Simultaneous Nadir Overpasses (SNOs) between NOAA-21 and TERRA
TLE Epoch: 2023 1 29.  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)
 01/30/2023   19:32:40   ( -70.39,  62.76) 01/30/2023   19:33:43  ( -70.39,  62.75)    0.24                63
 01/30/2023   20:23:24   (  70.28,-129.76) 01/30/2023   20:23:07  (  70.26,-129.77)    2.02                17
 01/30/2023   21:13:52   ( -69.45,  38.80) 01/30/2023   21:12:44  ( -69.53,  36.87)   75.48                68
 02/02/2023   08:26:34   ( -70.43,-130.79) 02/02/2023   08:27:41  ( -70.41,-130.73)    3.31                67
 02/02/2023   09:17:17   (  70.27,  36.78) 02/02/2023   09:17:05  (  70.27,  36.73)    1.87                12
 02/02/2023   10:07:49   ( -69.65,-154.97) 02/02/2023   10:06:39  ( -69.72,-156.39)   55.33                70
 02/04/2023   21:20:26   ( -70.43,  35.74) 02/04/2023   21:21:38  ( -70.41,  35.75)    2.80                72
 02/04/2023   22:11:10   (  70.32,-156.78) 02/04/2023   22:11:01  (  70.32,-156.72)    2.40                 9
 02/04/2023   23:01:44   ( -69.81,  11.32) 02/04/2023   23:00:33  ( -69.88,  10.31)   39.36                71
 02/07/2023   10:14:22   ( -70.59,-158.00) 02/07/2023   10:15:33  ( -70.54,-157.56)   16.99                71
 02/07/2023   11:05:03   (  70.33,   9.73) 02/07/2023   11:04:58  (  70.34,   9.80)    2.61                 5
 02/07/2023   11:55:40   ( -69.97, 177.60) 02/07/2023   11:54:28  ( -70.01, 176.99)   23.57                72
 02/09/2023   23:08:17   ( -70.71,   8.34) 02/09/2023   23:09:29  ( -70.60,   9.01)   27.80                72
 02/09/2023   23:58:56   (  70.35, 176.23) 02/09/2023   23:58:55  (  70.33, 176.28)    2.72                 1
 02/10/2023   00:49:35   ( -70.09, -16.06) 02/10/2023   00:48:23  ( -70.13, -16.36)   12.08                72