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: 10/11/2025
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 09:55:51 74.42, 18.91 81.71 10/11/2025 09:56:43 74.44, 18.99 81.71 2.90 52
2 10/11/2025 10:46:34 -74.37,-173.63 98.34 10/11/2025 10:46:05 -74.34,-173.57 98.37 3.27 29
3 10/13/2025 20:17:27 -74.40, 43.57 97.42 10/13/2025 20:18:11 -74.40, 43.48 97.42 2.64 44
4 10/13/2025 21:08:11 74.32,-148.91 82.51 10/13/2025 21:07:30 74.34,-148.99 82.54 2.90 41
5 10/16/2025 06:39:05 74.41, 68.15 83.49 10/16/2025 06:39:35 74.42, 68.14 83.50 1.79 30
6 10/16/2025 07:29:48 -74.35,-124.39 96.56 10/16/2025 07:28:57 -74.32,-124.43 96.58 3.25 51
7 10/18/2025 17:00:42 -74.44, 92.65 95.60 10/18/2025 17:01:01 -74.44, 92.76 95.61 3.29 19
8 10/18/2025 17:51:25 74.32, -99.70 84.28 10/18/2025 17:50:21 74.33, -99.81 84.31 3.73 64
9 10/21/2025 03:22:19 74.42, 117.33 85.25 10/21/2025 03:22:25 74.43, 117.34 85.26 1.46 6
10 10/21/2025 04:13:00 -74.26, -74.95 94.92 10/21/2025 04:11:47 -74.32, -75.24 94.83 10.97 73
11 10/23/2025 12:53:16 74.66, -26.05 86.36 10/23/2025 12:54:28 74.56, -25.44 86.22 21.61 72
12 10/23/2025 13:43:55 -74.41, 141.94 93.91 10/23/2025 13:43:51 -74.40, 141.85 93.93 3.24 4

Figure of NOAA-20 and TERRA satellite orbits during SNOs since TLE Epoch: 10/11/2025
SNOs_Map_NOAA-20_TERRA_20251011.jpg

Download SNOs between NOAA-20 and TERRA since TLE EPOCH: 10/11/2025 in txt file.

Historial Predications of SNOs between NOAA-20 and TERRA