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: 10/11/2025
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 10/11/2025 19:17:05 76.80,-101.74 84.29 10/11/2025 19:18:11 76.70, -99.00 84.35 70.58 66
2 10/11/2025 20:07:39 -76.34, 67.38 96.06 10/11/2025 20:07:46 -76.34, 67.40 96.06 0.74 7
3 10/11/2025 20:58:23 76.29,-125.13 83.92 10/11/2025 20:57:13 76.27,-125.16 83.88 2.36 70
4 10/14/2025 11:33:34 76.50, 15.39 85.06 10/14/2025 11:34:45 76.42, 15.93 85.03 16.15 71
5 10/14/2025 12:24:15 -76.34,-176.71 95.05 10/14/2025 12:24:14 -76.35,-176.68 95.04 0.85 1
6 10/14/2025 13:14:54 76.08, -8.41 84.76 10/14/2025 13:13:44 76.14, -9.73 84.73 35.79 70
7 10/17/2025 03:50:08 76.38, 131.77 85.97 10/17/2025 03:51:14 76.41, 131.76 86.01 3.58 66
8 10/17/2025 04:40:52 -76.35, -60.81 94.05 10/17/2025 04:40:43 -76.34, -60.84 94.07 1.77 9
9 10/17/2025 05:31:24 75.77, 108.58 85.53 10/17/2025 05:30:20 75.78, 105.06 85.32 96.26 64
10 10/19/2025 20:06:45 76.40,-112.38 86.96 10/19/2025 20:07:42 76.42,-112.32 87.00 2.93 57
11 10/19/2025 20:57:29 -76.37, 55.05 93.06 10/19/2025 20:57:11 -76.35, 55.09 93.08 2.14 18
12 10/22/2025 12:23:22 76.42, 3.44 87.94 10/22/2025 12:24:10 76.41, 3.53 87.94 2.76 48
13 10/22/2025 13:14:05 -76.35, 171.05 92.11 10/22/2025 13:13:39 -76.34, 170.94 92.13 3.01 26

Figure of FY3D and LANDSAT-8 satellite orbits during SNOs since TLE Epoch: 10/11/2025
SNOs_Map_FY3D_LANDSAT-8_20251011.jpg

Download SNOs between FY3D and LANDSAT-8 since TLE EPOCH: 10/11/2025 in txt file.

Historial Predications of SNOs between FY3D and LANDSAT-8