Simultaneous Nadir Overpasses (SNOs) between GOES-17 and NOAA-21
TLE Epoch: 2023 11 11.  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)
 11/11/2023   08:16:17   (  -0.00,-104.68) (  -0.22,-103.61)  121.27                80
 11/12/2023   20:38:15   (   0.00,-104.66) (  -0.96,-108.93)  486.55                80
 11/13/2023   20:22:12   (   0.00,-104.66) (   0.06,-104.40)   29.35                80
 11/16/2023   08:25:18   (   0.00,-104.68) (   0.10,-105.15)   53.86                80
 11/17/2023   08:03:54   (   0.01,-104.67) (  -0.92,-100.63)  461.59                80
 11/18/2023   20:25:52   (  -0.01,-104.64) (  -0.29,-105.93)  146.96                80
 11/19/2023   20:09:48   (  -0.01,-104.63) (   0.74,-101.40)  368.77                80
 11/21/2023   08:31:37   (   0.01,-104.66) (   0.43,-106.68)  229.85                80
 11/22/2023   08:10:13   (   0.01,-104.66) (  -0.54,-102.14)  285.92                80
 11/23/2023   20:32:10   (  -0.01,-104.63) (  -0.66,-107.45)  322.37                80
 11/24/2023   20:16:07   (  -0.02,-104.62) (   0.38,-102.93)  193.76                80