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: 10/17/2025
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 10/19/2025 05:46:32 -81.26,-149.47 84.52 10/19/2025 05:46:37 -81.27,-149.44 84.52 0.88 5
2 10/21/2025 14:26:40 81.27, -99.69 96.34 10/21/2025 14:27:36 81.26, -99.77 96.32 1.41 56
3 10/21/2025 15:17:24 -81.26, 67.80 83.68 10/21/2025 15:16:54 -81.26, 67.92 83.68 2.18 30
4 10/23/2025 23:57:31 81.26, 117.88 97.12 10/23/2025 23:57:51 81.27, 117.86 97.12 0.78 20
5 10/24/2025 00:48:15 -81.26, -74.60 82.90 10/24/2025 00:47:09 -81.27, -74.44 82.88 3.05 66
6 10/26/2025 08:37:37 -81.27, 167.63 82.06 10/26/2025 08:38:48 -81.26, 167.47 82.08 2.81 71
7 10/26/2025 09:28:21 81.26, -24.60 97.90 10/26/2025 09:28:04 81.27, -24.62 97.92 1.15 17
8 10/28/2025 18:08:28 -81.26, 25.12 81.29 10/28/2025 18:09:00 -81.27, 25.29 81.33 3.00 32
9 10/28/2025 18:59:12 81.26,-167.15 98.67 10/28/2025 18:58:17 81.26,-167.21 98.71 1.38 55

Figure of NOAA-21 and AQUA satellite orbits during SNOs since TLE Epoch: 10/17/2025
SNOs_Map_NOAA-21_AQUA_20251017.jpg

Download SNOs between NOAA-21 and AQUA since TLE EPOCH: 10/17/2025 in txt file.

Historial Predications of SNOs between NOAA-21 and AQUA