Simultaneous Nadir Overpasses (SNOs) between NOAA-21 and NOAA-19
TLE Epoch: 2023 11 17.  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)
 11/17/2023   14:21:46   (  73.87, -46.50) 11/17/2023   14:20:36  (  73.89, -48.31)   55.87                70
 11/17/2023   15:12:38   ( -74.25, 119.86) 11/17/2023   15:11:24  ( -74.24, 119.88)    1.66                74
 11/17/2023   16:03:24   (  74.26, -72.85) 11/17/2023   16:02:27  (  74.26, -72.83)    1.03                57
 11/17/2023   16:54:08   ( -74.25,  94.49) 11/17/2023   16:53:22  ( -74.27,  94.47)    1.77                46
 11/17/2023   17:44:54   (  74.27, -98.23) 11/17/2023   17:44:25  (  74.29, -98.24)    2.53                29
 11/17/2023   18:35:39   ( -74.30,  68.98) 11/17/2023   18:35:20  ( -74.30,  69.06)    2.48                19
 11/17/2023   19:26:25   (  74.32,-123.74) 11/17/2023   19:26:23  (  74.32,-123.65)    2.66                 2
 11/17/2023   20:17:09   ( -74.31,  43.61) 11/17/2023   20:17:18  ( -74.33,  43.66)    3.26                 9
 11/17/2023   21:07:55   (  74.32,-149.11) 11/17/2023   21:08:22  (  74.30,-149.19)    2.79                27
 11/17/2023   21:58:39   ( -74.31,  18.23) 11/17/2023   21:59:17  ( -74.32,  18.12)    3.38                38
 11/17/2023   22:49:25   (  74.32,-174.49) 11/17/2023   22:50:20  (  74.33,-174.60)    3.46                55
 11/17/2023   23:40:10   ( -74.36,  -7.28) 11/17/2023   23:41:15  ( -74.35,  -7.29)    1.31                65
 11/18/2023   00:31:02   (  74.66, 159.23) 11/18/2023   00:32:12  (  74.65, 160.79)   46.14                70