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: 9/11/2025
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 09/12/2025 09:55:24 76.22, 40.10 72.36 09/12/2025 09:55:49 76.22, 40.00 72.35 2.50 25
2 09/12/2025 10:46:07 -76.19,-152.48 107.66 09/12/2025 10:45:17 -76.19,-152.45 107.67 1.06 50
3 09/15/2025 02:12:03 76.25, 155.87 73.42 09/15/2025 02:12:19 76.22, 155.91 73.40 3.44 16
4 09/15/2025 03:02:45 -76.18, -36.52 106.63 09/15/2025 03:01:47 -76.20, -36.54 106.62 2.39 58
5 09/17/2025 17:38:09 -76.80, 102.32 105.09 09/17/2025 17:39:14 -76.72, 105.82 105.01 89.64 65
6 09/17/2025 18:28:42 76.25, -88.20 74.47 09/17/2025 18:28:50 76.23, -88.21 74.44 2.60 8
7 09/17/2025 19:19:25 -76.21, 79.26 105.55 09/17/2025 19:18:18 -76.21, 79.35 105.57 2.75 67
8 09/20/2025 09:54:41 -76.49,-140.53 104.30 09/20/2025 09:55:52 -76.39,-139.45 104.34 30.41 71
9 09/20/2025 10:45:21 76.25, 27.71 75.52 09/20/2025 10:45:21 76.22, 27.65 75.49 3.44 0
10 09/20/2025 11:36:03 -76.16,-164.65 104.54 09/20/2025 11:34:49 -76.20,-164.78 104.53 5.62 74
11 09/23/2025 02:11:16 -76.32, -23.93 103.39 09/23/2025 02:12:25 -76.29, -23.91 103.41 3.40 69
12 09/23/2025 03:02:00 76.25, 143.61 76.58 09/23/2025 03:01:51 76.26, 143.65 76.58 1.26 9
13 09/23/2025 03:52:34 -75.80, -47.46 103.78 09/23/2025 03:51:27 -75.86, -49.98 103.87 69.04 67
14 09/25/2025 18:27:54 -76.32, 91.97 102.33 09/25/2025 18:28:54 -76.32, 92.07 102.32 2.69 60
15 09/25/2025 19:18:38 76.26,-100.51 77.64 09/25/2025 19:18:21 76.24,-100.53 77.62 2.19 17

Figure of FY3D and LANDSAT-8 satellite orbits during SNOs since TLE Epoch: 9/11/2025
SNOs_Map_FY3D_LANDSAT-8_20250912.jpg

Download SNOs between FY3D and LANDSAT-8 since TLE EPOCH: 09/11/2025 in txt file.

Historial Predications of SNOs between FY3D and LANDSAT-8