Simultaneous Nadir Overpasses (SNOs) between GOES-17 and NOAA-21
TLE Epoch: 2023 8 17.  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   08:30:49   (   0.00,-104.71) (   0.39,-106.43)  195.73                80
 08/18/2023   08:09:26   (   0.00,-104.71) (  -0.65,-101.91)  320.02                80
 08/19/2023   20:31:23   (  -0.01,-104.69) (  -0.54,-107.22)  287.28                80
 08/20/2023   20:15:19   (  -0.00,-104.69) (   0.44,-102.68)  228.79                80
 08/22/2023   08:37:08   (   0.01,-104.71) (   0.72,-107.96)  370.24                80
 08/23/2023   08:15:43   (   0.00,-104.71) (  -0.26,-103.43)  145.35                80
 08/24/2023   20:37:41   (  -0.00,-104.68) (  -0.92,-108.74)  462.95                80
 08/25/2023   20:21:37   (  -0.00,-104.68) (   0.13,-104.22)   52.70                80
 08/28/2023   08:24:41   (   0.01,-104.69) (   0.09,-104.96)   31.65                80
 08/29/2023   08:03:18   (   0.01,-104.68) (  -0.95,-100.44)  483.71                80
 08/30/2023   20:25:14   (  -0.01,-104.65) (  -0.28,-105.74)  124.87                80