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: 8/29/2025
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 08/29/2025 21:03:36 74.26,-147.45 65.50 08/29/2025 21:04:47 74.25,-147.54 65.47 3.00 71
2 08/29/2025 21:54:19 -74.19, 20.04 114.57 08/29/2025 21:54:09 -74.17, 19.97 114.58 2.85 10
3 09/01/2025 07:25:16 -74.29,-122.95 113.60 09/01/2025 07:26:24 -74.27,-122.93 113.64 2.34 68
4 09/01/2025 08:16:00 74.22, 44.54 66.34 09/01/2025 08:15:43 74.19, 44.56 66.31 3.35 17
5 09/03/2025 17:46:56 74.28, -98.34 67.27 09/03/2025 17:47:58 74.26, -98.40 67.23 2.95 62
6 09/03/2025 18:37:39 -74.21, 69.15 112.80 09/03/2025 18:37:20 -74.20, 69.14 112.81 1.08 19
7 09/06/2025 04:08:35 -74.28, -73.74 111.85 09/06/2025 04:09:34 -74.31, -73.74 111.84 3.43 59
8 09/06/2025 04:59:19 74.21, 93.75 68.08 09/06/2025 04:58:53 74.21, 93.72 68.10 1.39 26
9 09/08/2025 14:30:15 74.28, -49.15 69.05 09/08/2025 14:31:07 74.29, -49.22 69.05 2.55 52
10 09/08/2025 15:20:58 -74.21, 118.33 111.02 09/08/2025 15:20:30 -74.19, 118.22 111.02 3.77 28
11 09/11/2025 00:51:54 -74.29, -24.59 110.04 09/11/2025 00:52:43 -74.30, -24.64 110.03 2.37 49
12 09/11/2025 01:42:38 74.21, 142.91 69.90 09/11/2025 01:42:02 74.20, 142.80 69.89 3.73 36

Figure of NOAA-21 and TERRA satellite orbits during SNOs since TLE Epoch: 8/29/2025
SNOs_Map_NOAA-21_TERRA_20250829.jpg

Download SNOs between NOAA-21 and TERRA since TLE EPOCH: 08/29/2025 in txt file.

Historial Predications of SNOs between NOAA-21 and TERRA