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: 7/20/2025
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 07/20/2025 22:03:38 76.48,-144.33 55.99 07/20/2025 22:04:45 76.35,-141.84 55.94 66.67 67
2 07/20/2025 22:54:12 -76.02, 24.67 124.42 07/20/2025 22:54:19 -76.04, 24.78 124.40 3.33 7
3 07/20/2025 23:44:56 75.96,-167.81 55.54 07/20/2025 23:43:46 75.97,-167.78 55.53 0.93 70
4 07/23/2025 14:20:09 76.09, -26.99 56.18 07/23/2025 14:21:21 76.06, -26.90 56.15 4.62 72
5 07/23/2025 15:10:52 -76.04, 140.51 123.87 07/23/2025 15:10:49 -76.03, 140.66 123.87 4.03 3
6 07/23/2025 16:01:30 75.71, -51.02 55.85 07/23/2025 16:00:20 75.77, -52.51 55.85 41.35 70
7 07/26/2025 06:36:48 76.07, 89.00 56.73 07/26/2025 06:37:50 76.09, 89.08 56.76 2.93 62
8 07/26/2025 07:27:31 -76.02,-103.50 123.31 07/26/2025 07:27:19 -76.02,-103.50 123.31 0.19 12
9 07/28/2025 22:53:26 76.05,-155.02 57.33 07/28/2025 22:54:19 76.06,-155.13 57.35 3.28 53
10 07/28/2025 23:44:10 -76.05, 12.32 122.67 07/28/2025 23:43:47 -76.04, 12.45 122.67 3.55 23
11 07/31/2025 15:10:06 76.08, -39.21 58.02 07/31/2025 15:10:48 76.07, -39.23 58.01 1.38 42
12 07/31/2025 16:00:49 -76.03, 128.28 122.02 07/31/2025 16:00:16 -76.05, 128.36 122.01 3.28 33

Figure of FY3D and LANDSAT-8 satellite orbits during SNOs since TLE Epoch: 7/20/2025
SNOs_Map_FY3D_LANDSAT-8_20250720.jpg

Download SNOs between FY3D and LANDSAT-8 since TLE EPOCH: 07/20/2025 in txt file.

Historial Predications of SNOs between FY3D and LANDSAT-8