Simultaneous Nadir Overpasses (SNOs) between NOAA-21 and TERRA
TLE Epoch: 2023 1 25.  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)
 01/25/2023   17:44:53   ( -70.37,  89.75) 01/25/2023   17:45:46  ( -70.35,  89.73)    2.38                53
 01/25/2023   18:35:37   (  70.26,-102.76) 01/25/2023   18:35:10  (  70.23,-102.78)    2.98                27
 01/28/2023   06:38:47   ( -70.40,-103.78) 01/28/2023   06:39:44  ( -70.41,-103.70)    3.04                57
 01/28/2023   07:29:31   (  70.29,  63.71) 01/28/2023   07:29:08  (  70.28,  63.77)    2.59                23
 01/28/2023   08:19:56   ( -69.30,-127.51) 01/28/2023   08:18:49  ( -69.33,-129.87)   92.88                67
 01/30/2023   19:32:40   ( -70.39,  62.76) 01/30/2023   19:33:43  ( -70.37,  62.73)    1.88                63
 01/30/2023   20:23:24   (  70.28,-129.76) 01/30/2023   20:23:06  (  70.29,-129.72)    2.17                18
 01/30/2023   21:13:52   ( -69.45,  38.80) 01/30/2023   21:12:44  ( -69.51,  36.85)   76.26                68
 02/02/2023   08:26:32   ( -70.39,-130.71) 02/02/2023   08:27:39  ( -70.41,-130.73)    2.52                67
 02/02/2023   09:17:16   (  70.28,  36.76) 02/02/2023   09:17:03  (  70.27,  36.73)    1.99                13
 02/02/2023   10:07:47   ( -69.61,-154.90) 02/02/2023   10:06:38  ( -69.66,-156.46)   60.63                69
 02/04/2023   21:20:25   ( -70.40,  35.79) 02/04/2023   21:21:36  ( -70.41,  35.76)    1.54                71
 02/04/2023   22:11:09   (  70.29,-156.73) 02/04/2023   22:10:59  (  70.31,-156.72)    1.96                10
 02/04/2023   23:01:43   ( -69.78,  11.37) 02/04/2023   23:00:32  ( -69.82,  10.25)   43.47                71
 02/07/2023   10:14:20   ( -70.52,-157.88) 02/07/2023   10:15:31  ( -70.47,-157.65)   10.47                71
 02/07/2023   11:05:02   (  70.32,   9.75) 02/07/2023   11:04:55  (  70.31,   9.79)    1.33                 7
 02/07/2023   11:55:38   ( -69.90, 177.70) 02/07/2023   11:54:26  ( -69.94, 176.91)   30.74                72