Simultaneous Nadir Overpasses (SNOs) between NOAA-21 and TERRA
TLE Epoch: 2023 12 14.  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)
 12/14/2023   16:47:06   ( -71.37, 102.10) 12/14/2023   16:47:54  ( -71.38, 102.12)    0.77                48
 12/14/2023   17:37:50   (  71.27, -90.41) 12/14/2023   17:37:17  (  71.27, -90.39)    0.85                33
 12/17/2023   04:50:18   (  71.37, 101.31) 12/17/2023   04:51:18  (  71.39, 101.27)    3.02                60
 12/17/2023   05:41:01   ( -71.32, -91.30) 12/17/2023   05:40:42  ( -71.31, -91.22)    3.39                19
 12/19/2023   16:53:30   ( -71.48, 100.32) 12/19/2023   16:54:42  ( -71.47, 100.50)    6.44                72
 12/19/2023   17:44:13   (  71.33, -92.10) 12/19/2023   17:44:06  (  71.30, -92.10)    2.45                 7
 12/19/2023   18:34:47   ( -70.81,  76.10) 12/19/2023   18:33:36  ( -70.89,  74.92)   44.02                71
 12/22/2023   04:56:50   (  71.90,  98.75) 12/22/2023   04:57:59  (  71.83, 100.21)   51.33                69
 12/22/2023   05:47:23   ( -71.34, -92.91) 12/22/2023   05:47:30  ( -71.36, -92.90)    2.60                 7
 12/22/2023   06:38:06   (  71.18,  74.67) 12/22/2023   06:36:54  (  71.20,  74.50)    6.00                72
 12/24/2023   17:50:35   (  71.36, -93.73) 12/24/2023   17:50:53  (  71.37, -93.76)    2.01                18
 12/24/2023   18:41:17   ( -71.25,  73.76) 12/24/2023   18:40:18  ( -71.24,  73.69)    3.21                59
 12/27/2023   05:53:45   ( -71.38, -94.56) 12/27/2023   05:54:17  ( -71.40, -94.60)    2.82                32
 12/27/2023   06:44:29   (  71.28,  72.92) 12/27/2023   06:43:40  (  71.28,  72.88)    1.62                49