Simultaneous Nadir Overpasses (SNOs) between NOAA-21 and TERRA
TLE Epoch: 2025 9 10.  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)
 09/11/2025   00:51:54   ( -74.33, -24.70) 09/11/2025   00:52:40  ( -74.33, -24.59)    3.39                46
 09/11/2025   01:42:38   (  74.24, 142.83) 09/11/2025   01:41:59  (  74.23, 142.88)    1.69                39
 09/13/2025   11:13:34   (  74.32,  -0.10) 09/13/2025   11:14:12  (  74.30,  -0.07)    2.60                38
 09/13/2025   12:04:16   ( -74.22, 167.47) 09/13/2025   12:03:34  ( -74.25, 167.47)    2.95                42
 09/15/2025   21:35:12   ( -74.31,  24.52) 09/15/2025   21:35:47  ( -74.31,  24.49)    0.83                35
 09/15/2025   22:25:56   (  74.22,-167.94) 09/15/2025   22:25:06  (  74.21,-168.06)    3.81                50
 09/18/2025   07:56:52   (  74.31,  49.10) 09/18/2025   07:57:18  (  74.30,  49.04)    2.35                26
 09/18/2025   08:47:35   ( -74.26,-143.46) 09/18/2025   08:46:40  ( -74.25,-143.40)    2.12                55
 09/20/2025   18:18:29   ( -74.31,  73.70) 09/20/2025   18:18:51  ( -74.33,  73.67)    2.50                22
 09/20/2025   19:09:14   (  74.27,-118.88) 09/20/2025   19:08:09  (  74.28,-118.77)    3.49                65
 09/23/2025   04:40:09   (  74.32,  98.27) 09/23/2025   04:40:21  (  74.34,  98.27)    2.43                12