Simultaneous Nadir Overpasses (SNOs) between NOAA-21 and NOAA-19
TLE Epoch: 2023 10 5.  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)
 10/18/2023   12:52:11   ( -73.80, 156.09) 10/18/2023   12:51:05  ( -73.79, 153.01)   95.58                66
 10/18/2023   13:43:08   (  74.36, -37.99) 10/18/2023   13:41:54  (  74.35, -38.27)    8.21                74
 10/18/2023   14:33:53   ( -74.39, 129.23) 10/18/2023   14:32:51  ( -74.40, 129.13)    3.06                62
 10/18/2023   15:24:39   (  74.42, -63.52) 10/18/2023   15:23:51  (  74.43, -63.53)    1.84                48
 10/18/2023   16:15:24   ( -74.45, 103.71) 10/18/2023   16:14:49  ( -74.44, 103.74)    1.79                35
 10/18/2023   17:06:10   (  74.48, -89.04) 10/18/2023   17:05:49  (  74.47, -88.92)    3.57                21
 10/18/2023   17:56:54   ( -74.46,  78.31) 10/18/2023   17:56:47  ( -74.47,  78.34)    1.60                 7
 10/18/2023   18:47:40   (  74.48,-114.44) 10/18/2023   18:47:48  (  74.46,-114.45)    2.88                 8
 10/18/2023   19:38:24   ( -74.47,  52.92) 10/18/2023   19:38:46  ( -74.46,  52.81)    3.25                22
 10/18/2023   20:29:10   (  74.49,-139.83) 10/18/2023   20:29:46  (  74.49,-139.84)    0.31                36
 10/18/2023   21:19:55   ( -74.52,  27.40) 10/18/2023   21:20:44  ( -74.49,  27.42)    3.49                49
 10/18/2023   22:10:40   (  74.50,-165.23) 10/18/2023   22:11:44  (  74.53,-165.24)    3.15                64
 10/18/2023   23:01:27   ( -74.63,   1.74) 10/18/2023   23:02:41  ( -74.58,   2.16)   13.70                74