Simultaneous Nadir Overpasses (SNOs) between GOES-17 and NOAA-21
TLE Epoch: 2023 3 15.  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)
 03/16/2023   08:17:21   (   0.02,-104.75) (  -0.26,-103.60)  131.57                80
 03/17/2023   20:39:16   (  -0.02,-104.76) (  -0.97,-108.89)  470.64                80
 03/18/2023   20:23:10   (  -0.02,-104.77) (   0.04,-104.36)   46.61                80
 03/21/2023   08:26:12   (   0.02,-104.77) (   0.06,-105.10)   37.24                80
 03/22/2023   08:04:46   (   0.02,-104.78) (  -0.90,-100.56)  480.17                80
 03/23/2023   20:26:41   (  -0.02,-104.80) (  -0.25,-105.87)  121.19                80
 03/24/2023   20:10:36   (  -0.02,-104.81) (   0.78,-101.34)  396.52                80
 03/26/2023   08:32:21   (   0.02,-104.81) (   0.45,-106.59)  203.62                80
 03/27/2023   08:10:55   (   0.02,-104.82) (  -0.59,-102.06)  313.69                80
 03/28/2023   20:32:50   (  -0.02,-104.83) (  -0.60,-107.36)  288.32                80