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: 6/21/2025
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 06/21/2025 05:19:10 -70.27, -83.17 133.23 06/21/2025 05:18:18 -70.29, -83.20 133.20 2.37 52
2 06/21/2025 06:08:37 70.17, 84.33 46.68 06/21/2025 06:09:02 70.18, 84.27 46.69 2.62 25
3 06/21/2025 06:58:22 -69.23,-109.32 134.21 06/21/2025 06:59:28 -69.24,-107.01 134.29 91.00 66
4 06/23/2025 21:35:41 -70.24, 32.67 133.22 06/23/2025 21:35:13 -70.22, 32.68 133.24 2.83 28
5 06/23/2025 22:25:08 70.14,-159.84 46.68 06/23/2025 22:25:57 70.11,-159.84 46.65 3.12 49
6 06/26/2025 13:02:41 70.36, -18.92 46.97 06/26/2025 13:01:28 70.35, -19.07 46.98 5.95 73
7 06/26/2025 13:52:12 -70.20, 148.48 133.18 06/26/2025 13:52:09 -70.20, 148.48 133.18 0.31 3
8 06/26/2025 14:41:40 70.03, -44.10 46.67 06/26/2025 14:42:52 70.04, -43.96 46.66 5.40 72
9 06/29/2025 05:19:12 70.30, 96.88 47.04 06/29/2025 05:18:23 70.29, 96.80 47.04 3.01 49
10 06/29/2025 06:08:43 -70.14, -95.72 133.11 06/29/2025 06:09:04 -70.14, -95.64 133.12 2.82 21
11 07/01/2025 21:35:42 70.22,-147.35 47.15 07/01/2025 21:35:17 70.23,-147.32 47.16 0.86 25
12 07/01/2025 22:25:12 -70.13, 20.14 132.95 07/01/2025 22:25:59 -70.13, 20.14 132.95 0.33 47
13 07/04/2025 13:02:44 -70.36, 161.09 132.50 07/04/2025 13:01:31 -70.43, 160.81 132.41 13.06 73
14 07/04/2025 13:52:12 70.19, -31.51 47.34 07/04/2025 13:52:13 70.22, -31.54 47.38 3.33 1
15 07/04/2025 14:41:42 -70.10, 135.98 132.75 07/04/2025 14:42:54 -70.07, 136.01 132.78 2.84 72

Figure of LANDSAT-8 and NPP satellite orbits during SNOs since TLE Epoch: 6/21/2025
SNOs_Map_LANDSAT-8_NPP_20250621.jpg

Download SNOs between LANDSAT-8 and NPP since TLE EPOCH: 06/21/2025 in txt file.

Historial Predications of SNOs between LANDSAT-8 and NPP