Simultaneous Nadir Overpasses (SNOs) Predictions

Prediction of SNOs between FY3D and TERRA Satellite Orbit:

Table of predicted SNOs for the next 14.0 days since TLE Epoch: 10/18/2025
Index Date (FY3D) Time (FY3D) Lat,Lon (FY3D) SZA (FY3D ) Date (TERRA) Time (TERRA) Lat,Lon (TERRA) SZA (TERRA ) Distance(km) Time Diff (sec)
1 10/19/2025 19:16:47 -78.33, 71.05 91.43 10/19/2025 19:17:45 -78.36, 71.10 91.40 3.27 58
2 10/19/2025 20:07:31 78.31,-121.48 88.56 10/19/2025 20:07:05 78.29,-121.55 88.54 2.51 26
3 10/22/2025 05:38:11 78.36, 95.61 89.47 10/22/2025 05:39:09 78.33, 95.57 89.44 3.24 58
4 10/22/2025 06:28:55 -78.33, -96.90 90.55 10/22/2025 06:28:29 -78.30, -96.88 90.58 2.65 26
5 10/24/2025 15:59:34 -78.35, 120.40 89.70 10/24/2025 16:00:32 -78.36, 120.31 89.68 2.42 58
6 10/24/2025 16:50:18 78.33, -72.16 90.30 10/24/2025 16:49:51 78.34, -72.12 90.31 1.54 27
7 10/27/2025 02:20:57 78.35, 145.08 91.15 10/27/2025 02:21:54 78.37, 144.95 91.16 3.20 57
8 10/27/2025 03:11:41 -78.32, -47.40 88.88 10/27/2025 03:11:14 -78.34, -47.52 88.86 3.27 27
9 10/29/2025 12:42:20 -78.39, 169.58 88.01 10/29/2025 12:43:15 -78.38, 169.63 88.02 1.35 55
10 10/29/2025 13:33:03 78.34, -22.77 91.95 10/29/2025 13:32:34 78.36, -22.79 91.98 2.97 29
11 10/31/2025 23:03:42 78.38,-165.61 92.77 10/31/2025 23:04:36 78.38,-165.77 92.77 3.61 54

Figure of FY3D and TERRA satellite orbits during SNOs since TLE Epoch: 10/18/2025
SNOs_Map_FY3D_TERRA_20251019.jpg

Download SNOs between FY3D and TERRA since TLE EPOCH: 10/18/2025 in txt file.

Historial Predications of SNOs between FY3D and TERRA