Simultaneous Nadir Overpasses (SNOs) between NOAA-21 and TERRA
TLE Epoch: 2023 1 27.  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   06:38:47   ( -70.40,-103.77) 01/28/2023   06:39:45  ( -70.36,-103.77)    3.53                58
 01/28/2023   07:29:31   (  70.28,  63.72) 01/28/2023   07:29:08  (  70.29,  63.79)    3.05                23
 01/28/2023   08:19:56   ( -69.29,-127.50) 01/28/2023   08:18:49  ( -69.34,-129.86)   92.80                67
 01/30/2023   19:32:40   ( -70.38,  62.78) 01/30/2023   19:33:43  ( -70.40,  62.77)    2.26                63
 01/30/2023   20:23:24   (  70.26,-129.74) 01/30/2023   20:23:07  (  70.27,-129.77)    1.08                17
 01/30/2023   21:13:52   ( -69.49,  38.74) 01/30/2023   21:12:43  ( -69.54,  36.88)   72.43                69
 02/02/2023   08:26:33   ( -70.42,-130.77) 02/02/2023   08:27:40  ( -70.40,-130.74)    2.61                67
 02/02/2023   09:17:16   (  70.26,  36.79) 02/02/2023   09:17:04  (  70.26,  36.71)    2.97                12
 02/02/2023   10:07:48   ( -69.64,-154.96) 02/02/2023   10:06:38  ( -69.71,-156.40)   56.43                70
 02/04/2023   21:20:26   ( -70.42,  35.75) 02/04/2023   21:21:37  ( -70.43,  35.78)    1.13                71
 02/04/2023   22:11:09   (  70.26,-156.69) 02/04/2023   22:11:01  (  70.28,-156.77)    3.43                 8
 02/04/2023   23:01:44   ( -69.80,  11.33) 02/04/2023   23:00:33  ( -69.84,  10.27)   41.06                71
 02/07/2023   10:14:21   ( -70.54,-157.91) 02/07/2023   10:15:33  ( -70.47,-157.66)   11.69                72
 02/07/2023   11:05:03   (  70.33,   9.73) 02/07/2023   11:04:57  (  70.32,   9.78)    2.14                 6
 02/07/2023   11:55:39   ( -69.92, 177.68) 02/07/2023   11:54:27  ( -70.00, 176.98)   28.41                72
 02/09/2023   23:08:16   ( -70.66,   8.42) 02/09/2023   23:09:28  ( -70.54,   8.94)   23.26                72
 02/09/2023   23:58:55   (  70.30, 176.31) 02/09/2023   23:58:53  (  70.33, 176.29)    3.37                 2
 02/10/2023   00:49:34   ( -70.04, -15.98) 02/10/2023   00:48:21  ( -70.12, -16.35)   16.84                73