Simultaneous Nadir Overpasses (SNOs) between NOAA-21 and TERRA
TLE Epoch: 2023 8 13.  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,   9.89) 08/13/2023   10:58:24  (  71.11,  10.60)   29.24                71
 08/13/2023   11:47:49   ( -70.84, 177.89) 08/13/2023   11:47:52  ( -70.84, 177.83)    2.27                 3
 08/13/2023   12:38:30   (  70.57, -14.36) 08/13/2023   12:37:17  (  70.63, -14.81)   17.90                73
 08/15/2023   23:50:59   (  70.94, 176.94) 08/15/2023   23:51:46  (  70.94, 176.98)    1.35                47
 08/16/2023   00:41:41   ( -70.85, -15.59) 08/16/2023   00:41:11  ( -70.83, -15.53)    2.83                30
 08/18/2023   11:54:22   ( -71.84, 174.59) 08/18/2023   11:55:28  ( -71.76, 177.28)   93.88                66
 08/18/2023   12:44:50   (  70.90, -16.47) 08/18/2023   12:45:05  (  70.91, -16.42)    1.69                15
 08/18/2023   13:35:32   ( -70.81, 151.01) 08/18/2023   13:34:30  ( -70.80, 151.07)    2.53                62
 08/21/2023   00:47:57   ( -70.98, -17.36) 08/21/2023   00:49:01  ( -70.95, -17.38)    3.31                64
 08/21/2023   01:38:41   (  70.87, 150.12) 08/21/2023   01:38:24  (  70.85, 150.14)    2.54                17
 08/21/2023   02:29:09   ( -70.04, -41.25) 08/21/2023   02:28:01  ( -70.09, -43.32)   78.76                68
 08/23/2023   13:41:48   ( -70.95, 149.21) 08/23/2023   13:42:19  ( -70.92, 149.23)    3.32                31
 08/23/2023   14:32:31   (  70.80, -43.22) 08/23/2023   14:31:42  (  70.82, -43.25)    3.28                49
 08/26/2023   01:44:59   (  71.13, 148.12) 08/26/2023   01:46:10  (  71.09, 148.49)   14.16                71
 08/26/2023   02:35:38   ( -70.88, -44.13) 08/26/2023   02:35:37  ( -70.87, -44.19)    2.38                 1
 08/26/2023   03:26:15   (  70.46, 123.85) 08/26/2023   03:25:04  (  70.50, 122.91)   34.99                71