Simultaneous Nadir Overpasses (SNOs) between GOES-17 and NOAA-21
TLE Epoch: 2023 2 24.  Predictions up to the next  14.0 days:

     Date     Time(GOES-17)   GOES-17 Lat/Lon  NOAA-21 Lat/Lon    Distance(km)  Time Diff(sec)
 02/24/2023   20:33:10   (   0.00,-104.70) (  -0.62,-107.37)  305.08                80
 02/25/2023   20:17:05   (   0.00,-104.70) (   0.40,-102.84)  211.49                80
 02/27/2023   08:38:54   (  -0.01,-104.69) (   0.74,-108.12)  389.97                80
 02/28/2023   08:17:28   (  -0.01,-104.70) (  -0.23,-103.58)  126.33                80
 03/01/2023   20:39:25   (   0.01,-104.70) (  -0.95,-108.89)  477.75                80
 03/02/2023   20:23:20   (   0.01,-104.71) (   0.08,-104.36)   38.76                80
 03/05/2023   08:26:23   (  -0.02,-104.71) (   0.07,-105.11)   45.79                80
 03/06/2023   08:04:58   (  -0.02,-104.71) (  -0.96,-100.58)  470.81                80
 03/07/2023   20:26:54   (   0.02,-104.72) (  -0.25,-105.88)  132.73                80
 03/08/2023   20:10:49   (   0.02,-104.73) (   0.79,-101.36)  384.26                80