  -0.37,-135.21)  202.00                80
 05/08/2023   22:45:18   (   0.00,-136.96) (  -0.81,-140.52)  405.81                80
 05/09/2023   22:29:14   (   0.00,-136.95) (   0.24,-136.00)  108.70                80
 05/11/2023   10:51:02   (   0.01,-136.93) (   0.96,-141.27)  494.04                80
 05/12/2023   10:29:38   (   0.02,-136.92) (  -0.04,-136.74)   20.42                80
 05/14/2023   22:32:51   (  -0.03,-136.87) (  -0.14,-137.52)   74.13                80
 05/15/2023   22:16:46   (  -0.03,-136.85) (   0.85,-132.99)  440.06                80