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: 11/5/2025
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 11/06/2025 19:57:10 70.87,-121.71 87.01 11/06/2025 19:56:00 70.89,-123.07 87.02 49.84 70
2 11/06/2025 20:46:48 -70.32, 45.10 93.55 11/06/2025 20:46:33 -70.33, 45.15 93.53 2.44 15
3 11/06/2025 21:36:15 70.22,-147.40 86.37 11/06/2025 21:37:17 70.21,-147.35 86.37 2.04 62
4 11/09/2025 12:13:47 70.39, -6.54 87.30 11/09/2025 12:12:47 70.39, -6.47 87.29 2.66 60
5 11/09/2025 13:03:17 -70.28, 160.93 92.81 11/09/2025 13:03:29 -70.30, 160.98 92.79 2.54 12
6 11/09/2025 13:52:54 69.63, -32.35 86.55 11/09/2025 13:54:02 69.60, -30.64 86.53 66.03 68
7 11/12/2025 04:30:14 70.38, 109.33 88.03 11/12/2025 04:29:42 70.36, 109.34 88.01 2.51 32
8 11/12/2025 05:19:44 -70.28, -83.19 92.08 11/12/2025 05:20:24 -70.27, -83.20 92.07 0.23 40
9 11/14/2025 19:57:11 -70.67, 58.00 90.99 11/14/2025 19:55:59 -70.72, 57.23 90.94 29.06 72
10 11/14/2025 20:46:42 70.34,-134.84 88.69 11/14/2025 20:46:38 70.34,-134.85 88.69 0.32 4
11 11/14/2025 21:36:12 -70.24, 32.64 91.41 11/14/2025 21:37:20 -70.26, 32.60 91.39 2.47 68
12 11/17/2025 12:13:43 -70.39, 173.47 90.61 11/17/2025 12:12:49 -70.40, 173.53 90.60 2.35 54
13 11/17/2025 13:03:10 70.28, -19.05 89.29 11/17/2025 13:03:33 70.28, -18.97 89.30 2.88 23

Figure of LANDSAT-8 and NPP satellite orbits during SNOs since TLE Epoch: 11/5/2025
SNOs_Map_LANDSAT-8_NPP_20251106.jpg

Download SNOs between LANDSAT-8 and NPP since TLE EPOCH: 11/05/2025 in txt file.

Historial Predications of SNOs between LANDSAT-8 and NPP