Simultaneous Nadir Overpasses (SNOs) between NOAA-21 and NOAA-19
TLE Epoch: 2024 12 9.  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   11:51:35   ( -71.42, 176.57) 12/21/2024   11:50:28  ( -71.43, 173.95)   92.91                67
 12/21/2024   12:42:30   (  71.92, -17.02) 12/21/2024   12:41:17  (  71.93, -17.84)   28.46                73
 12/21/2024   13:33:19   ( -72.15, 149.85) 12/21/2024   13:32:11  ( -72.14, 149.83)    1.96                68
 12/21/2024   14:24:05   (  72.19, -42.90) 12/21/2024   14:23:09  (  72.18, -42.82)    2.82                56
 12/21/2024   15:14:49   ( -72.16, 124.46) 12/21/2024   15:14:07  ( -72.19, 124.45)    2.90                42
 12/21/2024   16:05:35   (  72.20, -68.30) 12/21/2024   16:05:06  (  72.19, -68.30)    1.43                29
 12/21/2024   16:56:20   ( -72.23,  98.96) 12/21/2024   16:56:04  ( -72.19,  98.97)    3.64                16
 12/21/2024   17:47:05   (  72.21, -93.69) 12/21/2024   17:47:02  (  72.24, -93.68)    3.27                 3
 12/21/2024   18:37:50   ( -72.24,  73.57) 12/21/2024   18:38:00  ( -72.25,  73.60)    1.41                10
 12/21/2024   19:28:35   (  72.22,-119.09) 12/21/2024   19:28:59  (  72.24,-119.16)    3.45                24
 12/21/2024   20:19:20   ( -72.25,  48.18) 12/21/2024   20:19:57  ( -72.25,  48.12)    2.01                37
 12/21/2024   21:10:06   (  72.28,-144.58) 12/21/2024   21:10:55  (  72.29,-144.54)    1.86                49
 12/21/2024   22:00:51   ( -72.31,  22.68) 12/21/2024   22:01:53  ( -72.30,  22.74)    2.09                62
 12/21/2024   22:51:38   (  72.40,-170.18) 12/21/2024   22:52:51  (  72.35,-169.92)   10.31                73
 12/21/2024   23:42:31   ( -72.83,  -3.74) 12/21/2024   23:43:40  ( -72.80,  -1.69)   67.58                69