Simultaneous Nadir Overpasses (SNOs) between NOAA-21 and NOAA-19
TLE Epoch: 2024 12 13.  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   ( -71.42, 176.58) 12/21/2024   11:50:29  ( -71.43, 173.96)   93.00                67
 12/21/2024   12:42:31   (  71.91, -17.00) 12/21/2024   12:41:19  (  71.89, -17.93)   32.17                72
 12/21/2024   13:33:20   ( -72.15, 149.86) 12/21/2024   13:32:12  ( -72.14, 149.84)    0.79                68
 12/21/2024   14:24:06   (  72.18, -42.88) 12/21/2024   14:23:10  (  72.19, -42.81)    3.29                56
 12/21/2024   15:14:51   ( -72.21, 124.37) 12/21/2024   15:14:08  ( -72.20, 124.46)    3.30                43
 12/21/2024   16:05:36   (  72.19, -68.28) 12/21/2024   16:05:07  (  72.20, -68.29)    1.21                29
 12/21/2024   16:56:21   ( -72.22,  98.98) 12/21/2024   16:56:05  ( -72.20,  98.98)    1.74                16
 12/21/2024   17:47:06   (  72.20, -93.67) 12/21/2024   17:47:04  (  72.20, -93.77)    3.29                 2
 12/21/2024   18:37:51   ( -72.23,  73.58) 12/21/2024   18:38:01  ( -72.26,  73.61)    3.25                10
 12/21/2024   19:28:37   (  72.26,-119.16) 12/21/2024   19:29:00  (  72.25,-119.14)    0.84                23
 12/21/2024   20:19:21   ( -72.24,  48.19) 12/21/2024   20:19:58  ( -72.26,  48.13)    3.20                37
 12/21/2024   21:10:07   (  72.27,-144.56) 12/21/2024   21:10:57  (  72.26,-144.63)    2.65                50
 12/21/2024   22:00:52   ( -72.30,  22.70) 12/21/2024   22:01:54  ( -72.31,  22.75)    2.50                62
 12/21/2024   22:51:39   (  72.38,-170.15) 12/21/2024   22:52:52  (  72.36,-169.90)    8.88                73
 12/21/2024   23:42:32   ( -72.82,  -3.72) 12/21/2024   23:43:41  ( -72.81,  -1.67)   67.46                69