Simultaneous Nadir Overpasses (SNOs) between NOAA-21 and TERRA
TLE Epoch: 2025 4 19.  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)
 04/20/2025   11:50:42   (  74.34,  -9.38) 04/20/2025   11:51:48  (  74.25,  -6.63)   83.03                66
 04/20/2025   12:41:12   ( -73.62, 159.69) 04/20/2025   12:41:20  ( -73.64, 159.69)    1.86                 8
 04/20/2025   13:31:54   (  73.46, -32.62) 04/20/2025   13:30:41  (  73.51, -32.91)   10.66                73
 04/22/2025   23:02:49   (  73.65,-175.79) 04/22/2025   23:03:15  (  73.64,-175.83)    2.01                26
 04/22/2025   23:53:32   ( -73.58,  -8.30) 04/22/2025   23:52:37  ( -73.56,  -8.34)    2.81                55
 04/25/2025   09:24:25   ( -73.68,-151.25) 04/25/2025   09:25:11  ( -73.66,-151.32)    3.16                46
 04/25/2025   10:15:09   (  73.62,  16.20) 04/25/2025   10:14:30  (  73.62,  16.27)    2.01                39
 04/27/2025   19:46:02   (  73.73,-126.78) 04/27/2025   19:47:03  (  73.73,-126.69)    2.75                61
 04/27/2025   20:36:44   ( -73.61,  40.83) 04/27/2025   20:36:26  ( -73.61,  40.72)    3.51                18
 04/30/2025   06:07:43   ( -74.07,-103.00) 04/30/2025   06:08:53  ( -73.96,-101.73)   41.02                70
 04/30/2025   06:58:20   (  73.67,  65.29) 04/30/2025   06:58:16  (  73.69,  65.37)    3.26                 4
 04/30/2025   07:48:55   ( -73.20,-126.32) 04/30/2025   07:47:45  ( -73.26,-127.84)   49.39                70
 05/02/2025   17:19:55   ( -73.68,  89.88) 05/02/2025   17:20:11  ( -73.68,  89.83)    1.67                16