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: 10/27/2025
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 10/28/2025 18:08:29 -81.26, 24.92 81.27 10/28/2025 18:09:02 -81.26, 25.09 81.31 2.89 33
2 10/28/2025 18:59:13 81.26,-167.27 98.68 10/28/2025 18:58:19 81.26,-167.31 98.72 0.70 54
3 10/31/2025 03:39:18 -81.26,-117.26 80.56 10/31/2025 03:39:13 -81.26,-117.38 80.54 2.17 5
4 11/02/2025 12:19:25 81.26, -67.48 100.21 11/02/2025 12:20:06 81.26, -67.57 100.20 1.45 41
5 11/02/2025 13:10:09 -81.25, 100.11 79.82 11/02/2025 13:09:24 -81.26, 100.09 79.79 0.64 45
6 11/04/2025 21:50:16 81.26, 149.80 100.95 11/04/2025 21:50:16 81.25, 149.86 100.94 1.12 0
7 11/07/2025 06:30:22 -81.26,-160.22 78.35 11/07/2025 06:31:08 -81.26,-160.28 78.37 1.01 46
8 11/07/2025 07:21:06 81.25, 7.41 101.62 11/07/2025 07:20:25 81.25, 7.24 101.66 2.99 41

Figure of NOAA-21 and AQUA satellite orbits during SNOs since TLE Epoch: 10/27/2025
SNOs_Map_NOAA-21_AQUA_20251027.jpg

Download SNOs between NOAA-21 and AQUA since TLE EPOCH: 10/27/2025 in txt file.

Historial Predications of SNOs between NOAA-21 and AQUA