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: 12/18/2025
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 12/19/2025 22:48:41 81.24, 136.17 108.95 12/19/2025 22:49:24 81.23, 136.00 108.95 3.23 43
2 12/19/2025 23:39:26 -81.23, -56.28 71.09 12/19/2025 23:38:41 -81.23, -56.31 71.06 0.78 45
3 12/22/2025 07:28:54 -81.23,-173.68 71.04 12/22/2025 07:29:52 -81.24,-173.67 71.06 1.37 58
4 12/22/2025 08:19:38 81.23, -6.23 108.95 12/22/2025 08:19:09 81.24, -6.05 108.95 3.23 29
5 12/24/2025 16:09:15 81.28,-126.78 109.40 12/24/2025 16:10:28 81.11,-126.31 109.21 19.89 73
6 12/24/2025 16:59:53 -81.23, 43.52 71.02 12/24/2025 16:59:39 -81.23, 43.69 71.04 2.88 14
7 12/27/2025 01:40:06 81.23, 93.51 108.94 12/27/2025 01:40:08 81.22, 93.46 108.94 1.37 2
8 12/29/2025 10:20:20 -81.23, 143.60 71.17 12/29/2025 10:20:36 -81.23, 143.57 71.18 0.54 16
9 12/29/2025 11:11:04 81.23, -48.96 108.81 12/29/2025 11:09:53 81.22, -48.89 108.84 1.30 71
10 12/31/2025 19:00:33 81.23,-166.47 108.71 12/31/2025 19:01:03 81.23,-166.39 108.68 1.30 30

Figure of NOAA-21 and AQUA satellite orbits during SNOs since TLE Epoch: 12/18/2025
SNOs_Map_NOAA-21_AQUA_20251219.jpg

Download SNOs between NOAA-21 and AQUA since TLE EPOCH: 12/18/2025 in txt file.

Historial Predications of SNOs between NOAA-21 and AQUA