Simultaneous Nadir Overpasses (SNOs) between GOES-17 and NOAA-21
TLE Epoch: 2023 2 19.  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)
 02/19/2023   20:26:55   (  -0.04,-104.65) (  -0.27,-105.84)  134.91                80
 02/20/2023   20:10:50   (  -0.04,-104.66) (   0.74,-101.31)  382.11                80
 02/22/2023   08:32:38   (   0.04,-104.66) (   0.47,-106.58)  218.63                80
 02/23/2023   08:11:13   (   0.04,-104.67) (  -0.54,-102.05)  298.40                80
 02/24/2023   20:33:09   (  -0.04,-104.70) (  -0.65,-107.36)  303.81                80
 02/25/2023   20:17:05   (  -0.04,-104.71) (   0.37,-102.83)  213.47                80
 02/27/2023   08:38:52   (   0.05,-104.71) (   0.83,-108.10)  386.79                80
 02/28/2023   08:17:28   (   0.05,-104.72) (  -0.19,-103.57)  130.28                80
 03/01/2023   20:39:24   (  -0.06,-104.74) (  -0.99,-108.88)  472.19                80
 03/02/2023   20:23:20   (  -0.06,-104.75) (   0.04,-104.36)   45.13                80
 03/05/2023   08:26:22   (   0.07,-104.77) (   0.12,-105.10)   37.53                80