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: 12/2/2025
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 12/03/2025 11:24:03 71.18, 7.03 93.25 12/03/2025 11:22:55 71.24, 4.74 93.32 82.19 68
2 12/03/2025 12:13:45 -70.41, 173.48 87.53 12/03/2025 12:13:22 -70.40, 173.47 87.54 1.91 23
3 12/03/2025 13:03:12 70.31, -19.02 92.38 12/03/2025 13:04:07 70.30, -19.07 92.37 2.25 55
4 12/06/2025 03:40:43 70.47, 121.81 92.87 12/06/2025 03:39:41 70.44, 121.84 92.85 3.33 62
5 12/06/2025 04:30:13 -70.35, -70.72 87.24 12/06/2025 04:30:23 -70.37, -70.73 87.22 2.25 10
6 12/06/2025 05:19:49 69.75, 96.07 92.17 12/06/2025 05:20:58 69.75, 97.53 92.16 56.06 69
7 12/08/2025 19:57:09 70.43,-122.35 93.13 12/08/2025 19:56:41 70.42,-122.38 93.13 1.44 28
8 12/08/2025 20:46:39 -70.32, 45.13 86.98 12/08/2025 20:47:22 -70.30, 45.13 87.00 2.02 43
9 12/11/2025 11:24:09 -70.48,-174.02 86.59 12/11/2025 11:22:57 -70.51,-174.05 86.56 2.86 72
10 12/11/2025 12:13:36 70.37, -6.54 93.31 12/11/2025 12:13:41 70.37, -6.52 93.31 1.03 5
11 12/11/2025 13:03:08 -70.15, 160.78 86.91 12/11/2025 13:04:20 -70.14, 161.16 86.93 14.44 72
12 12/14/2025 03:40:35 -70.45, -58.17 86.43 12/14/2025 03:39:57 -70.45, -58.20 86.43 1.21 38
13 12/14/2025 04:30:02 70.34, 109.31 93.46 12/14/2025 04:30:41 70.31, 109.32 93.44 3.01 39

Figure of LANDSAT-8 and NPP satellite orbits during SNOs since TLE Epoch: 12/2/2025
SNOs_Map_LANDSAT-8_NPP_20251202.jpg

Download SNOs between LANDSAT-8 and NPP since TLE EPOCH: 12/02/2025 in txt file.

Historial Predications of SNOs between LANDSAT-8 and NPP