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: 6/30/2025
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 07/01/2025 05:59:57 81.30, 24.67 63.66 07/01/2025 05:59:50 81.30, 24.52 63.68 2.44 7
2 07/03/2025 15:30:54 81.30,-118.21 63.88 07/03/2025 15:30:48 81.30,-118.25 63.89 0.97 6
3 07/06/2025 01:01:50 81.30, 99.29 64.08 07/06/2025 01:01:45 81.30, 99.22 64.09 1.18 5
4 07/08/2025 10:32:47 81.30, -43.63 64.38 07/08/2025 10:32:42 81.30, -43.46 64.36 2.83 5
5 07/10/2025 20:03:43 81.30, 173.83 64.66 07/10/2025 20:03:39 81.30, 173.72 64.67 2.00 4

Figure of NOAA-21 and AQUA satellite orbits during SNOs since TLE Epoch: 6/30/2025
SNOs_Map_NOAA-21_AQUA_20250630.jpg

Download SNOs between NOAA-21 and AQUA since TLE EPOCH: 06/30/2025 in txt file.

Historial Predications of SNOs between NOAA-21 and AQUA