Simultaneous Nadir Overpasses (SNOs) between NOAA-21 and METOP-B
TLE Epoch: 2023 11 20.  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)
 12/03/2023   09:17:26   (  73.63,  30.15) 12/03/2023   09:18:32  (  73.58,  33.09)   92.54                66
 12/03/2023   10:08:08   ( -73.51,-162.27) 12/03/2023   10:09:16  ( -73.47,-159.82)   77.36                68
 12/03/2023   10:58:50   (  73.33,   5.45) 12/03/2023   11:00:00  (  73.25,   7.02)   50.80                70
 12/03/2023   11:49:32   ( -73.21, 173.03) 12/03/2023   11:50:44  ( -73.15, 174.12)   35.79                72
 12/03/2023   12:40:14   (  73.03, -19.27) 12/03/2023   12:41:27  (  72.97, -18.92)   12.86                73
 12/03/2023   13:30:56   ( -72.91, 148.30) 12/03/2023   13:32:10  ( -72.92, 148.29)    1.01                74
 12/03/2023   14:21:41   (  72.88, -44.32) 12/03/2023   14:22:50  (  72.90, -44.42)    3.70                69
 12/03/2023   15:12:26   ( -72.91, 122.92) 12/03/2023   15:13:32  ( -72.90, 122.90)    2.17                66
 12/03/2023   16:03:12   (  72.93, -69.81) 12/03/2023   16:04:11  (  72.92, -69.71)    3.55                59
 12/03/2023   16:53:56   ( -72.92,  97.54) 12/03/2023   16:54:53  ( -72.92,  97.62)    2.49                57
 12/03/2023   17:44:41   (  72.89, -95.08) 12/03/2023   17:45:33  (  72.90, -95.10)    1.32                52
 12/03/2023   18:35:25   ( -72.87,  72.27) 12/03/2023   18:36:15  ( -72.90,  72.22)    3.31                50
 12/03/2023   19:26:11   (  72.89,-120.46) 12/03/2023   19:26:55  (  72.87,-120.50)    2.27                44
 12/03/2023   20:16:55   ( -72.87,  46.89) 12/03/2023   20:17:37  ( -72.87,  46.83)    1.91                42
 12/03/2023   21:07:41   (  72.89,-145.84) 12/03/2023   21:08:16  (  72.90,-145.78)    2.01                35
 12/03/2023   21:58:25   ( -72.87,  21.51) 12/03/2023   21:58:58  ( -72.90,  21.54)    2.65                33
 12/03/2023   22:49:10   (  72.89,-171.22) 12/03/2023   22:49:37  (  72.87,-171.18)    2.98                27
 12/03/2023   23:39:54   ( -72.88,  -3.87) 12/03/2023   23:40:19  ( -72.87,  -3.85)    0.99                25
 12/04/2023   00:30:39   (  72.84, 163.50) 12/04/2023   00:30:59  (  72.84, 163.43)    2.43                20
 12/04/2023   01:21:23   ( -72.83, -29.15) 12/04/2023   01:21:41  ( -72.84, -29.24)    3.68                18
 12/04/2023   02:12:09   (  72.85, 138.12) 12/04/2023   02:12:20  (  72.87, 138.14)    2.54                11