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: 10/13/2025
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 10/14/2025 11:33:33 76.45, 15.56 85.03 10/14/2025 11:34:45 76.42, 15.91 85.03 9.70 72
2 10/14/2025 12:24:15 -76.34,-176.71 95.05 10/14/2025 12:24:14 -76.34,-176.71 95.05 0.42 1
3 10/14/2025 13:14:54 76.08, -8.41 84.76 10/14/2025 13:13:44 76.13, -9.74 84.73 36.21 70
4 10/17/2025 03:50:08 76.38, 131.77 85.97 10/17/2025 03:51:14 76.39, 131.71 85.99 2.24 66
5 10/17/2025 04:40:52 -76.36, -60.83 94.04 10/17/2025 04:40:42 -76.37, -60.74 94.03 2.66 10
6 10/19/2025 20:06:45 76.40,-112.40 86.97 10/19/2025 20:07:42 76.39,-112.41 86.96 1.33 57
7 10/19/2025 20:57:29 -76.38, 55.01 93.05 10/19/2025 20:57:10 -76.37, 55.14 93.06 3.53 19
8 10/22/2025 12:23:21 76.39, 3.57 87.92 10/22/2025 12:24:09 76.41, 3.54 87.94 2.27 48
9 10/22/2025 13:14:05 -76.36, 171.00 92.10 10/22/2025 13:13:38 -76.34, 170.94 92.13 2.70 27
10 10/25/2025 04:39:56 76.39, 119.51 88.85 10/25/2025 04:40:35 76.40, 119.41 88.87 3.19 39
11 10/25/2025 05:30:40 -76.35, -73.05 91.17 10/25/2025 05:30:03 -76.38, -73.02 91.15 3.32 37
12 10/27/2025 20:56:33 76.44,-124.75 89.81 10/27/2025 20:57:01 76.42,-124.65 89.80 3.32 28

Figure of FY3D and LANDSAT-8 satellite orbits during SNOs since TLE Epoch: 10/13/2025
SNOs_Map_FY3D_LANDSAT-8_20251014.jpg

Download SNOs between FY3D and LANDSAT-8 since TLE EPOCH: 10/13/2025 in txt file.

Historial Predications of SNOs between FY3D and LANDSAT-8