Simultaneous Nadir Overpasses (SNOs) between NOAA-21 and METOP-B
TLE Epoch: 2022 11 29.  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)
 12/12/2022   19:47:02   ( -72.04,  56.62) 12/12/2022   19:45:55  ( -72.02,  54.10)   86.49                67
 12/12/2022   21:28:21   ( -72.48,  30.47) 12/12/2022   21:27:08  ( -72.46,  29.61)   28.89                73
 12/12/2022   22:19:01   (  72.24,-161.73) 12/12/2022   22:17:52  (  72.24,-163.49)   59.65                69
 12/12/2022   23:09:36   ( -72.71,   4.71) 12/12/2022   23:08:25  ( -72.70,   4.75)    1.97                71
 12/13/2022   00:00:20   (  72.68, 172.10) 12/12/2022   23:59:06  (  72.63, 171.95)    7.22                74
 12/13/2022   00:50:46   ( -72.69, -20.53) 12/13/2022   00:49:47  ( -72.68, -20.63)    3.39                59
 12/13/2022   01:41:31   (  72.70, 146.75) 12/13/2022   01:40:26  (  72.71, 146.78)    1.32                65
 12/13/2022   02:31:57   ( -72.72, -45.88) 12/13/2022   02:31:08  ( -72.71, -45.90)    0.93                49
 12/13/2022   03:22:42   (  72.73, 121.40) 12/13/2022   03:21:47  (  72.74, 121.50)    3.65                55
 12/13/2022   04:13:08   ( -72.74, -71.23) 12/13/2022   04:12:29  ( -72.74, -71.18)    1.72                39
 12/13/2022   05:03:52   (  72.71,  96.15) 12/13/2022   05:03:09  (  72.73,  96.12)    2.19                43
 12/13/2022   05:54:18   ( -72.72, -96.48) 12/13/2022   05:53:51  ( -72.72, -96.56)    2.76                27
 12/13/2022   06:45:03   (  72.74,  70.80) 12/13/2022   06:44:30  (  72.76,  70.85)    2.76                33
 12/13/2022   07:35:29   ( -72.75,-121.82) 12/13/2022   07:35:12  ( -72.75,-121.83)    0.98                17
 12/13/2022   08:26:14   (  72.76,  45.45) 12/13/2022   08:25:52  (  72.74,  45.47)    2.94                22