Simultaneous Nadir Overpasses (SNOs) between NOAA-21 and TERRA
TLE Epoch: 2023 1 28.  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)
 01/28/2023   06:38:46   ( -70.38,-103.74) 01/28/2023   06:39:44  ( -70.38,-103.75)    0.08                58
 01/28/2023   07:29:30   (  70.26,  63.75) 01/28/2023   07:29:08  (  70.26,  63.74)    0.83                22
 01/28/2023   08:19:55   ( -69.28,-127.48) 01/28/2023   08:18:48  ( -69.36,-129.84)   93.15                67
 01/30/2023   19:32:40   ( -70.41,  62.72) 01/30/2023   19:33:42  ( -70.42,  62.80)    2.76                62
 01/30/2023   20:23:24   (  70.30,-129.79) 01/30/2023   20:23:06  (  70.29,-129.73)    2.62                18
 01/30/2023   21:13:52   ( -69.47,  38.76) 01/30/2023   21:12:44  ( -69.50,  36.84)   75.13                68
 02/02/2023   08:26:33   ( -70.40,-130.74) 02/02/2023   08:27:40  ( -70.43,-130.70)    3.01                67
 02/02/2023   09:17:17   (  70.29,  36.74) 02/02/2023   09:17:04  (  70.29,  36.76)    0.81                13
 02/02/2023   10:07:48   ( -69.62,-154.93) 02/02/2023   10:06:39  ( -69.68,-156.44)   58.75                69
 02/04/2023   21:20:26   ( -70.40,  35.78) 02/04/2023   21:21:38  ( -70.41,  35.76)    1.07                72
 02/04/2023   22:11:10   (  70.30,-156.74) 02/04/2023   22:11:01  (  70.32,-156.71)    2.66                 9
 02/04/2023   23:01:44   ( -69.78,  11.36) 02/04/2023   23:00:33  ( -69.88,  10.32)   41.28                71
 02/07/2023   10:14:22   ( -70.57,-157.96) 02/07/2023   10:15:33  ( -70.53,-157.58)   14.84                71
 02/07/2023   11:05:03   (  70.31,   9.76) 02/07/2023   11:04:58  (  70.32,   9.78)    1.32                 5
 02/07/2023   11:55:40   ( -69.95, 177.63) 02/07/2023   11:54:28  ( -70.00, 176.97)   25.66                72
 02/09/2023   23:08:16   ( -70.69,   8.37) 02/09/2023   23:09:27  ( -70.62,   9.04)   26.32                71
 02/09/2023   23:58:55   (  70.33, 176.26) 02/09/2023   23:58:53  (  70.35, 176.31)    2.83                 2
 02/10/2023   00:49:34   ( -70.07, -16.03) 02/10/2023   00:48:21  ( -70.14, -16.33)   13.78                73