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: 9/12/2025
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 09/14/2025 13:03:08 70.31, -19.00 67.03 09/14/2025 13:02:23 70.31, -18.97 67.04 1.18 45
2 09/14/2025 13:52:38 -70.20, 148.47 113.07 09/14/2025 13:53:05 -70.21, 148.51 113.06 1.85 27
3 09/17/2025 04:30:01 -71.01, -69.71 111.26 09/17/2025 04:28:52 -71.07, -71.76 111.17 74.64 69
4 09/17/2025 05:19:39 70.31, 96.88 68.06 09/17/2025 05:19:23 70.29, 96.82 68.04 3.27 16
5 09/17/2025 06:09:09 -70.20, -95.64 112.04 09/17/2025 06:10:05 -70.18, -95.69 112.06 3.16 56
6 09/19/2025 20:46:43 -70.36, 45.18 110.87 09/19/2025 20:45:38 -70.37, 45.14 110.86 1.70 65
7 09/19/2025 21:36:10 70.25,-147.33 69.04 09/19/2025 21:36:22 70.28,-147.40 69.06 3.43 12
8 09/19/2025 22:25:47 -69.77, 19.61 111.43 09/19/2025 22:26:57 -69.79, 20.66 111.42 40.42 70
9 09/22/2025 13:03:15 -70.30, 160.97 109.89 09/22/2025 13:02:37 -70.30, 161.01 109.89 1.71 38
10 09/22/2025 13:52:42 70.19, -31.55 70.02 09/22/2025 13:53:21 70.21, -31.54 70.04 2.40 39
11 09/25/2025 04:30:12 70.61, 109.66 71.44 09/25/2025 04:29:00 70.68, 108.85 71.53 31.13 72
12 09/25/2025 05:19:46 -70.29, -83.18 108.87 09/25/2025 05:19:37 -70.29, -83.21 108.86 1.35 9
13 09/25/2025 06:09:13 70.18, 84.31 71.04 09/25/2025 06:10:20 70.15, 84.31 71.02 2.42 67

Figure of LANDSAT-8 and NPP satellite orbits during SNOs since TLE Epoch: 9/12/2025
SNOs_Map_LANDSAT-8_NPP_20250913.jpg

Download SNOs between LANDSAT-8 and NPP since TLE EPOCH: 09/12/2025 in txt file.

Historial Predications of SNOs between LANDSAT-8 and NPP