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: 7/19/2025
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,-144.35 55.99 07/20/2025 22:04:45 76.35,-141.85 55.94 67.02 67
2 07/20/2025 22:54:12 -76.03, 24.65 124.42 07/20/2025 22:54:19 -76.03, 24.77 124.41 3.19 7
3 07/20/2025 23:44:56 75.97,-167.82 55.54 07/20/2025 23:43:46 75.96,-167.79 55.53 1.00 70
4 07/23/2025 14:20:09 76.10, -27.01 56.18 07/23/2025 14:21:21 76.06, -26.91 56.15 5.51 72
5 07/23/2025 15:10:51 -76.00, 140.66 123.90 07/23/2025 15:10:49 -76.03, 140.65 123.87 3.50 2
6 07/23/2025 16:01:30 75.71, -51.04 55.86 07/23/2025 16:00:20 75.77, -52.52 55.85 40.98 70
7 07/26/2025 06:36:48 76.07, 88.99 56.74 07/26/2025 06:37:50 76.09, 89.08 56.76 2.92 62
8 07/26/2025 07:27:31 -76.02,-103.51 123.30 07/26/2025 07:27:19 -76.02,-103.50 123.31 0.33 12
9 07/28/2025 22:53:27 76.05,-155.03 57.34 07/28/2025 22:54:20 76.06,-155.12 57.35 2.62 53
10 07/28/2025 23:44:10 -76.00, 12.47 122.70 07/28/2025 23:43:49 -76.00, 12.31 122.72 4.15 21
11 07/31/2025 15:10:06 76.08, -39.23 58.02 07/31/2025 15:10:48 76.08, -39.20 58.02 1.06 42
12 07/31/2025 16:00:49 -76.03, 128.27 122.02 07/31/2025 16:00:17 -76.01, 128.24 122.05 2.38 32

Figure of FY3D and LANDSAT-8 satellite orbits during SNOs since TLE Epoch: 7/19/2025
SNOs_Map_FY3D_LANDSAT-8_20250719.jpg

Download SNOs between FY3D and LANDSAT-8 since TLE EPOCH: 07/19/2025 in txt file.

Historial Predications of SNOs between FY3D and LANDSAT-8