Simultaneous Nadir Overpasses (SNOs) Predictions

Prediction of SNOs between NOAA-21 and TERRA Satellite Orbit:

Table of predicted SNOs for the next 14.0 days since TLE Epoch: 12/28/2024
Index Date (NOAA-21) Time (NOAA-21) Lat,Lon (NOAA-21) SZA (NOAA-21 ) Date (TERRA) Time (TERRA) Lat,Lon (TERRA) SZA (TERRA ) Distance(km) Time Diff (sec)
1 12/28/2024 22:20:00 73.19,-163.88 96.52 12/28/2024 22:20:45 73.20,-163.88 96.52 1.63 45
2 12/28/2024 23:10:43 -73.13, 3.56 83.55 12/28/2024 23:10:08 -73.10, 3.57 83.58 3.74 35
3 12/31/2024 09:32:21 73.19, 28.04 96.36 12/31/2024 09:32:43 73.17, 28.02 96.34 1.94 22
4 12/31/2024 10:23:03 -73.08,-164.41 83.77 12/31/2024 10:22:06 -73.07,-164.51 83.76 3.28 57
5 01/02/2025 19:54:05 -73.62, 51.64 83.36 01/02/2025 19:55:15 -73.47, 52.93 83.59 43.89 70
6 01/02/2025 20:44:41 73.15,-139.97 96.11 01/02/2025 20:44:40 73.14,-140.07 96.11 3.57 1
7 01/02/2025 21:35:18 -72.79, 28.12 84.29 01/02/2025 21:34:07 -72.83, 27.01 84.17 36.85 71
8 01/05/2025 07:06:18 -73.25,-115.59 84.02 01/05/2025 07:07:15 -73.24,-115.56 84.05 1.45 57
9 01/05/2025 07:57:02 73.17, 51.89 95.89 01/05/2025 07:56:35 73.16, 51.95 95.88 2.23 27
10 01/07/2025 18:18:38 -73.24, 76.35 84.33 01/07/2025 18:19:10 -73.22, 76.38 84.36 2.15 32
11 01/07/2025 19:09:21 73.11,-116.06 95.53 01/07/2025 19:08:30 73.13,-116.13 95.56 3.36 51
12 01/10/2025 04:40:24 73.79, 99.67 95.96 01/10/2025 04:41:32 73.69, 101.66 95.74 63.09 68
13 01/10/2025 05:30:56 -73.19, -91.63 84.72 01/10/2025 05:31:03 -73.20, -91.68 84.71 2.05 7

Figure of NOAA-21 and TERRA satellite orbits during SNOs since TLE Epoch: 12/28/2024
SNOs_Map_NOAA-21_TERRA_20241228.jpg

Download SNOs between NOAA-21 and TERRA since TLE EPOCH: 12/28/2024 in txt file.

Historial Predications of SNOs between NOAA-21 and TERRA