Simultaneous Nadir Overpasses (SNOs) between NOAA-21 and NOAA-19
TLE Epoch: 2023 11 30.  Predictions up to the next  14.0 days:

     Date     Time(NOAA-21) NOAA-21 Lat/Lon Date Time(NOAA-19) NOAA-19 Lat/Lon    Distance(km)  Time Diff(sec)
 12/02/2023   15:31:46   ( -73.94, 115.85) 12/02/2023   15:30:34  ( -73.90, 114.65)   37.10                72
 12/02/2023   16:22:36   (  74.15, -77.36) 12/02/2023   16:21:29  (  74.17, -77.40)    3.27                67
 12/02/2023   17:13:21   ( -74.18,  89.85) 12/02/2023   17:12:27  ( -74.17,  89.86)    1.51                54
 12/02/2023   18:04:07   (  74.20,-102.87) 12/02/2023   18:03:27  (  74.20,-102.81)    1.77                40
 12/02/2023   18:54:51   ( -74.19,  64.47) 12/02/2023   18:54:25  ( -74.20,  64.44)    1.65                26
 12/02/2023   19:45:37   (  74.20,-128.25) 12/02/2023   19:45:25  (  74.23,-128.23)    3.28                12
 12/02/2023   20:36:22   ( -74.24,  38.97) 12/02/2023   20:36:23  ( -74.23,  39.03)    2.19                 1
 12/02/2023   21:27:08   (  74.25,-153.76) 12/02/2023   21:27:23  (  74.26,-153.65)    3.48                15
 12/02/2023   22:17:52   ( -74.24,  13.58) 12/02/2023   22:18:21  ( -74.26,  13.61)    1.82                29
 12/02/2023   23:08:38   (  74.26,-179.14) 12/02/2023   23:09:22  (  74.24,-179.19)    2.52                44
 12/02/2023   23:59:23   ( -74.29, -11.92) 12/03/2023   00:00:19  ( -74.29, -11.80)    3.77                56
 12/03/2023   00:50:08   (  74.26, 155.47) 12/03/2023   00:51:20  (  74.27, 155.39)    2.59                72
 12/03/2023   01:41:01   ( -74.68, -38.33) 12/03/2023   01:42:10  ( -74.64, -36.29)   60.10                69