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: 8/21/2025
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 -76.16, 0.40 115.54 08/22/2025 00:33:22 -76.13, 0.35 115.56 3.20 33
2 08/22/2025 01:23:34 76.11, 167.89 64.44 08/22/2025 01:22:48 76.11, 167.94 64.44 1.57 46
3 08/24/2025 16:49:29 -76.18, 116.22 114.60 08/24/2025 16:49:49 -76.18, 116.37 114.60 3.96 20
4 08/24/2025 17:40:13 76.09, -76.14 65.34 08/24/2025 17:39:16 76.11, -76.20 65.35 2.84 57
5 08/27/2025 08:15:36 76.63, 63.09 66.72 08/27/2025 08:16:43 76.52, 65.75 66.72 69.65 67
6 08/27/2025 09:06:09 -76.16,-127.80 113.68 08/27/2025 09:06:18 -76.16,-127.80 113.68 0.35 9
7 08/27/2025 09:56:54 76.12, 39.67 66.30 08/27/2025 09:55:45 76.09, 39.62 66.26 3.49 69
8 08/30/2025 00:32:07 76.22,-179.42 67.32 08/30/2025 00:33:18 76.19,-179.43 67.31 2.36 71
9 08/30/2025 01:22:49 -76.14, -11.84 112.73 08/30/2025 01:22:46 -76.17, -11.86 112.70 3.23 3
10 08/30/2025 02:13:27 75.79, 156.73 66.99 08/30/2025 02:12:18 75.86, 154.79 66.96 53.32 69
11 09/01/2025 16:48:47 76.21, -63.48 68.29 09/01/2025 16:49:46 76.19, -63.55 68.29 2.19 59
12 09/01/2025 17:39:30 -76.18, 103.95 111.72 09/01/2025 17:39:14 -76.17, 104.03 111.73 2.20 16
13 09/04/2025 09:05:26 76.20, 52.45 69.28 09/04/2025 09:06:12 76.23, 52.45 69.32 3.09 46
14 09/04/2025 09:56:09 -76.17,-140.11 110.74 09/04/2025 09:55:41 -76.16,-140.12 110.75 0.65 28

Figure of FY3D and LANDSAT-8 satellite orbits during SNOs since TLE Epoch: 8/21/2025
SNOs_Map_FY3D_LANDSAT-8_20250822.jpg

Download SNOs between FY3D and LANDSAT-8 since TLE EPOCH: 08/21/2025 in txt file.

Historial Predications of SNOs between FY3D and LANDSAT-8