Simultaneous Nadir Overpasses (SNOs) between GOES-17 and NOAA-21
TLE Epoch: 2023 11 23.  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)
 11/23/2023   20:33:42   (   0.00,-104.65) (   0.00,-107.60)  327.42                 0
 11/24/2023   20:16:08   (   0.00,-104.66) (   0.39,-102.93)  196.78                80
 11/26/2023   08:37:57   (  -0.00,-104.68) (   0.78,-108.21)  401.18                80
 11/27/2023   08:16:33   (   0.00,-104.68) (  -0.20,-103.67)  114.89                80
 11/28/2023   20:38:30   (  -0.01,-104.66) (  -0.99,-108.98)  492.90                80
 11/29/2023   20:22:26   (  -0.01,-104.66) (   0.05,-104.45)   23.54                80
 12/02/2023   08:25:31   (   0.02,-104.69) (   0.12,-105.20)   57.65                80
 12/03/2023   08:04:07   (   0.02,-104.69) (  -0.87,-100.66)  458.68                80
 12/04/2023   20:26:04   (  -0.02,-104.67) (  -0.30,-105.97)  148.63                80
 12/05/2023   20:10:00   (  -0.02,-104.67) (   0.69,-101.44)  368.15                80
 12/07/2023   08:31:49   (   0.03,-104.71) (   0.45,-106.72)  228.49                80