Simultaneous Nadir Overpasses (SNOs) Predictions

Prediction of SNOs between FY3D and LANDSAT-8 Satellite Orbit:

Table of predicted SNOs for the next 14.0 days since TLE Epoch: 10/22/2025
Index Date (FY3D) Time (FY3D) Lat,Lon (FY3D) SZA (FY3D ) Date (LANDSAT-8) Time (LANDSAT-8) Lat,Lon (LANDSAT-8) SZA (LANDSAT-8 ) Distance(km) Time Diff (sec)
1 10/22/2025 12:23:21 76.41, 3.49 87.93 10/22/2025 12:24:09 76.38, 3.45 87.91 3.05 48
2 10/22/2025 13:14:04 -76.34, 171.07 92.12 10/22/2025 13:13:37 -76.35, 170.98 92.12 2.58 27
3 10/25/2025 04:39:57 76.41, 119.42 88.87 10/25/2025 04:40:35 76.41, 119.43 88.88 0.36 38
4 10/25/2025 05:30:41 -76.38, -73.16 91.15 10/25/2025 05:30:03 -76.38, -73.03 91.15 3.43 38
5 10/27/2025 20:56:33 76.42,-124.68 89.79 10/27/2025 20:57:01 76.41,-124.69 89.79 1.02 28
6 10/27/2025 21:47:16 -76.39, 42.74 90.23 10/27/2025 21:46:28 -76.38, 42.86 90.24 3.21 48
7 10/30/2025 13:13:08 76.43, -8.82 90.69 10/30/2025 13:13:25 76.42, -8.75 90.69 2.52 17
8 10/30/2025 14:03:51 -76.36, 158.78 89.36 10/30/2025 14:02:54 -76.35, 158.65 89.39 3.45 57
9 11/02/2025 04:39:10 -76.92, -62.19 88.08 11/02/2025 04:40:16 -76.81, -59.14 88.01 78.05 66
10 11/02/2025 05:29:43 76.42, 107.17 91.54 11/02/2025 05:29:50 76.41, 107.10 91.53 2.28 7
11 11/02/2025 06:20:27 -76.38, -85.39 88.48 11/02/2025 06:19:18 -76.38, -85.34 88.49 1.45 69
12 11/04/2025 20:55:35 -76.48, 55.54 87.59 11/04/2025 20:56:47 -76.48, 55.62 87.57 2.22 72
13 11/04/2025 21:46:18 76.41,-136.87 92.37 11/04/2025 21:46:14 76.41,-136.99 92.36 3.28 4

Figure of FY3D and LANDSAT-8 satellite orbits during SNOs since TLE Epoch: 10/22/2025
SNOs_Map_FY3D_LANDSAT-8_20251022.jpg

Download SNOs between FY3D and LANDSAT-8 since TLE EPOCH: 10/22/2025 in txt file.

Historial Predications of SNOs between FY3D and LANDSAT-8