Simultaneous Nadir Overpasses (SNOs) between GOES-17 and NOAA-21
TLE Epoch: 2024 1 10.  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)
 01/10/2024   20:32:17   (   0.01,-104.66) (  -0.63,-107.45)  318.44                80
 01/11/2024   20:16:12   (   0.01,-104.65) (   0.42,-102.92)  198.05                80
 01/13/2024   08:38:00   (  -0.02,-104.68) (   0.74,-108.19)  399.78                80
 01/14/2024   08:16:34   (  -0.02,-104.67) (  -0.25,-103.65)  116.78                80
 01/15/2024   20:38:30   (   0.02,-104.65) (  -0.94,-108.95)  489.73                80
 01/16/2024   20:22:24   (   0.02,-104.65) (   0.06,-104.41)   27.25                80
 01/19/2024   08:25:26   (  -0.03,-104.68) (   0.09,-105.14)   52.97                80
 01/20/2024   08:04:00   (  -0.03,-104.68) (  -0.92,-100.61)  463.73                80
 01/21/2024   20:25:56   (   0.04,-104.65) (  -0.26,-105.90)  143.02                80
 01/22/2024   20:09:50   (   0.04,-104.65) (   0.75,-101.37)  373.81                80