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: 9/4/2025
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 09/04/2025 23:22:10 74.76, 176.39 68.28 09/04/2025 23:23:17 74.66, 178.64 68.03 67.00 67
2 09/05/2025 00:12:42 -74.17, -14.72 112.39 09/05/2025 00:12:47 -74.18, -14.81 112.38 2.72 5
3 09/05/2025 01:03:21 73.84, 153.39 67.26 09/05/2025 01:02:10 73.88, 152.22 67.39 36.45 71
4 09/07/2025 09:43:46 -74.64,-158.67 110.98 09/07/2025 09:44:56 -74.50,-157.18 111.21 46.71 70
5 09/07/2025 10:34:22 74.17, 9.85 68.52 09/07/2025 10:34:19 74.20, 9.81 68.54 3.42 3
6 09/07/2025 11:24:57 -73.72, 178.28 111.99 09/07/2025 11:23:48 -73.78, 176.56 111.81 54.29 69
7 09/09/2025 20:05:20 74.36,-133.35 69.62 09/09/2025 20:06:31 74.33,-133.00 69.55 11.12 71
8 09/09/2025 20:56:01 -74.20, 34.39 110.56 09/09/2025 20:55:55 -74.18, 34.31 110.58 3.06 6
9 09/12/2025 06:26:56 -74.29,-108.57 109.56 09/12/2025 06:28:06 -74.28,-108.56 109.58 0.88 70
10 09/12/2025 07:17:40 74.22, 58.91 70.38 09/12/2025 07:17:24 74.23, 59.00 70.39 2.91 16
11 09/14/2025 16:48:35 74.28, -83.94 71.35 09/14/2025 16:49:36 74.30, -83.95 71.36 2.81 61
12 09/14/2025 17:39:18 -74.20, 83.56 108.73 09/14/2025 17:38:59 -74.21, 83.50 108.72 1.90 19
13 09/17/2025 03:10:14 -74.31, -59.43 107.70 09/17/2025 03:11:10 -74.30, -59.39 107.72 1.32 56
14 09/17/2025 04:00:58 74.24, 108.04 72.25 09/17/2025 04:00:28 74.24, 108.15 72.25 3.34 30

Figure of NOAA-20 and TERRA satellite orbits during SNOs since TLE Epoch: 9/4/2025
SNOs_Map_NOAA-20_TERRA_20250905.jpg

Download SNOs between NOAA-20 and TERRA since TLE EPOCH: 09/04/2025 in txt file.

Historial Predications of SNOs between NOAA-20 and TERRA