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: 7/16/2025
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 07/18/2025 06:37:32 -76.00, -91.16 124.94 07/18/2025 06:37:50 -75.99, -91.25 124.95 3.03 18
2 07/18/2025 07:28:16 75.95, 76.35 55.03 07/18/2025 07:27:16 75.97, 76.33 55.03 2.19 60
3 07/20/2025 22:03:38 76.47,-144.31 55.98 07/20/2025 22:04:45 76.36,-141.81 55.95 66.55 67
4 07/20/2025 22:54:12 -76.02, 24.70 124.43 07/20/2025 22:54:20 -76.00, 24.67 124.44 1.83 8
5 07/20/2025 23:44:56 75.96,-167.79 55.53 07/20/2025 23:43:46 75.98,-167.75 55.54 2.26 70
6 07/23/2025 14:20:09 76.09, -26.96 56.17 07/23/2025 14:21:21 76.07, -26.87 56.17 3.19 72
7 07/23/2025 15:10:52 -76.03, 140.55 123.88 07/23/2025 15:10:50 -76.00, 140.56 123.90 3.14 2
8 07/23/2025 16:01:30 75.70, -50.99 55.85 07/23/2025 16:00:20 75.78, -52.47 55.87 41.43 70
9 07/26/2025 06:36:48 76.06, 89.04 56.73 07/26/2025 06:37:51 76.06, 88.98 56.73 1.69 63
10 07/26/2025 07:27:31 -76.01,-103.45 123.32 07/26/2025 07:27:20 -75.99,-103.59 123.34 3.93 11
11 07/28/2025 22:53:27 76.08,-155.13 57.36 07/28/2025 22:54:19 76.08,-155.06 57.37 1.86 52
12 07/28/2025 23:44:10 -76.03, 12.38 122.68 07/28/2025 23:43:48 -76.02, 12.38 122.69 0.80 22

Figure of FY3D and LANDSAT-8 satellite orbits during SNOs since TLE Epoch: 7/16/2025
SNOs_Map_FY3D_LANDSAT-8_20250716.jpg

Download SNOs between FY3D and LANDSAT-8 since TLE EPOCH: 07/16/2025 in txt file.

Historial Predications of SNOs between FY3D and LANDSAT-8