Simultaneous Nadir Overpasses (SNOs) between GOES-17 and NOAA-21
TLE Epoch: 2023 2 5.  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   (   0.00,-109.04) (   0.52,-111.30)  257.39                80
 02/06/2023   08:32:52   (   0.00,-107.88) (  -0.26,-106.71)  133.54                80
 02/08/2023   20:33:11   (   0.00,-104.97) (  -0.52,-107.34)  270.96                80
 02/09/2023   20:17:02   (   0.00,-103.81) (   0.27,-102.76)  120.30                80
 02/12/2023   08:17:12   (  -0.00,-100.88) (   0.52,-103.36)  281.26                80
 02/13/2023   08:01:01   (  -0.00, -99.72) (  -0.21, -98.76)  109.70                80
 02/15/2023   20:01:20   (   0.00, -96.80) (  -0.56, -99.39)  295.80                80
 02/16/2023   19:45:09   (   0.00, -95.63) (   0.18, -94.80)   94.96                80
 02/17/2023   19:26:20   (   0.01, -94.48) (   0.98, -90.22)  485.99                80