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: 8/20/2025
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 08/22/2025 00:32:49 -76.15, 0.43 115.55 08/22/2025 00:33:22 -76.14, 0.37 115.55 2.02 33
2 08/22/2025 01:23:34 76.10, 167.91 64.43 08/22/2025 01:22:48 76.12, 167.96 64.44 2.69 46
3 08/24/2025 16:49:29 -76.17, 116.24 114.60 08/24/2025 16:49:49 -76.18, 116.39 114.59 4.20 20
4 08/24/2025 17:40:14 76.13, -76.28 65.37 08/24/2025 17:39:16 76.12, -76.18 65.35 3.22 58
5 08/27/2025 08:15:36 76.63, 63.10 66.72 08/27/2025 08:16:43 76.53, 65.77 66.73 69.97 67
6 08/27/2025 09:06:09 -76.16,-127.80 113.68 08/27/2025 09:06:18 -76.16,-127.78 113.67 0.85 9
7 08/27/2025 09:56:54 76.11, 39.67 66.30 08/27/2025 09:55:45 76.09, 39.64 66.27 2.46 69
8 08/30/2025 00:32:07 76.22,-179.43 67.33 08/30/2025 00:33:18 76.20,-179.41 67.32 2.00 71
9 08/30/2025 01:22:49 -76.15, -11.85 112.73 08/30/2025 01:22:46 -76.18, -11.84 112.70 3.71 3
10 08/30/2025 02:13:27 75.79, 156.72 66.99 08/30/2025 02:12:18 75.86, 154.82 66.97 52.50 69
11 09/01/2025 16:48:47 76.21, -63.51 68.30 09/01/2025 16:49:46 76.20, -63.52 68.30 1.54 59
12 09/01/2025 17:39:30 -76.18, 103.92 111.72 09/01/2025 17:39:14 -76.18, 104.05 111.72 3.56 16

Figure of FY3D and LANDSAT-8 satellite orbits during SNOs since TLE Epoch: 8/20/2025
SNOs_Map_FY3D_LANDSAT-8_20250821.jpg

Download SNOs between FY3D and LANDSAT-8 since TLE EPOCH: 08/20/2025 in txt file.

Historial Predications of SNOs between FY3D and LANDSAT-8