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: 3/22/2025
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 03/22/2025 16:17:36 75.57, -57.77 74.64 03/22/2025 16:18:45 75.58, -57.82 74.65 1.99 69
2 03/22/2025 17:08:19 -75.52, 109.71 105.43 03/22/2025 17:08:14 -75.51, 109.60 105.45 3.25 5
3 03/22/2025 17:58:55 75.07, -81.58 74.15 03/22/2025 17:57:47 75.14, -83.78 74.15 63.45 68
4 03/25/2025 08:34:24 75.60, 58.00 73.62 03/25/2025 08:35:13 75.61, 58.11 73.62 3.15 49
5 03/25/2025 09:25:07 -75.56,-134.53 106.45 03/25/2025 09:24:42 -75.53,-134.45 106.47 3.19 25
6 03/28/2025 00:51:10 75.61, 173.85 72.58 03/28/2025 00:51:39 75.61, 174.00 72.58 4.06 29
7 03/28/2025 01:41:52 -75.52, -18.53 107.52 03/28/2025 01:41:08 -75.54, -18.56 107.51 2.33 44
8 03/30/2025 16:17:24 -76.21, 120.33 107.89 03/30/2025 16:18:29 -76.11, 123.75 107.90 91.82 65
9 03/30/2025 17:07:56 75.59, -70.21 71.53 03/30/2025 17:08:05 75.59, -70.17 71.52 1.24 9
10 03/30/2025 17:58:39 -75.55, 97.26 108.53 03/30/2025 17:57:34 -75.52, 97.27 108.57 3.14 65
11 04/02/2025 08:33:57 -75.62,-121.75 109.46 04/02/2025 08:35:03 -75.63,-121.79 109.45 1.23 66
12 04/02/2025 09:24:42 75.59, 45.66 70.50 04/02/2025 09:24:29 75.59, 45.75 70.50 2.44 13
13 04/02/2025 10:15:13 -74.99,-145.14 110.06 04/02/2025 10:14:07 -75.08,-148.04 110.06 83.80 66
14 04/05/2025 00:50:43 -75.65, -5.95 110.45 04/05/2025 00:51:26 -75.62, -5.92 110.48 3.12 43
15 04/05/2025 01:41:27 75.57, 161.62 69.47 04/05/2025 01:40:52 75.58, 161.62 69.47 1.48 35

Figure of FY3D and LANDSAT-8 satellite orbits during SNOs since TLE Epoch: 3/22/2025
SNOs_Map_FY3D_LANDSAT-8_20250322.jpg

Download SNOs between FY3D and LANDSAT-8 since TLE EPOCH: 03/22/2025 in txt file.

Historial Predications of SNOs between FY3D and LANDSAT-8