Simultaneous Nadir Overpasses (SNOs) between NOAA-21 and TERRA
TLE Epoch: 2023 12 17.  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)
 12/17/2023   04:50:19   (  71.38, 101.28) 12/17/2023   04:51:19  (  71.37, 101.23)    2.30                60
 12/17/2023   05:41:01   ( -71.29, -91.24) 12/17/2023   05:40:43  ( -71.28, -91.26)    1.39                18
 12/19/2023   16:53:30   ( -71.50, 100.28) 12/19/2023   16:54:41  ( -71.48, 100.53)    8.80                71
 12/19/2023   17:44:13   (  71.34, -92.13) 12/19/2023   17:44:05  (  71.33, -92.07)    2.94                 8
 12/19/2023   18:34:46   ( -70.78,  76.15) 12/19/2023   18:33:36  ( -70.86,  74.86)   47.79                70
 12/22/2023   04:56:49   (  71.87,  98.80) 12/22/2023   04:57:59  (  71.78, 100.13)   47.29                70
 12/22/2023   05:47:23   ( -71.36, -92.95) 12/22/2023   05:47:29  ( -71.37, -92.89)    2.39                 6
 12/22/2023   06:38:06   (  71.21,  74.63) 12/22/2023   06:36:53  (  71.21,  74.52)    3.98                73
 12/24/2023   17:50:35   (  71.38, -93.78) 12/24/2023   17:50:52  (  71.37, -93.76)    1.91                17
 12/24/2023   18:41:17   ( -71.28,  73.71) 12/24/2023   18:40:16  ( -71.28,  73.76)    1.74                61
 12/27/2023   05:53:45   ( -71.41, -94.62) 12/27/2023   05:54:15  ( -71.42, -94.55)    2.78                30
 12/27/2023   06:44:29   (  71.31,  72.87) 12/27/2023   06:43:38  (  71.31,  72.93)    2.20                51
 12/29/2023   17:56:57   (  71.45, -95.48) 12/29/2023   17:57:37  (  71.43, -95.42)    3.22                40
 12/29/2023   18:47:38   ( -71.29,  72.11) 12/29/2023   18:47:02  ( -71.30,  72.03)    2.92                36