Simultaneous Nadir Overpasses (SNOs) between GOES-17 and NOAA-21
TLE Epoch: 2023 11 15.  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)
 11/16/2023   08:25:18   (   0.01,-104.68) (   0.08,-105.15)   53.15                80
 11/17/2023   08:03:55   (  -0.00,-104.68) (  -0.94,-100.63)  462.32                80
 11/18/2023   20:25:52   (   0.00,-104.65) (  -0.29,-105.93)  146.02                80
 11/19/2023   20:09:49   (   0.01,-104.65) (   0.74,-101.40)  369.72                80
 11/21/2023   08:31:38   (  -0.01,-104.67) (   0.44,-106.68)  228.55                80
 11/22/2023   08:10:14   (  -0.01,-104.67) (  -0.59,-102.16)  287.27                80
 11/23/2023   20:32:12   (   0.00,-104.65) (  -0.62,-107.46)  320.53                80
 11/24/2023   20:16:08   (   0.00,-104.65) (   0.42,-102.94)  195.73                80
 11/26/2023   08:37:56   (   0.01,-104.68) (   0.81,-108.20)  401.76                80
 11/27/2023   08:16:33   (   0.01,-104.68) (  -0.22,-103.68)  114.12                80
 11/28/2023   20:41:10   (  -0.02,-104.65) (  -0.97,-108.98)  494.09                80