Simultaneous Nadir Overpasses (SNOs) between NOAA-21 and TERRA
TLE Epoch: 2025 10 20.  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)
 10/22/2025   07:18:13   (  74.51,  58.25) 10/22/2025   07:19:05  (  74.51,  58.31)    1.95                52
 10/22/2025   08:08:55   ( -74.45,-134.25) 10/22/2025   08:08:26  ( -74.44,-134.19)    2.20                29
 10/24/2025   17:39:48   ( -74.51,  82.87) 10/24/2025   17:40:29  ( -74.50,  82.89)    1.42                41
 10/24/2025   18:30:32   (  74.40,-109.53) 10/24/2025   18:29:49  (  74.41,-109.65)    3.78                43
 10/27/2025   04:01:25   (  74.47, 107.56) 10/27/2025   04:01:51  (  74.49, 107.47)    3.03                26
 10/27/2025   04:52:07   ( -74.40, -84.92) 10/27/2025   04:51:12  ( -74.41, -85.04)    3.73                55
 10/29/2025   14:23:00   ( -74.48, 132.16) 10/29/2025   14:23:13  ( -74.51, 132.12)    3.44                13
 10/29/2025   15:13:45   (  74.42, -60.39) 10/29/2025   15:12:33  (  74.42, -60.41)    0.91                72
 10/31/2025   23:54:00   ( -74.90, -11.71) 10/31/2025   23:55:10  ( -74.77, -10.30)   43.34                70
 11/01/2025   00:44:37   (  74.47, 156.78) 11/01/2025   00:44:34  (  74.48, 156.67)    3.55                 3
 11/01/2025   01:35:11   ( -73.99, -34.69) 11/01/2025   01:34:02  ( -74.04, -36.66)   60.60                69
 11/03/2025   10:15:30   (  74.57,  13.80) 11/03/2025   10:16:34  (  74.56,  13.80)    1.24                64
 11/03/2025   11:06:12   ( -74.48,-178.64) 11/03/2025   11:05:55  ( -74.48,-178.72)    2.45                17