Simultaneous Nadir Overpasses (SNOs) between GOES-17 and NOAA-21
TLE Epoch: 2024 1 5.  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)
 01/05/2024   20:27:29   (  -0.00,-104.66) (   0.00,-106.02)  150.77                 0
 01/06/2024   20:09:59   (  -0.01,-104.66) (   0.69,-101.41)  369.93                80
 01/08/2024   08:31:46   (   0.02,-104.68) (   0.48,-106.68)  227.85                80
 01/09/2024   08:10:22   (   0.02,-104.68) (  -0.57,-102.15)  288.31                80
 01/10/2024   20:32:17   (  -0.02,-104.64) (  -0.64,-107.45)  319.21                80
 01/11/2024   20:16:11   (  -0.01,-104.64) (   0.36,-102.91)  197.03                80
 01/13/2024   08:37:59   (   0.01,-104.66) (   0.81,-108.17)  400.85                80
 01/14/2024   08:16:34   (   0.01,-104.66) (  -0.24,-103.65)  115.27                80
 01/15/2024   20:38:30   (  -0.00,-104.62) (  -0.95,-108.95)  492.26                80
 01/16/2024   20:22:24   (   0.00,-104.62) (   0.05,-104.41)   24.26                80
 01/19/2024   08:25:26   (   0.00,-104.65) (   0.11,-105.14)   56.16                80