Simultaneous Nadir Overpasses (SNOs) between NOAA-21 and TERRA
TLE Epoch: 2025 8 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)
 08/22/2025   13:58:44   ( -74.63, 137.83) 08/22/2025   13:59:53  ( -74.56, 139.54)   51.00                69
 08/22/2025   14:49:20   (  74.18, -53.68) 08/22/2025   14:49:18  (  74.19, -53.63)    1.88                 2
 08/22/2025   15:39:56   ( -73.75, 114.67) 08/22/2025   15:38:46  ( -73.79, 113.16)   47.07                70
 08/25/2025   00:20:20   (  74.46, 162.86) 08/25/2025   00:21:31  (  74.39, 163.70)   26.32                71
 08/25/2025   01:10:59   ( -74.19, -29.12) 08/25/2025   01:10:56  ( -74.16, -29.16)    3.42                 3
 08/25/2025   02:01:31   (  73.53, 139.78) 08/25/2025   02:00:24  (  73.62, 137.35)   76.97                67
 08/27/2025   10:41:59   ( -74.42,-172.46) 08/27/2025   10:43:10  ( -74.35,-171.84)   20.09                71
 08/27/2025   11:32:39   (  74.17,  -4.49) 08/27/2025   11:32:31  (  74.17,  -4.58)    2.70                 8
 08/27/2025   12:23:10   ( -73.50, 164.44) 08/27/2025   12:22:04  ( -73.53, 161.71)   86.21                66
 08/29/2025   21:03:36   (  74.26,-147.46) 08/29/2025   21:04:46  (  74.29,-147.43)    3.07                70
 08/29/2025   21:54:19   ( -74.18,  20.05) 08/29/2025   21:54:09  ( -74.18,  19.98)    2.31                10
 09/01/2025   07:25:16   ( -74.28,-122.93) 09/01/2025   07:26:24  ( -74.29,-122.89)    1.18                68
 09/01/2025   08:16:00   (  74.22,  44.54) 09/01/2025   08:15:43  (  74.20,  44.58)    3.09                17