Simultaneous Nadir Overpasses (SNOs) between GOES-17 and NOAA-21
TLE Epoch: 2023 11 12.  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)
 11/12/2023   20:38:16   (   0.00,-104.66) (  -0.94,-108.93)  486.48                80
 11/13/2023   20:22:12   (   0.00,-104.66) (   0.08,-104.40)   29.54                80
 11/16/2023   08:25:18   (   0.00,-104.68) (   0.09,-105.15)   53.76                80
 11/17/2023   08:03:54   (   0.01,-104.67) (  -0.87,-100.61)  461.77                80
 11/18/2023   20:25:52   (  -0.01,-104.64) (  -0.29,-105.93)  146.72                80
 11/19/2023   20:09:49   (  -0.01,-104.64) (   0.74,-101.41)  369.03                80
 11/21/2023   08:31:38   (   0.01,-104.66) (   0.44,-106.68)  229.62                80
 11/22/2023   08:10:13   (   0.01,-104.66) (  -0.53,-102.14)  286.16                80
 11/23/2023   20:32:11   (  -0.02,-104.63) (  -0.67,-107.45)  322.11                80
 11/24/2023   20:16:07   (  -0.02,-104.63) (   0.36,-102.93)  194.02                80