Simultaneous Nadir Overpasses (SNOs) between GOES-17 and NOAA-21
TLE Epoch: 2024 9 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)
 09/16/2024   08:05:27   (   0.00,-104.70) (  -0.94,-100.43)  486.03                80
 09/17/2024   20:27:27   (  -0.00,-104.71) (  -0.22,-105.75)  118.61                80
 09/18/2024   20:11:24   (  -0.00,-104.71) (   0.79,-101.23)  397.18                80
 09/20/2024   08:33:16   (   0.00,-104.70) (   0.40,-106.50)  205.01                80
 09/21/2024   08:11:53   (   0.00,-104.70) (  -0.62,-101.98)  310.37                80
 09/22/2024   20:33:52   (  -0.00,-104.70) (  -0.57,-107.29)  294.89                80
 09/23/2024   20:17:50   (  -0.01,-104.70) (   0.45,-102.77)  220.86                80
 09/25/2024   08:39:40   (   0.01,-104.70) (   0.76,-108.04)  380.65                80
 09/26/2024   08:18:18   (   0.02,-104.69) (  -0.28,-103.52)  134.94                80
 09/27/2024   20:40:16   (  -0.02,-104.69) (  -0.94,-108.82)  470.45                80
 09/28/2024   20:24:13   (  -0.02,-104.69) (   0.04,-104.29)   45.84                80