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: 10/8/2025
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 10/09/2025 03:51:01 -76.32, -48.47 97.10 10/09/2025 03:51:16 -76.33, -48.49 97.09 1.41 15
2 10/09/2025 04:41:45 76.27, 119.03 82.88 10/09/2025 04:40:43 76.27, 118.95 82.86 2.27 62
3 10/11/2025 19:17:04 76.77,-101.65 84.28 10/11/2025 19:18:11 76.68, -99.09 84.32 66.25 67
4 10/11/2025 20:07:38 -76.32, 67.47 96.08 10/11/2025 20:07:46 -76.31, 67.33 96.09 3.82 8
5 10/11/2025 20:58:22 76.27,-125.05 83.90 10/11/2025 20:57:12 76.30,-125.09 83.91 2.81 70
6 10/14/2025 11:33:34 76.48, 15.47 85.05 10/14/2025 11:34:46 76.39, 15.81 84.99 13.37 72
7 10/14/2025 12:24:16 -76.36,-176.79 95.03 10/14/2025 12:24:14 -76.36,-176.63 95.03 4.11 2
8 10/14/2025 13:14:55 76.10, -8.50 84.78 10/14/2025 13:13:44 76.15, -9.68 84.75 32.05 71
9 10/17/2025 03:50:09 76.40, 131.67 85.99 10/17/2025 03:51:14 76.41, 131.76 86.01 2.34 65
10 10/17/2025 04:40:52 -76.33, -60.74 94.06 10/17/2025 04:40:43 -76.34, -60.83 94.06 2.51 9
11 10/17/2025 05:31:24 75.76, 108.64 85.51 10/17/2025 05:30:20 75.78, 105.06 85.32 97.98 64
12 10/19/2025 20:06:44 76.38,-112.32 86.95 10/19/2025 20:07:41 76.40,-112.38 86.98 2.31 57
13 10/19/2025 20:57:28 -76.35, 55.11 93.07 10/19/2025 20:57:10 -76.33, 55.04 93.09 2.77 18

Figure of FY3D and LANDSAT-8 satellite orbits during SNOs since TLE Epoch: 10/8/2025
SNOs_Map_FY3D_LANDSAT-8_20251008.jpg

Download SNOs between FY3D and LANDSAT-8 since TLE EPOCH: 10/08/2025 in txt file.

Historial Predications of SNOs between FY3D and LANDSAT-8