Simultaneous Nadir Overpasses (SNOs) between GOES-17 and NOAA-21
TLE Epoch: 2023 2 7.  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)
 02/08/2023   20:33:10   (  -0.01,-104.97) (  -0.56,-107.34)  270.30                80
 02/09/2023   20:17:01   (  -0.01,-103.81) (   0.23,-102.75)  120.99                80
 02/12/2023   08:17:11   (   0.01,-100.88) (   0.55,-103.35)  280.80                80
 02/13/2023   08:01:00   (   0.01, -99.72) (  -0.19, -98.75)  110.24                80
 02/15/2023   20:01:19   (  -0.01, -96.80) (  -0.56, -99.39)  294.50                80
 02/16/2023   19:45:09   (  -0.01, -95.64) (   0.18, -94.80)   96.38                80
 02/17/2023   19:26:18   (  -0.01, -94.48) (   0.92, -90.20)  487.54                80
 02/19/2023   07:45:18   (   0.01, -92.71) (   0.64, -95.38)  305.67                80
 02/20/2023   07:29:08   (   0.01, -91.55) (  -0.17, -90.80)   85.54                80