Simultaneous Nadir Overpasses (SNOs) between NOAA-21 and TERRA
TLE Epoch: 2023 3 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)
 04/01/2023   15:25:03   ( -71.48, 122.76) 04/01/2023   15:26:09  ( -71.35, 125.44)   96.06                66
 04/01/2023   16:15:30   (  70.49, -68.26) 04/01/2023   16:15:46  (  70.47, -68.25)    1.76                16
 04/01/2023   17:06:11   ( -70.34,  99.28) 04/01/2023   17:05:12  ( -70.36,  99.25)    2.41                59
 04/04/2023   04:18:45   ( -70.98, -69.84) 04/04/2023   04:19:56  ( -70.85, -68.78)   41.11                71
 04/04/2023   05:09:21   (  70.45,  98.32) 04/04/2023   05:09:24  (  70.46,  98.30)    1.11                 3
 04/04/2023   06:00:03   ( -70.36, -94.22) 04/04/2023   05:58:50  ( -70.35, -94.21)    1.24                73
 04/06/2023   17:12:29   ( -70.59,  97.33) 04/06/2023   17:13:38  ( -70.57,  97.37)    2.36                69
 04/06/2023   18:03:12   (  70.43, -95.11) 04/06/2023   18:03:01  (  70.45, -95.14)    2.67                11
 04/06/2023   18:53:45   ( -69.86,  73.08) 04/06/2023   18:52:35  ( -69.90,  71.73)   51.73                70
 04/09/2023   06:06:19   ( -70.57, -96.12) 04/09/2023   06:07:13  ( -70.57, -96.05)    2.42                54
 04/09/2023   06:57:02   (  70.42,  71.44) 04/09/2023   06:56:36  (  70.45,  71.44)    3.39                26
 04/11/2023   19:00:09   ( -70.52,  70.50) 04/11/2023   19:00:49  ( -70.52,  70.45)    1.91                40
 04/11/2023   19:50:53   (  70.42,-122.04) 04/11/2023   19:50:12  (  70.40,-122.06)    2.71                41