Simultaneous Nadir Overpasses (SNOs) between NOAA-21 and TERRA
TLE Epoch: 2023 12 8.  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)
 12/09/2023   16:40:43   ( -71.32, 103.78) 12/09/2023   16:41:04  ( -71.34, 103.84)    3.20                21
 12/09/2023   17:31:27   (  71.22, -88.73) 12/09/2023   17:30:27  (  71.23, -88.67)    2.61                60
 12/12/2023   04:43:56   (  71.36, 102.91) 12/12/2023   04:44:29  (  71.34, 102.95)    2.94                33
 12/12/2023   05:34:38   ( -71.26, -89.59) 12/12/2023   05:33:53  ( -71.26, -89.52)    2.64                45
 12/14/2023   16:47:06   ( -71.36, 102.13) 12/14/2023   16:47:55  ( -71.34, 102.07)    2.58                49
 12/14/2023   17:37:50   (  71.25, -90.38) 12/14/2023   17:37:17  (  71.29, -90.36)    3.49                33
 12/17/2023   04:50:19   (  71.41, 101.24) 12/17/2023   04:51:18  (  71.40, 101.29)    1.85                59
 12/17/2023   05:41:01   ( -71.31, -91.26) 12/17/2023   05:40:42  ( -71.32, -91.18)    3.53                19
 12/19/2023   16:53:31   ( -71.52, 100.26) 12/19/2023   16:54:42  ( -71.48, 100.52)   10.06                71
 12/19/2023   17:44:13   (  71.32, -92.08) 12/19/2023   17:44:06  (  71.31, -92.09)    0.70                 7