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: 10/10/2025
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 19:17:04 76.77,-101.62 84.27 10/11/2025 19:18:11 76.69, -99.05 84.33 66.13 67
2 10/11/2025 20:07:39 -76.35, 67.33 96.05 10/11/2025 20:07:46 -76.32, 67.36 96.08 3.45 7
3 10/11/2025 20:58:23 76.31,-125.18 83.93 10/11/2025 20:57:12 76.31,-125.05 83.92 3.50 71
4 10/14/2025 11:33:34 76.46, 15.51 85.04 10/14/2025 11:34:46 76.41, 15.89 85.02 11.44 72
5 10/14/2025 12:24:16 -76.35,-176.75 95.04 10/14/2025 12:24:15 -76.34,-176.71 95.05 1.90 1
6 10/14/2025 13:14:55 76.09, -8.45 84.77 10/14/2025 13:13:44 76.17, -9.60 84.77 32.08 71
7 10/17/2025 03:50:09 76.39, 131.74 85.97 10/17/2025 03:51:15 76.40, 131.74 86.00 1.80 66
8 10/17/2025 04:40:52 -76.36, -60.85 94.04 10/17/2025 04:40:43 -76.33, -60.86 94.07 3.14 9
9 10/17/2025 05:31:23 75.74, 108.70 85.50 10/17/2025 05:30:19 75.82, 105.19 85.37 96.40 64
10 10/19/2025 20:06:45 76.40,-112.40 86.97 10/19/2025 20:07:42 76.42,-112.32 87.00 2.87 57
11 10/19/2025 20:57:29 -76.37, 55.03 93.05 10/19/2025 20:57:11 -76.35, 55.09 93.07 2.91 18
12 10/22/2025 12:23:22 76.42, 3.43 87.94 10/22/2025 12:24:10 76.41, 3.55 87.95 3.27 48
13 10/22/2025 13:14:05 -76.35, 171.05 92.11 10/22/2025 13:13:39 -76.35, 170.97 92.12 2.00 26

Figure of FY3D and LANDSAT-8 satellite orbits during SNOs since TLE Epoch: 10/10/2025
SNOs_Map_FY3D_LANDSAT-8_20251010.jpg

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

Historial Predications of SNOs between FY3D and LANDSAT-8