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: 8/11/2025
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 08/11/2025 07:26:11 -76.32,-103.81 118.83 08/11/2025 07:27:23 -76.20,-102.96 118.91 26.11 72
2 08/11/2025 08:16:52 76.10, 64.31 60.99 08/11/2025 08:16:51 76.09, 64.33 60.98 1.30 1
3 08/11/2025 09:07:33 -75.98,-127.95 119.10 08/11/2025 09:06:20 -76.01,-128.27 119.10 9.14 73
4 08/13/2025 23:42:48 -76.15, 12.72 118.16 08/13/2025 23:43:54 -76.16, 12.78 118.14 1.87 66
5 08/14/2025 00:33:33 76.11,-179.82 61.82 08/14/2025 00:33:21 76.09,-179.78 61.80 2.09 12
6 08/14/2025 01:24:04 -75.53, -10.53 118.67 08/14/2025 01:22:59 -75.57, -13.70 118.75 87.79 65
7 08/16/2025 15:59:28 -76.16, 128.58 117.30 08/16/2025 16:00:23 -76.14, 128.63 117.31 2.22 55
8 08/16/2025 16:50:12 76.07, -63.80 62.64 08/16/2025 16:49:50 76.07, -63.95 62.63 4.07 22
9 08/19/2025 08:16:08 -76.13,-115.41 116.46 08/19/2025 08:16:52 -76.16,-115.43 116.42 3.42 44
10 08/19/2025 09:06:53 76.09, 52.04 63.53 08/19/2025 09:06:19 76.09, 51.98 63.51 1.58 34
11 08/22/2025 00:32:49 -76.15, 0.41 115.54 08/22/2025 00:33:21 -76.16, 0.46 115.53 1.70 32
12 08/22/2025 01:23:34 76.11, 167.86 64.44 08/22/2025 01:22:48 76.09, 167.86 64.41 2.95 46
13 08/24/2025 16:49:29 -76.13, 116.39 114.64 08/24/2025 16:49:50 -76.15, 116.29 114.63 2.96 21

Figure of FY3D and LANDSAT-8 satellite orbits during SNOs since TLE Epoch: 8/11/2025
SNOs_Map_FY3D_LANDSAT-8_20250811.jpg

Download SNOs between FY3D and LANDSAT-8 since TLE EPOCH: 08/11/2025 in txt file.

Historial Predications of SNOs between FY3D and LANDSAT-8