Simultaneous Nadir Overpasses (SNOs) between NOAA-21 and TERRA
TLE Epoch: 2023 9 20.  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)
 09/20/2023   06:30:52   ( -71.02,-103.21) 09/20/2023   06:31:43  ( -71.04,-103.28)    3.05                51
 09/20/2023   07:21:37   (  70.95,  64.22) 09/20/2023   07:21:06  (  70.93,  64.22)    2.20                31
 09/22/2023   18:34:14   (  71.55,-104.92) 09/22/2023   18:35:24  (  71.42,-103.65)   47.26                70
 09/22/2023   19:24:47   ( -71.00,  63.35) 09/22/2023   19:24:55  ( -71.00,  63.34)    0.47                 8
 09/22/2023   20:15:31   (  70.88,-129.14) 09/22/2023   20:14:18  (  70.88,-129.18)    1.49                73
 09/25/2023   07:28:00   (  71.07,  62.43) 09/25/2023   07:28:41  (  71.07,  62.47)    1.44                41
 09/25/2023   08:18:41   ( -70.93,-130.02) 09/25/2023   08:18:07  ( -70.92,-130.10)    3.04                34
 09/27/2023   19:31:15   ( -71.39,  61.09) 09/27/2023   19:32:26  ( -71.30,  61.85)   28.72                71
 09/27/2023   20:21:54   (  71.02,-130.96) 09/27/2023   20:21:52  (  71.00,-130.95)    1.80                 2
 09/27/2023   21:12:32   ( -70.72,  36.85) 09/27/2023   21:11:19  ( -70.81,  36.41)   19.22                73
 09/30/2023   08:25:04   ( -71.08,-131.86) 09/30/2023   08:25:39  ( -71.09,-131.79)    2.72                35
 09/30/2023   09:15:48   (  70.97,  35.63) 09/30/2023   09:15:02  (  70.95,  35.65)    2.58                46
 10/02/2023   20:28:15   (  71.14,-132.76) 10/02/2023   20:29:22  (  71.13,-132.69)    2.50                67
 10/02/2023   21:18:56   ( -70.99,  34.81) 10/02/2023   21:18:48  ( -71.01,  34.77)    2.85                 8