Simultaneous Nadir Overpasses (SNOs) Predictions

Prediction of SNOs between NOAA-21 and TERRA Satellite Orbit:

Table of predicted SNOs for the next 14.0 days since TLE Epoch: 6/25/2025
Index Date (NOAA-21) Time (NOAA-21) Lat,Lon (NOAA-21) SZA (NOAA-21 ) Date (TERRA) Time (TERRA) Lat,Lon (TERRA) SZA (TERRA ) Distance(km) Time Diff (sec)
1 06/25/2025 06:08:54 73.91, 77.07 50.82 06/25/2025 06:09:02 73.92, 77.04 50.82 0.92 8
2 06/25/2025 06:59:36 -73.84,-115.44 129.27 06/25/2025 06:58:24 -73.82,-115.50 129.26 2.89 72
3 06/27/2025 16:30:34 -73.95, 101.57 129.05 06/27/2025 16:30:46 -73.93, 101.59 129.07 1.49 12
4 06/27/2025 17:21:18 73.83, -90.84 50.82 06/27/2025 17:20:06 73.85, -90.93 50.86 3.28 72
5 06/30/2025 02:52:17 73.94, 126.15 51.08 06/30/2025 02:52:29 73.95, 126.14 51.09 0.73 12
6 06/30/2025 03:42:59 -73.86, -66.33 129.01 06/30/2025 03:41:51 -73.85, -66.41 129.00 2.83 68
7 07/02/2025 13:13:58 -73.97, 150.67 128.71 07/02/2025 13:14:13 -73.99, 150.74 128.71 2.97 15
8 07/02/2025 14:04:43 73.91, -41.89 51.23 07/02/2025 14:03:33 73.90, -41.77 51.23 3.72 70
9 07/04/2025 23:35:41 73.98, 175.21 51.52 07/04/2025 23:35:56 73.98, 175.24 51.51 0.99 15
10 07/05/2025 00:26:23 -73.88, -17.24 128.59 07/05/2025 00:25:18 -73.87, -17.32 128.58 2.60 65
11 07/07/2025 09:57:22 -74.00,-160.25 128.21 07/07/2025 09:57:40 -73.99,-160.22 128.23 1.49 18

Figure of NOAA-21 and TERRA satellite orbits during SNOs since TLE Epoch: 6/25/2025
SNOs_Map_NOAA-21_TERRA_20250625.jpg

Download SNOs between NOAA-21 and TERRA since TLE EPOCH: 06/25/2025 in txt file.

Historial Predications of SNOs between NOAA-21 and TERRA