Simultaneous Nadir Overpasses (SNOs) between GOES-17 and NOAA-21
TLE Epoch: 2023 8 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)
 08/17/2023   08:30:48   (   0.00,-104.71) (   0.36,-106.43)  195.19                80
 08/18/2023   08:09:22   (   0.00,-104.71) (  -0.63,-101.89)  321.57                80
 08/19/2023   20:31:16   (  -0.00,-104.69) (  -0.54,-107.19)  284.19                80
 08/20/2023   20:15:10   (  -0.00,-104.69) (   0.46,-102.65)  232.88                80
 08/22/2023   08:36:55   (   0.00,-104.71) (   0.73,-107.91)  364.65                80
 08/23/2023   08:15:29   (   0.00,-104.71) (  -0.32,-103.38)  151.97                80
 08/24/2023   20:37:23   (  -0.00,-104.68) (  -0.89,-108.67)  454.81                80
 08/25/2023   20:21:16   (  -0.00,-104.67) (   0.11,-104.13)   61.75                80
 08/28/2023   08:24:15   (   0.00,-104.68) (   0.07,-104.85)   20.16                80
 08/29/2023   08:02:50   (   0.01,-104.68) (  -0.99,-100.32)  496.35                80