Simultaneous Nadir Overpasses (SNOs) between GOES-17 and NOAA-21
TLE Epoch: 2024 1 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)
 01/20/2024   08:03:59   (   0.01,-104.68) (  -0.88,-100.59)  465.74                80
 01/21/2024   20:25:54   (  -0.01,-104.65) (  -0.29,-105.89)  141.32                80
 01/22/2024   20:09:49   (  -0.01,-104.65) (   0.72,-101.36)  375.54                80
 01/24/2024   08:31:35   (   0.01,-104.68) (   0.46,-106.62)  220.79                80
 01/25/2024   08:10:10   (   0.01,-104.68) (  -0.57,-102.08)  296.02                80
 01/26/2024   20:32:04   (  -0.01,-104.65) (  -0.65,-107.37)  310.94                80
 01/27/2024   20:15:59   (  -0.01,-104.65) (   0.38,-102.84)  206.34                80
 01/29/2024   08:37:45   (   0.01,-104.69) (   0.79,-108.10)  388.96                80
 01/30/2024   08:16:19   (   0.00,-104.70) (  -0.24,-103.57)  128.26                80
 01/31/2024   20:38:14   (  -0.00,-104.67) (  -0.96,-108.86)  478.43                80
 02/01/2024   20:22:08   (  -0.00,-104.67) (   0.08,-104.33)   38.99                80