Simultaneous Nadir Overpasses (SNOs) between GOES-17 and NOAA-21
TLE Epoch: 2024 5 18.  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)
 05/20/2024   08:38:09   (   0.00,-104.71) (   0.74,-108.01)  375.66                80
 05/21/2024   08:16:42   (  -0.00,-104.71) (  -0.26,-103.46)  141.64                80
 05/22/2024   20:38:36   (   0.01,-104.71) (  -0.90,-108.76)  462.10                80
 05/23/2024   20:22:30   (   0.01,-104.71) (   0.10,-104.22)   55.31                80
 05/26/2024   08:22:49   (  -0.01,-104.71) (   0.07,-104.93)   26.28                80
 05/27/2024   08:06:42   (  -0.00,-104.70) (  -0.95,-100.39)  491.03                80
 05/28/2024   20:25:56   (   0.00,-104.69) (  -0.24,-105.68)  112.97                80
 05/29/2024   20:09:49   (  -0.00,-104.69) (   0.77,-101.14)  404.50                80
 05/31/2024   08:28:54   (   0.00,-104.69) (   0.37,-106.40)  193.76                80
 06/01/2024   08:12:48   (   0.00,-104.69) (  -0.65,-101.86)  323.75                80