Simultaneous Nadir Overpasses (SNOs) Predictions

Prediction of SNOs between NOAA-20 and TERRA Satellite Orbit:

Table of predicted SNOs for the next 14.0 days since TLE Epoch: 9/27/2025
Index Date (NOAA-20) Time (NOAA-20) Lat,Lon (NOAA-20) SZA (NOAA-20 ) Date (TERRA) Time (TERRA) Lat,Lon (TERRA) SZA (TERRA ) Distance(km) Time Diff (sec)
1 09/29/2025 06:58:27 74.33, 63.47 77.00 09/29/2025 06:58:47 74.32, 63.47 76.98 1.60 20
2 09/29/2025 07:49:10 -74.27,-129.05 103.06 09/29/2025 07:48:09 -74.25,-129.01 103.07 2.15 61
3 10/01/2025 17:20:04 -74.31, 88.12 102.09 10/01/2025 17:20:18 -74.33, 88.08 102.07 2.83 14
4 10/01/2025 18:10:48 74.24,-104.38 77.85 10/01/2025 18:09:37 74.25,-104.45 77.87 2.13 71
5 10/04/2025 02:51:11 -74.99, -56.43 100.42 10/04/2025 02:52:17 -74.89, -53.68 100.65 80.07 66
6 10/04/2025 03:41:43 74.34, 112.65 78.87 10/04/2025 03:41:45 74.34, 112.68 78.87 1.25 2
7 10/04/2025 04:32:22 -74.08, -79.37 101.41 10/04/2025 04:31:10 -74.12, -80.16 101.32 24.33 72
8 10/06/2025 13:12:40 74.54, -30.61 80.01 10/06/2025 13:13:52 74.46, -30.14 79.89 16.92 72
9 10/06/2025 14:03:20 -74.33, 137.27 100.22 10/06/2025 14:03:15 -74.34, 137.24 100.21 0.94 5
10 10/06/2025 14:53:51 73.62, -53.67 79.03 10/06/2025 14:52:45 73.67, -56.53 79.22 89.60 66
11 10/08/2025 23:34:14 -74.40, -5.62 99.24 10/08/2025 23:35:22 -74.41, -5.66 99.23 2.35 68
12 10/09/2025 00:24:58 74.33, 161.87 80.71 10/09/2025 00:24:41 74.33, 161.82 80.71 1.43 17
13 10/11/2025 09:55:52 74.40, 18.96 81.69 10/11/2025 09:56:47 74.43, 18.97 81.70 3.09 55
14 10/11/2025 10:46:35 -74.33,-173.55 98.38 10/11/2025 10:46:09 -74.35,-173.55 98.36 2.03 26

Figure of NOAA-20 and TERRA satellite orbits during SNOs since TLE Epoch: 9/27/2025
SNOs_Map_NOAA-20_TERRA_20250928.jpg

Download SNOs between NOAA-20 and TERRA since TLE EPOCH: 09/27/2025 in txt file.

Historial Predications of SNOs between NOAA-20 and TERRA