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: 11/11/2025
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 11/12/2025 04:30:14 70.35, 109.28 88.00 11/12/2025 04:29:42 70.37, 109.33 88.01 2.45 32
2 11/12/2025 05:19:43 -70.29, -83.17 92.06 11/12/2025 05:20:24 -70.29, -83.22 92.06 2.04 41
3 11/14/2025 19:57:10 -70.66, 57.98 91.00 11/14/2025 19:55:58 -70.70, 57.28 90.97 26.31 72
4 11/14/2025 20:46:41 70.33,-134.85 88.68 11/14/2025 20:46:38 70.36,-134.88 88.71 3.15 3
5 11/14/2025 21:36:11 -70.22, 32.62 91.43 11/14/2025 21:37:19 -70.23, 32.65 91.42 1.42 68
6 11/17/2025 12:13:40 -70.44, 173.55 90.56 11/17/2025 12:12:49 -70.44, 173.47 90.56 2.94 51
7 11/17/2025 13:03:07 70.33, -18.97 89.34 11/17/2025 13:03:33 70.31, -19.02 89.33 2.75 26
8 11/17/2025 13:52:53 -69.34, 147.30 91.65 11/17/2025 13:53:58 -69.34, 149.76 91.64 96.75 65
9 11/20/2025 03:40:24 71.16, 122.92 90.79 11/20/2025 03:39:16 71.22, 120.64 90.85 82.04 68
10 11/20/2025 04:30:06 -70.40, -70.61 89.98 11/20/2025 04:29:44 -70.41, -70.69 89.97 3.06 22
11 11/20/2025 05:19:33 70.29, 96.87 89.92 11/20/2025 05:20:28 70.28, 96.81 89.92 2.15 55
12 11/22/2025 19:57:01 70.43,-122.31 90.63 11/22/2025 19:55:55 70.41,-122.24 90.62 3.15 66
13 11/22/2025 20:46:31 -70.32, 45.17 89.47 11/22/2025 20:46:37 -70.33, 45.21 89.46 2.04 6
14 11/22/2025 21:36:04 69.87,-147.82 90.09 11/22/2025 21:37:14 69.84,-146.72 90.06 42.32 70

Figure of LANDSAT-8 and NPP satellite orbits during SNOs since TLE Epoch: 11/11/2025
SNOs_Map_LANDSAT-8_NPP_20251112.jpg

Download SNOs between LANDSAT-8 and NPP since TLE EPOCH: 11/11/2025 in txt file.

Historial Predications of SNOs between LANDSAT-8 and NPP