Simultaneous Nadir Overpasses (SNOs) between GOES-18 and NOAA-21
TLE Epoch: 2023 2 12.  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)
 02/12/2023   22:40:02   (  -0.01,-136.99) (  -0.49,-139.07)  237.27                80
 02/13/2023   22:23:58   (  -0.01,-136.99) (   0.51,-134.54)  277.97                80
 02/15/2023   10:45:46   (   0.02,-136.97) (   0.68,-139.82)  325.07                80
 02/16/2023   10:24:23   (   0.02,-136.96) (  -0.38,-135.30)  189.50                80
 02/17/2023   22:46:19   (  -0.02,-136.93) (  -0.85,-140.60)  418.09                80
 02/18/2023   22:30:14   (  -0.02,-136.92) (   0.15,-136.07)   96.22                80
 02/21/2023   10:33:18   (   0.02,-136.88) (   0.04,-136.81)    7.13                80
 02/23/2023   22:36:31   (  -0.02,-136.83) (  -0.20,-137.60)   87.60                80
 02/24/2023   22:15:07   (  -0.02,-136.81) (   0.80,-133.07)  426.26                80