Simultaneous Nadir Overpasses (SNOs) between GOES-17 and NOAA-21
TLE Epoch: 2023 2 27.  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)
 02/27/2023   08:38:53   (  -0.01,-104.69) (   0.77,-108.11)  390.09                80
 02/28/2023   08:17:29   (  -0.01,-104.69) (  -0.25,-103.59)  125.97                80
 03/01/2023   20:39:25   (   0.01,-104.70) (  -0.93,-108.89)  478.71                80
 03/02/2023   20:23:21   (   0.01,-104.70) (   0.10,-104.37)   37.59                80
 03/05/2023   08:26:23   (  -0.02,-104.70) (   0.05,-105.11)   47.20                80
 03/06/2023   08:04:58   (  -0.02,-104.70) (  -0.92,-100.58)  469.22                80
 03/07/2023   20:26:54   (   0.02,-104.70) (  -0.24,-105.89)  134.98                80
 03/08/2023   20:10:50   (   0.02,-104.71) (   0.80,-101.36)  381.80                80
 03/10/2023   08:32:37   (  -0.02,-104.71) (   0.38,-106.63)  218.62                80
 03/11/2023   08:11:12   (  -0.02,-104.71) (  -0.60,-102.10)  297.89                80
 03/12/2023   20:33:07   (   0.02,-104.71) (  -0.60,-107.40)  306.86                80