Simultaneous Nadir Overpasses (SNOs) between NOAA-21 and TERRA
TLE Epoch: 2025 4 9.  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)
 04/10/2025   17:33:33   ( -74.39,  84.79) 04/10/2025   17:34:38  ( -74.31,  87.97)   95.75                65
 04/10/2025   18:24:02   (  73.59,-105.94) 04/10/2025   18:24:11  (  73.57,-105.95)    1.71                 9
 04/10/2025   19:14:45   ( -73.51,  61.55) 04/10/2025   19:13:32  ( -73.52,  61.59)    1.35                73
 04/13/2025   04:45:39   ( -73.62, -81.41) 04/13/2025   04:46:10  ( -73.60, -81.45)    2.84                31
 04/13/2025   05:36:23   (  73.56,  86.04) 04/13/2025   05:35:30  (  73.53,  86.09)    3.15                53
 04/15/2025   15:07:16   (  73.68, -56.95) 04/15/2025   15:08:05  (  73.67, -56.84)    3.67                49
 04/15/2025   15:57:58   ( -73.55, 110.67) 04/15/2025   15:57:27  ( -73.57, 110.63)    3.03                31
 04/18/2025   01:28:52   ( -73.67, -32.34) 04/18/2025   01:30:03  ( -73.67, -32.38)    1.18                71
 04/18/2025   02:19:36   (  73.62, 135.10) 04/18/2025   02:19:23  (  73.59, 135.13)    3.37                13
 04/20/2025   11:50:42   (  74.35,  -9.40) 04/20/2025   11:51:48  (  74.21,  -6.73)   82.04                66
 04/20/2025   12:41:12   ( -73.62, 159.69) 04/20/2025   12:41:20  ( -73.60, 159.63)    2.64                 8
 04/20/2025   13:31:53   (  73.42, -32.53) 04/20/2025   13:30:41  (  73.46, -32.99)   15.40                72
 04/22/2025   23:02:49   (  73.67,-175.81) 04/22/2025   23:03:13  (  73.67,-175.75)    2.11                24
 04/22/2025   23:53:32   ( -73.58,  -8.30) 04/22/2025   23:52:35  ( -73.60,  -8.24)    2.95                57