Simultaneous Nadir Overpasses (SNOs) between NOAA-21 and METOP-C
TLE Epoch: 2025 9 10.  Predictions up to the next  14.0 days:

     Date     Time(NOAA-21) NOAA-21 Lat/Lon Date Time(METOP-C) METOP-C Lat/Lon    Distance(km)  Time Diff(sec)
 09/10/2025   20:37:36   (  72.62,-137.35) 09/10/2025   20:37:31  (  72.64,-137.36)    2.27                 5
 09/10/2025   21:28:20   ( -72.63,  29.96) 09/10/2025   21:28:13  ( -72.63,  29.93)    0.81                 7
 09/10/2025   22:19:06   (  72.63,-162.74) 09/10/2025   22:18:53  (  72.62,-162.74)    0.82                13
 09/10/2025   23:09:50   ( -72.63,   4.57) 09/10/2025   23:09:35  ( -72.61,   4.55)    2.97                15
 09/11/2025   00:00:35   (  72.59, 171.97) 09/11/2025   00:00:15  (  72.60, 171.88)    3.67                20
 09/11/2025   00:51:20   ( -72.64, -20.82) 09/11/2025   00:50:56  ( -72.64, -20.73)    3.10                24
 09/11/2025   01:42:05   (  72.59, 146.59) 09/11/2025   01:41:37  (  72.58, 146.50)    3.29                28
 09/11/2025   02:32:49   ( -72.60, -46.10) 09/11/2025   02:32:18  ( -72.62, -46.11)    2.23                31
 09/11/2025   03:23:35   (  72.60, 121.20) 09/11/2025   03:22:58  (  72.61, 121.22)    1.42                37
 09/11/2025   04:14:19   ( -72.60, -71.49) 09/11/2025   04:13:40  ( -72.60, -71.49)    0.85                39
 09/11/2025   05:05:05   (  72.61,  95.81) 09/11/2025   05:04:20  (  72.59,  95.83)    2.02                45
 09/11/2025   05:55:48   ( -72.56, -96.78) 09/11/2025   05:55:02  ( -72.57, -96.87)    3.56                46
 09/11/2025   06:46:34   (  72.56,  70.52) 09/11/2025   06:45:42  (  72.57,  70.45)    2.47                52
 09/11/2025   07:37:18   ( -72.57,-122.17) 09/11/2025   07:36:24  ( -72.55,-122.25)    3.20                54
 09/11/2025   08:28:04   (  72.57,  45.14) 09/11/2025   08:27:04  (  72.55,  45.07)    3.17                60
 09/11/2025   09:18:48   ( -72.57,-147.55) 09/11/2025   09:17:45  ( -72.58,-147.53)    1.43                63
 09/11/2025   10:09:34   (  72.58,  19.75) 09/11/2025   10:08:25  (  72.58,  19.79)    1.54                69
 09/11/2025   11:00:18   ( -72.58,-172.94) 09/11/2025   10:59:07  ( -72.56,-172.91)    2.11                71
 09/11/2025   11:51:02   (  72.48,  -5.44) 09/11/2025   11:49:48  (  72.51,  -5.69)    9.03                74
 09/11/2025   12:41:45   ( -72.43, 161.98) 09/11/2025   12:40:31  ( -72.44, 161.50)   15.94                74
 09/11/2025   13:32:26   (  72.18, -30.22) 09/11/2025   13:31:16  (  72.18, -31.68)   49.64                70
 09/11/2025   14:23:09   ( -72.14, 137.19) 09/11/2025   14:21:59  ( -72.11, 135.52)   56.88                70
 09/11/2025   15:13:50   (  71.88, -55.02) 09/11/2025   15:12:43  (  71.90, -57.55)   87.30                67
 09/11/2025   16:04:33   ( -71.84, 112.38) 09/11/2025   16:03:26  ( -71.84, 109.66)   94.31                67