Simultaneous Nadir Overpasses (SNOs) between GOES-17 and NOAA-21
TLE Epoch: 2023 10 17.  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)
 10/17/2023   20:25:08   (   0.00,-104.68) (  -0.23,-105.75)  121.33                80
 10/18/2023   20:09:02   (   0.00,-104.68) (   0.79,-101.22)  395.20                80
 10/20/2023   08:30:49   (  -0.00,-104.70) (   0.37,-106.48)  202.59                80
 10/21/2023   08:09:22   (  -0.00,-104.69) (  -0.60,-101.94)  313.57                80
 10/22/2023   20:31:17   (  -0.00,-104.66) (  -0.56,-107.24)  294.08                80
 10/23/2023   20:15:11   (  -0.00,-104.66) (   0.41,-102.70)  222.46                80
 10/25/2023   08:36:57   (   0.00,-104.68) (   0.73,-107.97)  374.62                80
 10/26/2023   08:15:32   (   0.00,-104.68) (  -0.30,-103.44)  141.96                80
 10/27/2023   20:37:26   (  -0.00,-104.64) (  -0.89,-108.73)  465.38                80
 10/28/2023   20:21:20   (   0.00,-104.64) (   0.09,-104.19)   51.48                80