Simultaneous Nadir Overpasses (SNOs) between GOES-17 and NOAA-21
TLE Epoch: 2023 2 25.  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)
 02/25/2023   20:17:05   (  -0.01,-104.70) (   0.40,-102.84)  211.80                80
 02/27/2023   08:38:53   (   0.02,-104.69) (   0.80,-108.11)  389.48                80
 02/28/2023   08:17:28   (   0.02,-104.69) (  -0.23,-103.58)  126.83                80
 03/01/2023   20:39:25   (  -0.02,-104.70) (  -0.96,-108.89)  477.18                80
 03/02/2023   20:23:20   (  -0.03,-104.70) (   0.07,-104.36)   39.41                80
 03/05/2023   08:26:22   (   0.03,-104.70) (   0.14,-105.09)   45.17                80
 03/06/2023   08:04:57   (   0.03,-104.71) (  -0.89,-100.57)  471.43                80
 03/07/2023   20:26:54   (  -0.03,-104.72) (  -0.27,-105.88)  132.22                80
 03/08/2023   20:10:48   (  -0.02,-104.72) (   0.71,-101.34)  384.65                80
 03/10/2023   08:32:36   (   0.03,-104.73) (   0.47,-106.61)  215.71                80