Simultaneous Nadir Overpasses (SNOs) between NOAA-21 and TERRA
TLE Epoch: 2023 12 25.  Predictions up to the next  14.0 days:

     Date     Time(NOAA-21) NOAA-21 Lat/Lon Date Time(TERRA) TERRA Lat/Lon    Distance(km)  Time Diff(sec)
 12/27/2023   05:53:44   ( -71.40, -94.60) 12/27/2023   05:54:12  ( -71.42, -94.56)    2.17                28
 12/27/2023   06:44:28   (  71.29,  72.90) 12/27/2023   06:43:35  (  71.31,  72.94)    2.21                53
 12/29/2023   17:56:55   (  71.40, -95.39) 12/29/2023   17:57:33  (  71.40, -95.45)    2.29                38
 12/29/2023   18:47:37   ( -71.30,  72.09) 12/29/2023   18:46:57  ( -71.31,  72.07)    1.29                40
 01/01/2024   06:00:04   ( -71.42, -96.20) 01/01/2024   06:00:54  ( -71.42, -96.28)    2.94                50
 01/01/2024   06:50:49   (  71.36,  71.20) 01/01/2024   06:50:16  (  71.36,  71.28)    2.75                33
 01/03/2024   18:03:15   (  71.49, -97.12) 01/03/2024   18:04:11  (  71.48, -97.05)    2.55                56
 01/03/2024   18:53:56   ( -71.34,  70.46) 01/03/2024   18:53:36  ( -71.35,  70.39)    2.61                20
 01/06/2024   06:06:23   ( -71.47, -97.87) 01/06/2024   06:07:31  ( -71.49, -97.90)    2.37                68
 01/06/2024   06:57:07   (  71.37,  69.62) 01/06/2024   06:56:54  (  71.36,  69.56)    2.20                13