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: 10/30/2025
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 11/01/2025 12:13:49 -70.39, 173.44 95.12 11/01/2025 12:12:41 -70.40, 173.50 95.11 2.54 68
2 11/01/2025 13:03:16 70.28, -19.06 84.79 11/01/2025 13:03:25 70.28, -19.01 84.79 1.88 9
3 11/01/2025 13:52:51 -69.90, 148.02 95.59 11/01/2025 13:54:02 -69.93, 148.86 95.56 32.06 71
4 11/04/2025 04:30:18 -70.41, -70.65 94.26 11/04/2025 04:29:38 -70.40, -70.73 94.27 2.99 40
5 11/04/2025 05:19:46 70.24, 96.76 85.59 11/04/2025 05:20:21 70.24, 96.84 85.58 3.13 35
6 11/06/2025 19:57:10 70.83,-121.77 86.97 11/06/2025 19:56:00 70.93,-123.13 87.06 50.96 70
7 11/06/2025 20:46:47 -70.34, 45.14 93.52 11/06/2025 20:46:33 -70.36, 45.11 93.50 2.33 14
8 11/06/2025 21:36:14 70.23,-147.38 86.38 11/06/2025 21:37:17 70.25,-147.41 86.40 2.14 63
9 11/09/2025 12:13:46 70.41, -6.52 87.31 11/09/2025 12:12:47 70.42, -6.53 87.33 2.22 59
10 11/09/2025 13:03:16 -70.30, 160.96 92.79 11/09/2025 13:03:29 -70.33, 160.93 92.76 3.35 13
11 11/09/2025 13:52:54 69.58, -32.40 86.50 11/09/2025 13:54:01 69.58, -30.62 86.52 69.11 67
12 11/12/2025 04:30:14 70.39, 109.34 88.03 11/12/2025 04:29:43 70.40, 109.28 88.05 2.76 31
13 11/12/2025 05:19:44 -70.29, -83.17 92.06 11/12/2025 05:20:24 -70.26, -83.17 92.09 3.28 40

Figure of LANDSAT-8 and NPP satellite orbits during SNOs since TLE Epoch: 10/30/2025
SNOs_Map_LANDSAT-8_NPP_20251031.jpg

Download SNOs between LANDSAT-8 and NPP since TLE EPOCH: 10/30/2025 in txt file.

Historial Predications of SNOs between LANDSAT-8 and NPP