Simultaneous Nadir Overpasses (SNOs) between NOAA-21 and TERRA
TLE Epoch: 2023 8 12.  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)
 08/13/2023   10:57:13   (  71.24,   9.90) 08/13/2023   10:58:24  (  71.11,  10.60)   29.01                71
 08/13/2023   11:47:49   ( -70.84, 177.90) 08/13/2023   11:47:52  ( -70.84, 177.84)    2.17                 3
 08/13/2023   12:38:30   (  70.57, -14.36) 08/13/2023   12:37:17  (  70.64, -14.81)   18.07                73
 08/15/2023   23:50:59   (  70.94, 176.94) 08/15/2023   23:51:46  (  70.95, 176.99)    1.70                47
 08/16/2023   00:41:41   ( -70.85, -15.59) 08/16/2023   00:41:11  ( -70.84, -15.52)    2.51                30
 08/18/2023   11:54:22   ( -71.83, 174.59) 08/18/2023   11:55:28  ( -71.77, 177.30)   94.23                66
 08/18/2023   12:44:50   (  70.90, -16.46) 08/18/2023   12:45:05  (  70.92, -16.41)    2.72                15
 08/18/2023   13:35:32   ( -70.81, 151.01) 08/18/2023   13:34:30  ( -70.81, 151.08)    2.76                62
 08/21/2023   00:47:57   ( -70.97, -17.36) 08/21/2023   00:49:01  ( -70.96, -17.35)    1.23                64
 08/21/2023   01:38:41   (  70.87, 150.12) 08/21/2023   01:38:24  (  70.87, 150.16)    1.63                17
 08/21/2023   02:29:09   ( -70.04, -41.25) 08/21/2023   02:28:01  ( -70.10, -43.30)   78.13                68
 08/23/2023   13:41:48   ( -70.95, 149.22) 08/23/2023   13:42:19  ( -70.94, 149.27)    1.92                31
 08/23/2023   14:32:31   (  70.80, -43.22) 08/23/2023   14:31:43  (  70.79, -43.30)    2.94                48
 08/26/2023   01:44:58   (  71.13, 148.12) 08/26/2023   01:46:10  (  71.06, 148.45)   13.92                72
 08/26/2023   02:35:37   ( -70.88, -44.13) 08/26/2023   02:35:36  ( -70.90, -44.15)    3.05                 1