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: 10/9/2025
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 10/09/2025 16:33:50 81.27,-131.73 92.12 10/09/2025 16:34:35 81.27,-131.66 92.08 1.31 45
2 10/09/2025 17:24:33 -81.26, 36.08 87.95 10/09/2025 17:23:53 -81.27, 36.01 87.91 1.64 40
3 10/12/2025 02:04:42 81.27, 85.73 92.97 10/12/2025 02:04:57 81.27, 85.68 92.96 0.93 15
4 10/12/2025 02:55:26 -81.27,-106.82 87.04 10/12/2025 02:54:15 -81.27,-106.63 87.03 3.27 71
5 10/14/2025 10:44:49 -81.27, 135.68 86.18 10/14/2025 10:46:00 -81.28, 135.78 86.23 2.25 71
6 10/14/2025 11:35:34 81.27, -56.85 93.81 10/14/2025 11:35:18 81.26, -57.00 93.84 2.69 16
7 10/16/2025 20:15:41 -81.27, -6.93 85.34 10/16/2025 20:16:20 -81.27, -6.88 85.36 1.10 39
8 10/16/2025 21:06:26 81.27, 160.52 94.66 10/16/2025 21:05:37 81.27, 160.69 94.67 2.83 49
9 10/19/2025 05:46:32 -81.27,-149.57 84.50 10/19/2025 05:46:38 -81.27,-149.56 84.51 0.22 6
10 10/21/2025 14:26:40 81.27, -99.80 96.36 10/21/2025 14:27:37 81.27, -99.64 96.30 2.79 57

Figure of NOAA-21 and AQUA satellite orbits during SNOs since TLE Epoch: 10/9/2025
SNOs_Map_NOAA-21_AQUA_20251009.jpg

Download SNOs between NOAA-21 and AQUA since TLE EPOCH: 10/09/2025 in txt file.

Historial Predications of SNOs between NOAA-21 and AQUA