Simultaneous Nadir Overpasses (SNOs) between NOAA-21 and TERRA
TLE Epoch: 2023 2 19.  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)
 02/20/2023   02:43:54   ( -70.45, -45.20) 02/20/2023   02:45:06  ( -70.46, -45.19)    1.44                72
 02/20/2023   03:34:38   (  70.33, 122.29) 02/20/2023   03:34:29  (  70.35, 122.31)    1.97                 9
 02/20/2023   04:25:12   ( -69.82, -69.61) 02/20/2023   04:24:01  ( -69.93, -70.64)   40.87                71
 02/22/2023   15:37:50   ( -70.46, 121.29) 02/22/2023   15:38:58  ( -70.47, 121.33)    1.45                68
 02/22/2023   16:28:34   (  70.35, -71.23) 02/22/2023   16:28:21  (  70.35, -71.18)    1.66                13
 02/22/2023   17:19:06   ( -69.73,  97.03) 02/22/2023   17:17:56  ( -69.76,  95.65)   53.42                70
 02/25/2023   04:31:45   ( -70.44, -72.15) 02/25/2023   04:32:50  ( -70.43, -72.22)    2.44                65
 02/25/2023   05:22:29   (  70.33,  95.33) 02/25/2023   05:22:12  (  70.36,  95.34)    3.29                17
 02/25/2023   06:12:58   ( -69.54, -96.18) 02/25/2023   06:11:50  ( -69.61, -98.04)   72.48                68
 02/27/2023   17:25:41   ( -70.47,  94.30) 02/27/2023   17:26:40  ( -70.46,  94.34)    2.38                59
 02/27/2023   18:16:24   (  70.31, -98.14) 02/27/2023   18:16:03  (  70.32, -98.19)    1.96                21
 02/27/2023   19:06:50   ( -69.37,  70.58) 02/27/2023   19:05:44  ( -69.42,  68.22)   92.61                66
 03/02/2023   06:19:36   ( -70.47, -99.18) 03/02/2023   06:20:30  ( -70.44, -99.16)    2.95                54
 03/02/2023   07:10:19   (  70.31,  68.38) 03/02/2023   07:09:53  (  70.30,  68.31)    2.84                26
 03/04/2023   19:13:29   ( -70.42,  67.41) 03/04/2023   19:14:18  ( -70.44,  67.36)    2.70                49
 03/04/2023   20:04:13   (  70.32,-125.12) 03/04/2023   20:03:40  (  70.35,-125.10)    3.35                33