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: 7/17/2025
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, -91.15 124.94 07/18/2025 06:37:50 -75.99, -91.24 124.95 2.84 18
2 07/18/2025 07:28:16 75.94, 76.36 55.02 07/18/2025 07:27:16 75.97, 76.34 55.04 2.93 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 66.38 67
4 07/20/2025 22:54:12 -76.01, 24.70 124.43 07/20/2025 22:54:20 -76.00, 24.67 124.44 1.84 8
5 07/20/2025 23:44:56 75.96,-167.78 55.53 07/20/2025 23:43:46 75.98,-167.75 55.54 2.48 70
6 07/23/2025 14:20:09 76.09, -26.97 56.17 07/23/2025 14:21:21 76.07, -26.87 56.16 3.31 72
7 07/23/2025 15:10:52 -76.03, 140.55 123.87 07/23/2025 15:10:50 -76.00, 140.55 123.91 3.71 2
8 07/23/2025 16:01:30 75.70, -51.00 55.85 07/23/2025 16:00:20 75.78, -52.48 55.86 41.48 70
9 07/26/2025 06:36:48 76.06, 89.03 56.73 07/26/2025 06:37:51 76.05, 88.96 56.72 2.26 63
10 07/26/2025 07:27:31 -76.01,-103.47 123.31 07/26/2025 07:27:19 -76.04,-103.46 123.29 2.73 12
11 07/28/2025 22:53:27 76.09,-155.16 57.37 07/28/2025 22:54:19 76.07,-155.09 57.36 2.68 52
12 07/28/2025 23:44:10 -76.04, 12.34 122.67 07/28/2025 23:43:48 -76.01, 12.34 122.71 3.17 22

Figure of FY3D and LANDSAT-8 satellite orbits during SNOs since TLE Epoch: 7/17/2025
SNOs_Map_FY3D_LANDSAT-8_20250717.jpg

Download SNOs between FY3D and LANDSAT-8 since TLE EPOCH: 07/17/2025 in txt file.

Historial Predications of SNOs between FY3D and LANDSAT-8