Simultaneous Nadir Overpasses (SNOs) between NOAA-21 and METOP-B
TLE Epoch: 2023 9 30.  Predictions up to the next  14.0 days:

     Date     Time(NOAA-21) NOAA-21 Lat/Lon Date Time(METOP-B) METOP-B Lat/Lon    Distance(km)  Time Diff(sec)
 10/13/2023   16:59:36   (  73.52, -85.13) 10/13/2023   17:00:43  (  73.46, -82.46)   84.95                67
 10/13/2023   17:50:19   ( -73.47,  82.32) 10/13/2023   17:51:26  ( -73.41,  84.77)   77.88                67
 10/13/2023   18:41:00   (  73.23,-109.85) 10/13/2023   18:42:10  (  73.18,-108.41)   46.61                70
 10/13/2023   19:31:42   ( -73.12,  57.71) 10/13/2023   19:32:54  ( -73.09,  58.71)   32.79                72
 10/13/2023   20:22:24   (  72.94,-134.58) 10/13/2023   20:23:37  (  72.90,-134.34)    8.72                73
 10/13/2023   21:13:07   ( -72.88,  32.85) 10/13/2023   21:14:20  ( -72.86,  32.89)    2.46                73
 10/13/2023   22:03:52   (  72.84,-159.76) 10/13/2023   22:05:00  (  72.83,-159.84)    3.09                68
 10/13/2023   22:54:36   ( -72.84,   7.57) 10/13/2023   22:55:42  ( -72.84,   7.50)    2.26                66
 10/13/2023   23:45:22   (  72.85, 174.85) 10/13/2023   23:46:21  (  72.85, 174.88)    0.92                59
 10/14/2023   00:36:06   ( -72.84, -17.82) 10/14/2023   00:37:03  ( -72.86, -17.78)    2.33                57
 10/14/2023   01:26:52   (  72.86, 149.46) 10/14/2023   01:27:43  (  72.83, 149.49)    3.29                51
 10/14/2023   02:17:36   ( -72.85, -43.21) 10/14/2023   02:18:25  ( -72.84, -43.17)    1.90                49
 10/14/2023   03:08:21   (  72.81, 124.18) 10/14/2023   03:09:05  (  72.80, 124.09)    2.96                44