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: 7/2/2025
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 07/03/2025 15:30:54 81.30,-118.20 63.88 07/03/2025 15:30:48 81.29,-118.33 63.90 2.32 6
2 07/06/2025 01:01:50 81.30, 99.28 64.08 07/06/2025 01:01:44 81.31, 99.42 64.07 2.75 6
3 07/08/2025 10:32:46 81.30, -43.27 64.33 07/08/2025 10:32:41 81.31, -43.40 64.35 2.30 5
4 07/10/2025 20:03:43 81.30, 173.77 64.67 07/10/2025 20:03:38 81.29, 173.60 64.69 3.13 5
5 07/13/2025 05:34:38 81.30, 31.18 64.99 07/13/2025 05:34:32 81.30, 31.19 64.99 0.33 6

Figure of NOAA-21 and AQUA satellite orbits during SNOs since TLE Epoch: 7/2/2025
SNOs_Map_NOAA-21_AQUA_20250702.jpg

Download SNOs between NOAA-21 and AQUA since TLE EPOCH: 07/02/2025 in txt file.

Historial Predications of SNOs between NOAA-21 and AQUA