Simultaneous Nadir Overpasses (SNOs) between GOES-18 and NOAA-21
TLE Epoch: 2023 3 7.  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)
 03/08/2023   10:52:00   (  -0.00,-137.01) (   0.98,-141.38)  498.81                80
 03/09/2023   10:30:35   (  -0.00,-137.01) (  -0.01,-136.85)   17.68                80
 03/11/2023   22:33:46   (   0.00,-136.99) (  -0.13,-137.63)   72.59                80
 03/12/2023   22:17:40   (   0.00,-136.98) (   0.87,-133.09)  442.99                80
 03/14/2023   10:36:48   (  -0.00,-136.97) (   0.28,-138.37)  158.81                80
 03/15/2023   10:20:42   (  -0.01,-136.95) (  -0.73,-133.84)  356.10                80
 03/16/2023   22:39:56   (   0.01,-136.92) (  -0.51,-139.13)  252.00                80
 03/17/2023   22:23:51   (   0.01,-136.90) (   0.51,-134.59)  262.58                80
 03/19/2023   10:42:57   (  -0.01,-136.88) (   0.68,-139.86)  340.22                80
 03/20/2023   10:26:52   (  -0.01,-136.86) (  -0.34,-135.33)  174.33                80