Simultaneous Nadir Overpasses (SNOs) between NOAA-21 and TERRA
TLE Epoch: 2023 9 21.  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)
 09/22/2023   18:34:15   (  71.57,-104.96) 09/22/2023   18:35:24  (  71.46,-103.59)   49.92                69
 09/22/2023   19:24:47   ( -71.02,  63.32) 09/22/2023   19:24:54  ( -71.03,  63.39)    3.26                 7
 09/22/2023   20:15:30   (  70.84,-129.09) 09/22/2023   20:14:18  (  70.86,-129.20)    4.82                72
 09/25/2023   07:27:59   (  71.04,  62.48) 09/25/2023   07:28:41  (  71.05,  62.45)    2.20                42
 09/25/2023   08:18:41   ( -70.95,-130.05) 09/25/2023   08:18:06  ( -70.96,-130.04)    1.28                35
 09/27/2023   19:31:15   ( -71.41,  61.05) 09/27/2023   19:32:26  ( -71.29,  61.83)   30.70                71
 09/27/2023   20:21:53   (  70.98,-130.91) 09/27/2023   20:21:52  (  70.99,-130.97)    2.41                 1
 09/27/2023   21:12:32   ( -70.74,  36.82) 09/27/2023   21:11:19  ( -70.80,  36.39)   17.03                73
 09/30/2023   08:25:03   ( -71.05,-131.81) 09/30/2023   08:25:40  ( -71.03,-131.88)    3.17                37
 09/30/2023   09:15:47   (  70.94,  35.69) 09/30/2023   09:15:02  (  70.95,  35.65)    1.74                45
 10/02/2023   20:28:15   (  71.11,-132.70) 10/02/2023   20:29:24  (  71.09,-132.77)    3.29                69
 10/02/2023   21:18:57   ( -71.01,  34.78) 10/02/2023   21:18:49  ( -71.02,  34.78)    0.95                 8