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: 11/15/2025
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 11/16/2025 18:53:02 -81.25, 14.40 75.81 11/16/2025 18:52:53 -81.25, 14.54 75.82 2.29 9
2 11/19/2025 03:33:17 81.25, 64.53 104.74 11/19/2025 03:33:36 81.26, 64.55 104.73 0.99 19
3 11/19/2025 04:24:02 -81.25,-128.09 75.26 11/19/2025 04:22:54 -81.25,-127.95 75.25 2.36 68
4 11/21/2025 12:13:33 -81.25, 114.32 74.70 11/21/2025 12:14:19 -81.25, 114.26 74.72 1.02 46
5 11/21/2025 13:04:17 81.25, -78.08 105.28 11/21/2025 13:03:36 81.24, -78.16 105.30 1.37 41
6 11/23/2025 20:53:48 81.25, 164.21 105.82 11/23/2025 20:54:59 81.25, 164.23 105.78 0.35 71
7 11/23/2025 21:44:33 -81.25, -28.32 74.20 11/23/2025 21:44:17 -81.24, -28.27 74.20 1.06 16
8 11/26/2025 06:24:47 81.24, 21.85 106.26 11/26/2025 06:24:55 81.25, 21.87 106.26 0.96 8
9 11/28/2025 15:05:03 -81.25, 71.55 73.27 11/28/2025 15:05:33 -81.25, 71.74 73.31 3.17 30

Figure of NOAA-21 and AQUA satellite orbits during SNOs since TLE Epoch: 11/15/2025
SNOs_Map_NOAA-21_AQUA_20251116.jpg

Download SNOs between NOAA-21 and AQUA since TLE EPOCH: 11/15/2025 in txt file.

Historial Predications of SNOs between NOAA-21 and AQUA