Simultaneous Nadir Overpasses (SNOs) between NOAA-21 and TERRA
TLE Epoch: 2023 2 17.  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)
 02/17/2023   13:50:01   ( -70.56, 148.11) 02/17/2023   13:51:13  ( -70.52, 148.39)   11.21                72
 02/17/2023   14:40:43   (  70.34, -44.23) 02/17/2023   14:40:37  (  70.36, -44.19)    2.58                 6
 02/17/2023   15:31:19   ( -69.93, 123.71) 02/17/2023   15:30:07  ( -70.04, 123.01)   29.00                72
 02/20/2023   02:43:54   ( -70.46, -45.22) 02/20/2023   02:45:06  ( -70.44, -45.21)    2.10                72
 02/20/2023   03:34:38   (  70.35, 122.27) 02/20/2023   03:34:29  (  70.33, 122.28)    2.38                 9
 02/20/2023   04:25:12   ( -69.84, -69.63) 02/20/2023   04:24:01  ( -69.91, -70.66)   40.22                71
 02/22/2023   15:37:49   ( -70.43, 121.34) 02/22/2023   15:38:58  ( -70.43, 121.27)    2.60                69
 02/22/2023   16:28:33   (  70.32, -71.18) 02/22/2023   16:28:21  (  70.30, -71.24)    3.15                12
 02/22/2023   17:19:05   ( -69.70,  97.08) 02/22/2023   17:17:55  ( -69.78,  95.67)   54.96                70
 02/25/2023   04:31:45   ( -70.47, -72.20) 02/25/2023   04:32:48  ( -70.46, -72.15)    1.89                63
 02/25/2023   05:22:28   (  70.31,  95.36) 02/25/2023   05:22:11  (  70.34,  95.32)    3.20                17
 02/25/2023   06:12:57   ( -69.52, -96.15) 02/25/2023   06:11:49  ( -69.59, -98.06)   74.45                68
 02/27/2023   17:25:40   ( -70.47,  94.31) 02/27/2023   17:26:38  ( -70.45,  94.35)    2.09                58
 02/27/2023   18:16:23   (  70.31, -98.13) 02/27/2023   18:16:01  (  70.32, -98.19)    2.04                22
 02/27/2023   19:06:49   ( -69.36,  70.59) 02/27/2023   19:05:42  ( -69.41,  68.22)   92.90                67
 03/02/2023   06:19:34   ( -70.43, -99.11) 03/02/2023   06:20:27  ( -70.44, -99.14)    1.93                53
 03/02/2023   07:10:18   (  70.33,  68.36) 03/02/2023   07:09:49  (  70.35,  68.39)    3.29                29