Simultaneous Nadir Overpasses (SNOs) Predictions

Prediction of SNOs between LANDSAT-8 and NPP Satellite Orbit:

Table of predicted SNOs for the next 14.0 days since TLE Epoch: 7/26/2025
Index Date (LANDSAT-8) Time (LANDSAT-8) Lat,Lon (LANDSAT-8) SZA (LANDSAT-8 ) Date (NPP) Time (NPP) Lat,Lon (NPP) SZA (NPP ) Distance(km) Time Diff (sec)
1 07/28/2025 13:02:49 70.42, -18.81 51.55 07/28/2025 13:01:37 70.48, -19.20 51.64 16.08 72
2 07/28/2025 13:52:21 -70.20, 148.51 128.65 07/28/2025 13:52:15 -70.21, 148.55 128.64 2.15 6
3 07/28/2025 14:41:48 70.10, -44.00 51.26 07/28/2025 14:43:00 70.12, -44.00 51.27 2.60 72
4 07/31/2025 05:19:19 70.30, 96.91 52.08 07/31/2025 05:18:28 70.32, 96.84 52.11 2.78 51
5 07/31/2025 06:08:49 -70.19, -95.62 128.01 07/31/2025 06:09:09 -70.20, -95.65 128.01 1.60 20
6 07/31/2025 06:58:32 69.20, 70.67 51.06 07/31/2025 06:59:37 69.21, 73.12 50.97 96.80 65
7 08/02/2025 21:35:48 70.28,-147.25 52.74 08/02/2025 21:35:22 70.26,-147.29 52.73 2.14 26
8 08/02/2025 22:25:18 -70.17, 20.23 127.36 08/02/2025 22:26:03 -70.14, 20.22 127.39 3.04 45
9 08/05/2025 13:02:48 -70.45, 161.25 126.39 08/05/2025 13:01:35 -70.50, 160.80 126.32 17.72 73
10 08/05/2025 13:52:17 70.23, -31.43 53.41 08/05/2025 13:52:16 70.21, -31.43 53.39 1.98 1
11 08/05/2025 14:41:47 -70.13, 136.06 126.69 08/05/2025 14:42:58 -70.14, 136.00 126.68 2.90 71
12 08/08/2025 05:19:19 -70.28, -83.11 125.81 08/08/2025 05:18:26 -70.30, -83.09 125.79 2.03 53
13 08/08/2025 06:08:46 70.17, 84.37 54.09 08/08/2025 06:09:10 70.17, 84.42 54.09 1.98 24

Figure of LANDSAT-8 and NPP satellite orbits during SNOs since TLE Epoch: 7/26/2025
SNOs_Map_LANDSAT-8_NPP_20250726.jpg

Download SNOs between LANDSAT-8 and NPP since TLE EPOCH: 07/26/2025 in txt file.

Historial Predications of SNOs between LANDSAT-8 and NPP