Simultaneous Nadir Overpasses (SNOs) between GOES-17 and NOAA-21
TLE Epoch: 2024 6 19.  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)
 06/19/2024   20:17:03   (   0.01,-104.71) (   0.45,-102.84)  214.01                80
 06/21/2024   08:38:52   (  -0.01,-104.71) (   0.73,-108.11)  387.14                80
 06/22/2024   08:17:29   (  -0.00,-104.70) (  -0.28,-103.58)  128.62                80
 06/23/2024   20:39:27   (  -0.00,-104.70) (  -0.91,-108.89)  476.84                80
 06/24/2024   20:23:23   (  -0.01,-104.69) (   0.10,-104.36)   39.21                80
 06/27/2024   08:26:28   (   0.01,-104.69) (   0.12,-105.09)   45.90                80
 06/28/2024   08:05:05   (   0.01,-104.69) (  -0.90,-100.56)  470.04                80
 06/29/2024   20:27:03   (  -0.02,-104.68) (  -0.29,-105.87)  135.12                80
 06/30/2024   20:11:00   (  -0.02,-104.68) (   0.73,-101.34)  380.96                80
 07/02/2024   08:32:49   (   0.02,-104.68) (   0.44,-106.61)  219.68                80