Simultaneous Nadir Overpasses (SNOs) Predictions

Prediction of SNOs between NOAA-21 and AQUA Satellite Orbit:

Table of predicted SNOs for the next 14.0 days since TLE Epoch: 11/1/2025
Index Date (NOAA-21) Time (NOAA-21) Lat,Lon (NOAA-21) SZA (NOAA-21 ) Date (AQUA) Time (AQUA) Lat,Lon (AQUA) SZA (AQUA ) Distance(km) Time Diff (sec)
1 11/02/2025 12:19:25 81.26, -67.36 100.20 11/02/2025 12:20:06 81.27, -67.39 100.18 1.29 41
2 11/02/2025 13:10:09 -81.25, 100.19 79.83 11/02/2025 13:09:24 -81.26, 100.22 79.80 1.45 45
3 11/04/2025 21:50:16 81.26, 149.92 100.93 11/04/2025 21:50:16 81.26, 150.09 100.91 3.01 0
4 11/07/2025 06:30:22 -81.26,-160.12 78.37 11/07/2025 06:31:08 -81.27,-160.01 78.40 2.14 46
5 11/07/2025 07:21:06 81.25, 7.55 101.60 11/07/2025 07:20:25 81.26, 7.55 101.63 1.18 41
6 11/09/2025 16:01:12 -81.25, 57.50 77.72 11/09/2025 16:01:16 -81.26, 57.43 77.71 1.72 4
7 11/12/2025 00:41:18 81.25, 107.34 102.96 11/12/2025 00:42:05 81.26, 107.22 102.95 2.19 47
8 11/12/2025 01:32:03 -81.25, -85.32 77.04 11/12/2025 01:31:23 -81.26, -85.15 77.04 2.87 40

Figure of NOAA-21 and AQUA satellite orbits during SNOs since TLE Epoch: 11/1/2025
SNOs_Map_NOAA-21_AQUA_20251102.jpg

Download SNOs between NOAA-21 and AQUA since TLE EPOCH: 11/01/2025 in txt file.

Historial Predications of SNOs between NOAA-21 and AQUA