Simultaneous Nadir Overpasses (SNOs) between GOES-17 and NOAA-21
TLE Epoch: 2024 6 16.  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)
 06/17/2024   08:11:07   (   0.02,-104.71) (  -0.57,-102.04)  303.41                80
 06/18/2024   20:33:06   (   0.01,-104.71) (  -0.57,-107.36)  302.14                80
 06/19/2024   20:17:02   (   0.02,-104.71) (   0.43,-102.83)  213.54                80
 06/21/2024   08:38:52   (  -0.02,-104.70) (   0.75,-108.10)  387.76                80
 06/22/2024   08:17:28   (  -0.02,-104.70) (  -0.27,-103.58)  127.97                80
 06/23/2024   20:39:26   (   0.01,-104.69) (  -0.92,-108.88)  477.60                80
 06/24/2024   20:23:23   (   0.00,-104.69) (   0.09,-104.36)   38.38                80
 06/27/2024   08:23:48   (   0.01,-104.68) (   0.12,-105.09)   46.64                80
 06/28/2024   08:05:04   (   0.02,-104.68) (  -0.90,-100.56)  469.40                80
 06/29/2024   20:27:03   (  -0.01,-104.67) (  -0.27,-105.87)  135.99                80