Simultaneous Nadir Overpasses (SNOs) between NOAA-21 and METOP-B
TLE Epoch: 2025 6 9.  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)
 06/23/2025   07:38:01   ( -74.94,-127.81) 06/23/2025   07:39:07  ( -74.86,-124.70)   90.79                66
 06/23/2025   08:28:42   (  74.69,  40.18) 06/23/2025   08:29:51  (  74.63,  42.03)   55.00                69
 06/23/2025   09:19:24   ( -74.60,-152.27) 06/23/2025   09:20:35  ( -74.54,-150.87)   41.84                71
 06/23/2025   10:10:05   (  74.35,  15.70) 06/23/2025   10:11:19  (  74.32,  15.88)    6.83                74
 06/23/2025   11:00:48   ( -74.32,-176.89) 06/23/2025   11:02:01  ( -74.33,-176.77)    3.60                73
 06/23/2025   11:51:34   (  74.31,  -9.56) 06/23/2025   11:52:41  (  74.29,  -9.52)    2.03                67
 06/23/2025   12:42:18   ( -74.32, 157.73) 06/23/2025   12:43:23  ( -74.30, 157.83)    3.42                65
 06/23/2025   13:33:03   (  74.26, -34.82) 06/23/2025   13:34:03  (  74.27, -34.92)    3.27                60
 06/23/2025   14:23:47   ( -74.27, 132.47) 06/23/2025   14:24:45  ( -74.28, 132.43)    1.53                58
 06/23/2025   15:14:33   (  74.26, -60.20) 06/23/2025   15:15:24  (  74.30, -60.19)    3.42                51
 06/23/2025   16:05:17   ( -74.28, 107.09) 06/23/2025   16:06:07  ( -74.26, 107.03)    2.73                50
 06/23/2025   16:56:03   (  74.27, -85.58) 06/23/2025   16:56:46  (  74.27, -85.59)    0.65                43
 06/23/2025   17:46:47   ( -74.28,  81.71) 06/23/2025   17:47:28  ( -74.28,  81.76)    1.54                41
 06/23/2025   18:37:33   (  74.27,-110.96) 06/23/2025   18:38:08  (  74.25,-110.99)    2.53                35
 06/23/2025   19:28:17   ( -74.28,  56.33) 06/23/2025   19:28:50  ( -74.26,  56.36)    2.55                33
 06/23/2025   20:19:03   (  74.27,-136.34) 06/23/2025   20:19:29  (  74.28,-136.27)    2.39                26