Simultaneous Nadir Overpasses (SNOs) Predictions

Prediction of SNOs between FY3D and NOAA-19 Satellite Orbit:

Table of predicted SNOs for the next 14.0 days since TLE Epoch: 7/9/2025
Index Date (FY3D) Time (FY3D) Lat,Lon (FY3D) SZA (FY3D ) Date (NOAA-19) Time (NOAA-19) Lat,Lon (NOAA-19) SZA (NOAA-19 ) Distance(km) Time Diff (sec)
1 07/20/2025 13:36:03 76.12, -16.15 55.60 07/20/2025 13:34:49 76.13, -16.17 55.60 0.85 74
2 07/20/2025 14:26:48 -76.15, 151.07 124.38 07/20/2025 14:25:45 -76.14, 151.15 124.39 2.21 63
3 07/20/2025 15:17:33 76.15, -41.60 55.63 07/20/2025 15:16:45 76.15, -41.59 55.63 0.38 48
4 07/20/2025 16:08:18 -76.17, 125.61 124.34 07/20/2025 16:07:41 -76.16, 125.73 124.35 3.24 37
5 07/20/2025 16:59:03 76.17, -67.06 55.67 07/20/2025 16:58:41 76.17, -67.01 55.66 1.39 22
6 07/20/2025 17:49:47 -76.15, 100.32 124.35 07/20/2025 17:49:37 -76.18, 100.30 124.32 2.99 10
7 07/20/2025 18:40:33 76.19, -92.51 55.70 07/20/2025 18:40:37 76.18, -92.43 55.69 2.47 4
8 07/20/2025 19:31:17 -76.17, 74.87 124.31 07/20/2025 19:31:33 -76.20, 74.88 124.29 2.32 16
9 07/20/2025 20:22:02 76.17,-117.80 55.69 07/20/2025 20:22:33 76.20,-117.85 55.73 3.54 31
10 07/20/2025 21:12:47 -76.20, 49.42 124.28 07/20/2025 21:13:29 -76.21, 49.46 124.26 2.05 42
11 07/20/2025 22:03:32 76.19,-143.26 55.73 07/20/2025 22:04:29 76.22,-143.26 55.76 2.77 57
12 07/20/2025 22:54:17 -76.22, 23.96 124.25 07/20/2025 22:55:25 -76.23, 24.04 124.23 2.32 68
13 07/20/2025 23:45:10 76.57,-170.06 56.08 07/20/2025 23:46:18 76.54,-167.50 56.14 66.27 68

Figure of FY3D and NOAA-19 satellite orbits during SNOs since TLE Epoch: 7/9/2025
SNOs_Map_FY3D_NOAA-19_20250709.jpg

Download SNOs between FY3D and NOAA-19 since TLE EPOCH: 07/09/2025 in txt file.

Historial Predications of SNOs between FY3D and NOAA-19