Simultaneous Nadir Overpasses (SNOs) between GOES-17 and NOAA-21
TLE Epoch: 2024 4 13.  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)
 04/13/2024   08:32:16   (   0.00,-104.70) (   0.44,-106.67)  224.77                80
 04/14/2024   08:10:51   (   0.00,-104.70) (  -0.56,-102.13)  291.70                80
 04/15/2024   20:32:47   (  -0.00,-104.68) (  -0.64,-107.43)  314.51                80
 04/16/2024   20:16:44   (  -0.00,-104.68) (   0.42,-102.91)  202.34                80
 04/18/2024   08:38:31   (   0.01,-104.71) (   0.81,-108.17)  395.14                80
 04/19/2024   08:17:08   (   0.01,-104.71) (  -0.26,-103.65)  121.88                80
 04/20/2024   20:41:44   (  -0.01,-104.70) (  -0.94,-108.95)  483.68                80
 04/21/2024   20:20:20   (  -0.01,-104.70) (   0.08,-104.41)   33.50                80
 04/24/2024   08:26:03   (   0.00,-104.74) (   0.07,-105.15)   46.82                80
 04/25/2024   08:04:39   (   0.00,-104.74) (  -0.95,-100.62)  470.13                80
 04/26/2024   20:29:14   (  -0.02,-104.72) (  -0.29,-105.91)  135.42                80