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: 9/18/2025
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 09/20/2025 09:54:40 -76.47,-140.45 104.32 09/20/2025 09:55:51 -76.37,-139.53 104.37 26.81 71
2 09/20/2025 10:45:21 76.27, 27.65 75.53 09/20/2025 10:45:19 76.26, 27.76 75.52 3.15 2
3 09/20/2025 11:36:01 -76.10,-164.41 104.60 09/20/2025 11:34:48 -76.18,-164.85 104.55 14.93 73
4 09/23/2025 02:11:15 -76.30, -23.87 103.41 09/23/2025 02:12:22 -76.32, -23.79 103.37 3.36 67
5 09/23/2025 03:01:59 76.23, 143.69 76.56 09/23/2025 03:01:49 76.26, 143.64 76.58 3.16 10
6 09/23/2025 03:52:32 -75.74, -47.25 103.83 09/23/2025 03:51:26 -75.79, -50.17 103.94 80.06 66
7 09/25/2025 18:27:54 -76.31, 92.01 102.34 09/25/2025 18:28:52 -76.31, 92.05 102.33 1.09 58
8 09/25/2025 19:18:38 76.25,-100.45 77.63 09/25/2025 19:18:19 76.24,-100.53 77.61 2.31 19
9 09/28/2025 10:44:32 -76.32,-152.13 101.28 09/28/2025 10:45:20 -76.33,-152.01 101.25 3.39 48
10 09/28/2025 11:35:16 76.27, 15.39 78.70 09/28/2025 11:34:47 76.26, 15.40 78.68 0.91 29
11 10/01/2025 03:01:10 -76.30, -36.12 100.24 10/01/2025 03:01:49 -76.33, -36.11 100.20 4.05 39
12 10/01/2025 03:51:54 76.25, 131.38 79.74 10/01/2025 03:51:16 76.26, 131.29 79.73 2.76 38

Figure of FY3D and LANDSAT-8 satellite orbits during SNOs since TLE Epoch: 9/18/2025
SNOs_Map_FY3D_LANDSAT-8_20250919.jpg

Download SNOs between FY3D and LANDSAT-8 since TLE EPOCH: 09/18/2025 in txt file.

Historial Predications of SNOs between FY3D and LANDSAT-8