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: 10/10/2025
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 10/11/2025 09:55:52 74.43, 18.88 81.72 10/11/2025 09:56:44 74.42, 18.96 81.70 2.65 52
2 10/11/2025 10:46:34 -74.33,-173.53 98.38 10/11/2025 10:46:06 -74.33,-173.59 98.38 1.73 28
3 10/13/2025 20:17:28 -74.41, 43.54 97.40 10/13/2025 20:18:11 -74.44, 43.57 97.39 2.73 43
4 10/13/2025 21:08:12 74.33,-148.95 82.53 10/13/2025 21:07:31 74.32,-149.02 82.52 2.72 41
5 10/16/2025 06:39:05 74.42, 68.11 83.51 10/16/2025 06:39:35 74.40, 68.09 83.48 2.26 30
6 10/16/2025 07:29:48 -74.37,-124.43 96.55 10/16/2025 07:28:56 -74.36,-124.35 96.55 2.46 52
7 10/18/2025 17:00:41 -74.41, 92.74 95.63 10/18/2025 17:01:01 -74.41, 92.70 95.63 1.15 20
8 10/18/2025 17:51:25 74.33, -99.74 84.30 10/18/2025 17:50:20 74.35, -99.76 84.33 2.34 65
9 10/21/2025 02:31:49 -75.18, -52.11 93.92 10/21/2025 02:32:54 -75.06, -48.80 94.18 95.70 65
10 10/21/2025 03:22:19 74.44, 117.28 85.27 10/21/2025 03:22:24 74.44, 117.37 85.27 2.84 5
11 10/21/2025 04:13:00 -74.28, -75.00 94.89 10/21/2025 04:11:46 -74.34, -75.20 94.82 8.80 74
12 10/23/2025 12:53:16 74.69, -26.11 86.38 10/23/2025 12:54:27 74.56, -25.43 86.22 24.61 71
13 10/23/2025 13:43:55 -74.44, 141.88 93.89 10/23/2025 13:43:49 -74.45, 141.98 93.88 3.39 6

Figure of NOAA-20 and TERRA satellite orbits during SNOs since TLE Epoch: 10/10/2025
SNOs_Map_NOAA-20_TERRA_20251010.jpg

Download SNOs between NOAA-20 and TERRA since TLE EPOCH: 10/10/2025 in txt file.

Historial Predications of SNOs between NOAA-20 and TERRA