Simultaneous Nadir Overpasses (SNOs) between GOES-17 and NOAA-21
TLE Epoch: 2024 4 17.  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)
 04/18/2024   08:38:31   (   0.00,-104.70) (   0.80,-108.17)  395.85                80
 04/19/2024   08:17:07   (   0.00,-104.70) (  -0.22,-103.64)  121.00                80
 04/20/2024   20:39:03   (  -0.00,-104.69) (  -0.96,-108.94)  484.65                80
 04/21/2024   20:22:58   (  -0.00,-104.69) (   0.06,-104.41)   32.35                80
 04/24/2024   08:26:01   (   0.00,-104.72) (   0.10,-105.14)   48.15                80
 04/25/2024   08:04:37   (  -0.00,-104.72) (  -0.93,-100.61)  468.64                80
 04/26/2024   20:26:32   (  -0.00,-104.70) (  -0.28,-105.90)  137.30                80
 04/27/2024   20:10:28   (  -0.00,-104.70) (   0.77,-101.37)  379.42                80
 04/29/2024   08:32:14   (   0.02,-104.71) (   0.47,-106.62)  218.22                80
 04/30/2024   08:10:49   (   0.03,-104.71) (  -0.58,-102.10)  298.38                80