Simultaneous Nadir Overpasses (SNOs) between GOES-17 and NOAA-21
TLE Epoch: 2023 2 6.  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)
 02/06/2023   08:32:52   (   0.01,-107.88) (  -0.22,-106.70)  133.85                80
 02/08/2023   20:33:10   (  -0.01,-104.97) (  -0.56,-107.34)  270.57                80
 02/09/2023   20:17:01   (  -0.01,-103.81) (   0.23,-102.75)  120.65                80
 02/12/2023   08:17:11   (   0.01,-100.88) (   0.56,-103.35)  280.90                80
 02/13/2023   08:01:01   (   0.01, -99.72) (  -0.23, -98.76)  110.13                80
 02/15/2023   20:01:19   (  -0.02, -96.80) (  -0.59, -99.39)  295.17                80
 02/16/2023   19:45:09   (  -0.02, -95.64) (   0.15, -94.79)   95.67                80
 02/17/2023   19:26:19   (  -0.02, -94.48) (   0.94, -90.21)  486.69                80
 02/19/2023   07:45:19   (   0.02, -92.70) (   0.63, -95.39)  306.38                80