Simultaneous Nadir Overpasses (SNOs) between NOAA-21 and METOP-B
TLE Epoch: 2025 9 22.  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)
 10/06/2025   03:55:48   (  75.03, 107.48) 10/06/2025   03:56:55  (  74.95, 110.09)   75.60                67
 10/06/2025   04:46:30   ( -74.94, -84.96) 10/06/2025   04:47:39  ( -74.88, -82.78)   63.61                69
 10/06/2025   05:37:11   (  74.70,  83.03) 10/06/2025   05:38:23  (  74.64,  83.91)   26.79                72
 10/06/2025   06:27:54   ( -74.66,-109.56) 10/06/2025   06:29:06  ( -74.62,-108.82)   22.41                72
 10/06/2025   07:18:37   (  74.51,  58.16) 10/06/2025   07:19:47  (  74.53,  58.27)    3.86                70
 10/06/2025   08:09:20   ( -74.48,-134.44) 10/06/2025   08:10:30  ( -74.51,-134.45)    3.24                70
 10/06/2025   09:00:06   (  74.47,  32.89) 10/06/2025   09:01:10  (  74.46,  32.77)    3.79                64
 10/06/2025   09:50:50   ( -74.49,-159.83) 10/06/2025   09:51:52  ( -74.49,-159.83)    0.60                62
 10/06/2025   10:41:36   (  74.48,   7.49) 10/06/2025   10:42:31  (  74.50,   7.51)    1.82                55
 10/06/2025   11:32:20   ( -74.50, 174.77) 10/06/2025   11:33:14  ( -74.48, 174.79)    2.07                54
 10/06/2025   12:23:06   (  74.49, -17.90) 10/06/2025   12:23:53  (  74.48, -17.87)    1.42                47
 10/06/2025   13:13:49   ( -74.46, 149.50) 10/06/2025   13:14:36  ( -74.46, 149.41)    2.99                47
 10/06/2025   14:04:35   (  74.45, -43.17) 10/06/2025   14:05:15  (  74.47, -43.25)    2.94                40
 10/06/2025   14:55:19   ( -74.46, 124.11) 10/06/2025   14:55:58  ( -74.45, 124.03)    3.06                39
 10/06/2025   15:46:05   (  74.46, -68.57) 10/06/2025   15:46:37  (  74.45, -68.63)    1.96                32
 10/06/2025   16:36:49   ( -74.47,  98.71) 10/06/2025   16:37:19  ( -74.48,  98.77)    2.04                30
 10/06/2025   17:27:35   (  74.47, -93.96) 10/06/2025   17:27:58  (  74.48, -93.88)    3.18                23