Simultaneous Nadir Overpasses (SNOs) between NOAA-21 and NOAA-19
TLE Epoch: 2024 12 11.  Predictions up to the next  14.0 days:

     Date     Time(NOAA-21) NOAA-21 Lat/Lon Date Time(NOAA-19) NOAA-19 Lat/Lon    Distance(km)  Time Diff(sec)
 12/21/2024   11:51:36   ( -71.44, 176.54) 12/21/2024   11:50:29  ( -71.41, 173.91)   93.27                67
 12/21/2024   12:42:30   (  71.88, -16.95) 12/21/2024   12:41:18  (  71.91, -17.88)   32.30                72
 12/21/2024   13:33:20   ( -72.17, 149.82) 12/21/2024   13:32:11  ( -72.17, 149.89)    2.45                69
 12/21/2024   14:24:05   (  72.15, -42.83) 12/21/2024   14:23:10  (  72.17, -42.86)    1.92                55
 12/21/2024   15:14:50   ( -72.18, 124.43) 12/21/2024   15:14:08  ( -72.17, 124.41)    1.03                42
 12/21/2024   16:05:36   (  72.21, -68.33) 12/21/2024   16:05:06  (  72.22, -68.24)    3.04                30
 12/21/2024   16:56:20   ( -72.19,  99.03) 12/21/2024   16:56:05  ( -72.18,  98.93)    3.75                15
 12/21/2024   17:47:06   (  72.22, -93.72) 12/21/2024   17:47:03  (  72.22, -93.72)    0.15                 3
 12/21/2024   18:37:51   ( -72.25,  73.54) 12/21/2024   18:38:01  ( -72.23,  73.55)    2.61                10
 12/21/2024   19:28:36   (  72.23,-119.11) 12/21/2024   19:29:00  (  72.22,-119.20)    3.11                24
 12/21/2024   20:19:21   ( -72.26,  48.14) 12/21/2024   20:19:57  ( -72.28,  48.18)    2.53                36
 12/21/2024   21:10:07   (  72.29,-144.61) 12/21/2024   21:10:56  (  72.28,-144.58)    2.21                49
 12/21/2024   22:00:51   ( -72.27,  22.75) 12/21/2024   22:01:54  ( -72.29,  22.70)    2.28                63
 12/21/2024   22:51:38   (  72.36,-170.10) 12/21/2024   22:52:52  (  72.33,-169.96)    5.76                74
 12/21/2024   23:42:32   ( -72.84,  -3.77) 12/21/2024   23:43:41  ( -72.79,  -1.73)   67.48                69