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: 8/8/2025
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 08/21/2025 16:05:19 -76.01, 127.77 115.78 08/21/2025 16:04:07 -75.99, 126.64 115.85 30.57 72
2 08/21/2025 16:56:08 76.16, -65.44 64.36 08/21/2025 16:55:05 76.15, -65.54 64.34 2.79 63
3 08/21/2025 17:46:52 -76.17, 101.83 115.62 08/21/2025 17:45:59 -76.19, 101.86 115.61 1.80 53
4 08/21/2025 18:37:38 76.18, -90.89 64.40 08/21/2025 18:37:01 76.17, -90.97 64.38 2.41 37
5 08/21/2025 19:28:22 -76.19, 76.38 115.58 08/21/2025 19:27:55 -76.20, 76.43 115.57 1.67 27
6 08/21/2025 20:19:08 76.20,-116.34 64.45 08/21/2025 20:18:57 76.18,-116.39 64.42 2.37 11
7 08/21/2025 21:09:51 -76.21, 50.93 115.54 08/21/2025 21:09:50 -76.22, 51.01 115.53 2.02 1
8 08/21/2025 22:00:37 76.22,-141.79 64.49 08/21/2025 22:00:52 76.20,-141.82 64.47 2.69 15
9 08/21/2025 22:51:21 -76.23, 25.48 115.49 08/21/2025 22:51:46 -76.23, 25.58 115.49 2.68 25
10 08/21/2025 23:42:07 76.24,-167.24 64.53 08/21/2025 23:42:48 76.22,-167.24 64.51 3.26 41
11 08/22/2025 00:32:51 -76.26, 0.03 115.45 08/22/2025 00:33:42 -76.25, 0.16 115.45 3.49 51
12 08/22/2025 01:23:36 76.22, 167.47 64.53 08/22/2025 01:24:44 76.23, 167.33 64.55 3.85 68
13 08/22/2025 02:14:23 -76.37, -25.75 115.33 08/22/2025 02:15:36 -76.35, -24.93 115.30 21.62 73

Figure of FY3D and NOAA-19 satellite orbits during SNOs since TLE Epoch: 8/8/2025
SNOs_Map_FY3D_NOAA-19_20250808.jpg

Download SNOs between FY3D and NOAA-19 since TLE EPOCH: 08/08/2025 in txt file.

Historial Predications of SNOs between FY3D and NOAA-19