Simultaneous Nadir Overpasses (SNOs) between NOAA-21 and TERRA
TLE Epoch: 2023 12 19.  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)
 12/19/2023   16:53:30   ( -71.50, 100.29) 12/19/2023   16:54:41  ( -71.48, 100.51)    8.26                71
 12/19/2023   17:44:13   (  71.34, -92.12) 12/19/2023   17:44:05  (  71.32, -92.07)    2.47                 8
 12/19/2023   18:34:46   ( -70.78,  76.15) 12/19/2023   18:33:36  ( -70.85,  74.85)   48.38                70
 12/22/2023   04:56:49   (  71.87,  98.81) 12/22/2023   04:57:59  (  71.76, 100.09)   46.46                70
 12/22/2023   05:47:23   ( -71.36, -92.95) 12/22/2023   05:47:29  ( -71.34, -92.93)    2.75                 6
 12/22/2023   06:38:05   (  71.15,  74.72) 12/22/2023   06:36:53  (  71.18,  74.48)    9.26                72
 12/24/2023   17:50:35   (  71.39, -93.79) 12/24/2023   17:50:51  (  71.37, -93.76)    2.22                16
 12/24/2023   18:41:17   ( -71.29,  73.70) 12/24/2023   18:40:15  ( -71.28,  73.76)    2.24                62
 12/27/2023   05:53:44   ( -71.37, -94.55) 12/27/2023   05:54:14  ( -71.39, -94.60)    2.64                30
 12/27/2023   06:44:28   (  71.27,  72.94) 12/27/2023   06:43:37  (  71.27,  72.88)    2.33                51
 12/29/2023   17:56:56   (  71.41, -95.42) 12/29/2023   17:57:35  (  71.40, -95.45)    1.55                39
 12/29/2023   18:47:38   ( -71.31,  72.08) 12/29/2023   18:46:59  ( -71.32,  72.08)    1.09                39
 01/01/2024   06:00:04   ( -71.41, -96.20) 01/01/2024   06:00:56  ( -71.43, -96.28)    3.15                52
 01/01/2024   06:50:49   (  71.37,  71.19) 01/01/2024   06:50:18  (  71.36,  71.27)    3.03                31