Simultaneous Nadir Overpasses (SNOs) Predictions

Prediction of SNOs between FY3D and AQUA Satellite Orbit:

Table of predicted SNOs for the next 14.0 days since TLE Epoch: 9/20/2025
Index Date (FY3D) Time (FY3D) Lat,Lon (FY3D) SZA (FY3D ) Date (AQUA) Time (AQUA) Lat,Lon (AQUA) SZA (AQUA ) Distance(km) Time Diff (sec)
1 09/22/2025 21:58:55 79.49,-158.54 79.57 09/22/2025 21:58:57 79.48,-158.38 79.55 3.18 2
2 09/25/2025 07:29:33 79.40, 59.63 80.39 09/25/2025 07:29:28 79.41, 59.58 80.40 1.27 5
3 09/27/2025 16:09:35 -79.63, 107.68 98.43 09/27/2025 16:10:47 -79.62, 107.79 98.45 2.35 72
4 09/27/2025 17:00:13 79.41, -83.07 81.33 09/27/2025 16:59:59 79.41, -82.97 81.32 2.26 14
5 09/30/2025 01:40:14 -79.58, -34.45 97.57 09/30/2025 01:41:17 -79.57, -34.42 97.58 0.85 63
6 09/30/2025 02:30:52 79.37, 134.75 82.20 09/30/2025 02:30:29 79.36, 134.78 82.20 0.79 23
7 10/02/2025 11:10:54 -79.56,-176.90 96.67 10/02/2025 11:11:47 -79.56,-176.87 96.67 0.71 53
8 10/02/2025 12:01:32 79.35, -7.74 83.11 10/02/2025 12:00:59 79.35, -7.70 83.11 0.78 33
9 10/04/2025 20:41:34 -79.55, 40.61 95.76 10/04/2025 20:42:16 -79.54, 40.70 95.77 2.08 42

Figure of FY3D and AQUA satellite orbits during SNOs since TLE Epoch: 9/20/2025
SNOs_Map_FY3D_AQUA_20250921.jpg

Download SNOs between FY3D and AQUA since TLE EPOCH: 09/20/2025 in txt file.

Historial Predications of SNOs between FY3D and AQUA