Simultaneous Nadir Overpasses (SNOs) between NOAA-21 and TERRA
TLE Epoch: 2023 1 30.  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   ( -70.40,  62.74) 01/30/2023   19:33:43  ( -70.38,  62.73)    3.03                63
 01/30/2023   20:23:24   (  70.29,-129.77) 01/30/2023   20:23:06  (  70.30,-129.71)    2.79                18
 01/30/2023   21:13:52   ( -69.46,  38.78) 01/30/2023   21:12:44  ( -69.52,  36.85)   75.24                68
 02/02/2023   08:26:33   ( -70.39,-130.72) 02/02/2023   08:27:41  ( -70.40,-130.75)    1.42                68
 02/02/2023   09:17:17   (  70.28,  36.76) 02/02/2023   09:17:05  (  70.26,  36.72)    2.47                12
 02/02/2023   10:07:49   ( -69.66,-154.99) 02/02/2023   10:06:39  ( -69.71,-156.41)   55.08                70
 02/04/2023   21:20:27   ( -70.44,  35.73) 02/04/2023   21:21:38  ( -70.46,  35.82)    3.96                71
 02/04/2023   22:11:11   (  70.33,-156.79) 02/04/2023   22:11:02  (  70.31,-156.73)    2.92                 9
 02/04/2023   23:01:45   ( -69.81,  11.31) 02/04/2023   23:00:34  ( -69.87,  10.30)   39.04                71
 02/07/2023   10:14:22   ( -70.59,-158.00) 02/07/2023   10:15:33  ( -70.55,-157.56)   17.14                71
 02/07/2023   11:05:03   (  70.33,   9.73) 02/07/2023   11:04:58  (  70.34,   9.80)    2.97                 5
 02/07/2023   11:55:40   ( -69.97, 177.59) 02/07/2023   11:54:28  ( -70.02, 176.99)   23.39                72
 02/09/2023   23:08:18   ( -70.76,   8.26) 02/09/2023   23:09:29  ( -70.61,   9.03)   32.64                71
 02/09/2023   23:58:56   (  70.34, 176.24) 02/09/2023   23:58:55  (  70.35, 176.30)    2.56                 1
 02/10/2023   00:49:36   ( -70.14, -16.13) 02/10/2023   00:48:23  ( -70.14, -16.34)    7.96                73
 02/12/2023   12:02:13   ( -70.88, 174.59) 02/12/2023   12:03:23  ( -70.77, 175.76)   44.26                70
 02/12/2023   12:52:49   (  70.36, -17.27) 02/12/2023   12:52:52  (  70.33, -17.23)    3.10                 3
 02/12/2023   13:43:30   ( -70.20, 150.29) 02/12/2023   13:42:19  ( -70.19, 150.21)    3.42                71