Simultaneous Nadir Overpasses (SNOs) between GOES-17 and NOAA-21
TLE Epoch: 2023 2 3.  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)
 02/05/2023   08:49:02   (   0.01,-109.04) (   0.52,-111.30)  257.24                80
 02/06/2023   08:32:52   (   0.01,-107.88) (  -0.26,-106.71)  133.66                80
 02/08/2023   20:33:11   (  -0.01,-104.96) (  -0.52,-107.34)  271.28                80
 02/09/2023   20:17:01   (  -0.01,-103.80) (   0.21,-102.75)  119.84                80
 02/12/2023   08:17:11   (   0.01,-100.88) (   0.58,-103.34)  281.60                80
 02/13/2023   08:01:01   (   0.01, -99.72) (  -0.21, -98.76)  109.24                80
 02/15/2023   20:01:19   (  -0.02, -96.78) (  -0.61, -99.38)  296.65                80
 02/16/2023   19:45:09   (  -0.02, -95.62) (   0.19, -94.80)   94.06                80