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: 9/12/2025
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 09/14/2025 16:48:36 74.30, -84.02 71.38 09/14/2025 16:49:38 74.30, -83.97 71.35 1.46 62
2 09/14/2025 17:39:19 -74.24, 83.47 108.69 09/14/2025 17:39:00 -74.24, 83.57 108.68 3.09 19
3 09/17/2025 03:10:14 -74.29, -59.38 107.72 09/17/2025 03:11:13 -74.30, -59.41 107.72 1.82 59
4 09/17/2025 04:00:58 74.22, 108.11 72.22 09/17/2025 04:00:32 74.20, 108.04 72.21 2.99 26
5 09/19/2025 13:31:54 74.32, -34.87 73.25 09/19/2025 13:32:44 74.29, -34.86 73.21 3.27 50
6 09/19/2025 14:22:37 -74.25, 132.63 106.82 09/19/2025 14:22:06 -74.24, 132.70 106.82 2.16 31
7 09/21/2025 23:53:32 -74.30, -10.24 105.84 09/21/2025 23:54:18 -74.33, -10.22 105.83 2.52 46
8 09/22/2025 00:44:16 74.24, 157.24 74.11 09/22/2025 00:43:37 74.22, 157.22 74.10 2.05 39
9 09/24/2025 10:15:10 74.30, 14.36 75.10 09/24/2025 10:15:48 74.29, 14.27 75.08 2.84 38
10 09/24/2025 11:05:53 -74.23,-178.13 104.98 09/24/2025 11:05:10 -74.25,-178.17 104.95 2.60 43
11 09/26/2025 20:36:49 -74.34, 38.86 103.93 09/26/2025 20:37:22 -74.31, 38.86 103.97 3.72 33
12 09/26/2025 21:27:32 74.23,-153.55 75.97 09/26/2025 21:26:40 74.25,-153.58 76.00 2.74 52

Figure of NOAA-20 and TERRA satellite orbits during SNOs since TLE Epoch: 9/12/2025
SNOs_Map_NOAA-20_TERRA_20250913.jpg

Download SNOs between NOAA-20 and TERRA since TLE EPOCH: 09/12/2025 in txt file.

Historial Predications of SNOs between NOAA-20 and TERRA