Simultaneous Nadir Overpasses (SNOs) between GOES-17 and NOAA-21
TLE Epoch: 2024 1 7.  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)
 01/08/2024   08:31:46   (   0.02,-104.68) (   0.46,-106.68)  227.73                80
 01/09/2024   08:10:21   (   0.02,-104.68) (  -0.53,-102.14)  288.51                80
 01/10/2024   20:32:17   (  -0.02,-104.65) (  -0.62,-107.45)  318.72                80
 01/11/2024   20:16:12   (  -0.01,-104.64) (   0.37,-102.91)  197.58                80
 01/13/2024   08:37:59   (   0.01,-104.66) (   0.79,-108.18)  400.38                80
 01/14/2024   08:16:34   (   0.01,-104.66) (  -0.21,-103.64)  115.80                80
 01/15/2024   20:38:29   (  -0.00,-104.63) (  -0.99,-108.94)  491.40                80
 01/16/2024   20:22:24   (   0.00,-104.63) (   0.07,-104.41)   25.25                80
 01/19/2024   08:25:26   (   0.00,-104.65) (   0.09,-105.14)   55.29                80
 01/20/2024   08:04:01   (   0.00,-104.65) (  -0.91,-100.61)  461.28                80