Simultaneous Nadir Overpasses (SNOs) between NOAA-21 and TERRA
TLE Epoch: 2023 12 5.  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)
 12/07/2023   03:46:59   ( -71.94, -63.86) 12/07/2023   03:48:08  ( -71.81, -62.16)   60.39                69
 12/07/2023   04:37:32   (  71.27, 104.66) 12/07/2023   04:37:39  (  71.26, 104.60)    2.38                 7
 12/07/2023   05:28:14   ( -71.17, -87.85) 12/07/2023   05:27:03  ( -71.18, -87.86)    1.62                71
 12/09/2023   16:40:43   ( -71.31, 103.80) 12/09/2023   16:41:05  ( -71.30, 103.77)    1.82                22
 12/09/2023   17:31:27   (  71.21, -88.71) 12/09/2023   17:30:28  (  71.18, -88.75)    3.34                59
 12/12/2023   04:43:56   (  71.36, 102.92) 12/12/2023   04:44:28  (  71.37, 103.00)    3.16                32
 12/12/2023   05:34:38   ( -71.26, -89.58) 12/12/2023   05:33:53  ( -71.24, -89.55)    2.44                45
 12/14/2023   16:47:06   ( -71.36, 102.12) 12/14/2023   16:47:53  ( -71.39, 102.15)    2.97                47
 12/14/2023   17:37:50   (  71.27, -90.40) 12/14/2023   17:37:16  (  71.27, -90.38)    1.07                34
 12/17/2023   04:50:18   (  71.38, 101.29) 12/17/2023   04:51:16  (  71.39, 101.27)    0.64                58
 12/17/2023   05:41:00   ( -71.28, -91.21) 12/17/2023   05:40:41  ( -71.26, -91.28)    3.50                19