Simultaneous Nadir Overpasses (SNOs) between NOAA-21 and METOP-B
TLE Epoch: 2023 3 8.  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)
 03/21/2023   18:55:16   ( -73.48,  66.38) 03/21/2023   18:56:23  ( -73.41,  69.13)   87.58                67
 03/21/2023   19:45:57   (  73.25,-125.79) 03/21/2023   19:47:06  (  73.23,-123.93)   59.77                69
 03/21/2023   20:36:40   ( -73.19,  41.66) 03/21/2023   20:37:50  ( -73.13,  43.19)   49.61                70
 03/21/2023   21:27:21   (  72.95,-150.53) 03/21/2023   21:28:34  (  72.90,-149.97)   19.11                73
 03/21/2023   22:18:04   ( -72.89,  16.91) 03/21/2023   22:19:17  ( -72.85,  17.26)   12.09                73
 03/21/2023   23:08:47   (  72.76,-175.50) 03/21/2023   23:09:58  (  72.77,-175.58)    3.00                71
 03/21/2023   23:59:32   ( -72.80,  -8.27) 03/22/2023   00:00:40  ( -72.78,  -8.24)    2.85                68
 03/22/2023   00:50:17   (  72.77, 159.11) 03/22/2023   00:51:19  (  72.80, 159.13)    3.23                62
 03/22/2023   01:41:01   ( -72.76, -33.56) 03/22/2023   01:42:02  ( -72.75, -33.63)    2.72                61
 03/22/2023   02:31:47   (  72.78, 133.72) 03/22/2023   02:32:41  (  72.77, 133.74)    1.08                54