Simultaneous Nadir Overpasses (SNOs) between NOAA-21 and TERRA
TLE Epoch: 2023 9 15.  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)
 09/15/2023   05:33:48   (  71.03,  91.06) 09/15/2023   05:34:41  (  71.01,  91.01)    2.54                53
 09/15/2023   06:24:30   ( -70.95,-101.49) 09/15/2023   06:24:05  ( -70.95,-101.43)    2.24                25
 09/17/2023   17:37:12   ( -71.78,  88.94) 09/17/2023   17:38:20  ( -71.68,  91.09)   75.76                68
 09/17/2023   18:27:43   (  70.99,-102.36) 09/17/2023   18:27:54  (  70.98,-102.37)    0.75                11
 09/17/2023   19:18:24   ( -70.85,  65.18) 09/17/2023   19:17:19  ( -70.88,  65.12)    3.33                65
 09/20/2023   06:30:52   ( -71.02,-103.21) 09/20/2023   06:31:43  ( -71.03,-103.28)    2.69                51
 09/20/2023   07:21:37   (  70.96,  64.21) 09/20/2023   07:21:05  (  70.97,  64.29)    3.16                32
 09/22/2023   18:34:14   (  71.56,-104.94) 09/22/2023   18:35:23  (  71.46,-103.58)   49.31                69
 09/22/2023   19:24:47   ( -71.00,  63.34) 09/22/2023   19:24:55  ( -70.99,  63.33)    1.42                 8
 09/22/2023   20:15:31   (  70.89,-129.16) 09/22/2023   20:14:18  (  70.87,-129.19)    2.59                73
 09/25/2023   07:27:59   (  71.03,  62.50) 09/25/2023   07:28:41  (  71.05,  62.45)    3.14                42
 09/25/2023   08:18:41   ( -70.94,-130.03) 09/25/2023   08:18:06  ( -70.97,-130.02)    3.61                35
 09/27/2023   19:31:15   ( -71.39,  61.08) 09/27/2023   19:32:26  ( -71.29,  61.84)   29.53                71
 09/27/2023   20:21:53   (  70.98,-130.89) 09/27/2023   20:21:52  (  70.99,-130.97)    2.95                 1
 09/27/2023   21:12:32   ( -70.72,  36.84) 09/27/2023   21:11:19  ( -70.80,  36.40)   18.23                73