Simultaneous Nadir Overpasses (SNOs) Predictions

Prediction of SNOs between FY3D and TERRA Satellite Orbit:

Table of predicted SNOs for the next 14.0 days since TLE Epoch: 3/20/2025
Index Date (FY3D) Time (FY3D) Lat,Lon (FY3D) SZA (FY3D ) Date (TERRA) Time (TERRA) Lat,Lon (TERRA) SZA (TERRA ) Distance(km) Time Diff (sec)
1 03/21/2025 16:37:32 77.79, -71.66 77.23 03/21/2025 16:38:35 77.71, -67.51 77.12 98.28 63
2 03/21/2025 17:28:03 -77.25, 98.30 103.36 03/21/2025 17:28:05 -77.23, 98.25 103.38 2.60 2
3 03/21/2025 18:18:38 76.80, -92.46 76.18 03/21/2025 18:17:32 76.87, -95.36 76.26 74.03 66
4 03/24/2025 03:49:38 77.28, 122.81 75.72 03/24/2025 03:50:11 77.27, 122.82 75.70 1.59 33
5 03/24/2025 04:40:21 -77.23, -69.63 104.35 03/24/2025 04:39:31 -77.25, -69.59 104.34 2.16 50
6 03/26/2025 14:11:10 -77.30, 147.41 105.23 03/26/2025 14:12:15 -77.30, 147.37 105.23 1.09 65
7 03/26/2025 15:01:55 77.28, -45.19 74.75 03/26/2025 15:01:35 77.27, -45.06 74.74 3.21 20
8 03/29/2025 01:23:27 -77.27, -20.47 106.22 03/29/2025 01:23:39 -77.29, -20.54 106.20 3.32 12
9 03/29/2025 02:14:12 77.25, 146.94 73.75 03/29/2025 02:12:59 77.27, 147.02 73.77 2.83 73
10 03/31/2025 11:45:01 77.31, 4.04 72.88 03/31/2025 11:45:42 77.30, 3.90 72.87 3.58 41
11 03/31/2025 12:35:44 -77.26, 171.58 107.19 03/31/2025 12:35:02 -77.28, 171.51 107.17 3.05 42
12 04/02/2025 22:06:33 -77.33, 28.62 108.04 04/02/2025 22:07:43 -77.35, 28.54 108.03 2.75 70
13 04/02/2025 22:57:18 77.31,-163.97 71.93 04/02/2025 22:57:03 77.31,-163.92 71.93 1.38 15

Figure of FY3D and TERRA satellite orbits during SNOs since TLE Epoch: 3/20/2025
SNOs_Map_FY3D_TERRA_20250320.jpg

Download SNOs between FY3D and TERRA since TLE EPOCH: 03/20/2025 in txt file.

Historial Predications of SNOs between FY3D and TERRA