Simultaneous Nadir Overpasses (SNOs) between NOAA-21 and TERRA
TLE Epoch: 2025 9 16.  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)
 09/18/2025   07:56:51   (  74.30,  49.14) 09/18/2025   07:57:17  (  74.31,  49.06)    2.86                26
 09/18/2025   08:47:34   ( -74.25,-143.43) 09/18/2025   08:46:39  ( -74.25,-143.40)    1.01                55
 09/20/2025   18:18:30   ( -74.35,  73.60) 09/20/2025   18:18:51  ( -74.33,  73.67)    2.76                21
 09/20/2025   19:09:14   (  74.25,-118.84) 09/20/2025   19:08:10  (  74.23,-118.88)    2.57                64
 09/23/2025   04:40:10   (  74.35,  98.19) 09/23/2025   04:40:21  (  74.34,  98.26)    2.38                11
 09/23/2025   05:30:52   ( -74.26, -94.26) 09/23/2025   05:29:44  ( -74.24, -94.31)    2.65                68
 09/25/2025   14:11:17   (  74.98, -46.25) 09/25/2025   14:12:23  (  74.90, -43.51)   79.73                66
 09/25/2025   15:01:47   ( -74.31, 122.88) 09/25/2025   15:01:55  ( -74.33, 122.80)    3.18                 8
 09/25/2025   15:52:28   (  74.06, -69.19) 09/25/2025   15:51:16  (  74.12, -69.99)   25.13                72
 09/28/2025   00:32:51   ( -74.80, -21.16) 09/28/2025   00:34:00  ( -74.72, -19.39)   52.45                69
 09/28/2025   01:23:28   (  74.36, 147.32) 09/28/2025   01:23:24  (  74.36, 147.44)    3.66                 4
 09/28/2025   02:14:02   ( -73.88, -44.16) 09/28/2025   02:12:53  ( -73.94, -45.82)   51.69                69
 09/30/2025   10:54:23   (  74.42,   4.44) 09/30/2025   10:55:35  (  74.42,   4.48)    1.29                72
 09/30/2025   11:45:05   ( -74.34, 171.99) 09/30/2025   11:44:58  ( -74.32, 171.91)    3.35                 7