Simultaneous Nadir Overpasses (SNOs) between GOES-17 and NOAA-21
TLE Epoch: 2023 5 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)
 05/08/2023   08:25:22   (  -0.00,-104.72) (   0.03,-104.99)   29.80                80
 05/09/2023   08:03:58   (  -0.00,-104.72) (  -0.96,-100.46)  485.64                80
 05/10/2023   20:25:55   (   0.00,-104.71) (  -0.22,-105.77)  119.98                80
 05/11/2023   20:09:50   (   0.00,-104.71) (   0.78,-101.24)  395.79                80
 05/13/2023   08:31:39   (  -0.00,-104.71) (   0.40,-106.51)  205.69                80
 05/14/2023   08:10:14   (  -0.00,-104.70) (  -0.60,-101.98)  310.04                80
 05/15/2023   20:32:11   (   0.00,-104.70) (  -0.56,-107.29)  295.39                80
 05/16/2023   20:16:07   (   0.00,-104.70) (   0.44,-102.76)  220.84                80
 05/18/2023   08:37:55   (  -0.01,-104.71) (   0.73,-108.04)  379.62                80
 05/19/2023   08:16:31   (  -0.01,-104.70) (  -0.28,-103.51)  136.16                80
 05/20/2023   20:38:27   (   0.02,-104.69) (  -0.92,-108.81)  469.98                80