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: 9/11/2025
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 09/11/2025 22:25:36 70.01,-160.03 65.74 09/11/2025 22:26:48 70.04,-159.68 65.76 13.68 72
2 09/14/2025 13:03:07 70.34, -18.95 67.06 09/14/2025 13:02:23 70.33, -19.01 67.06 2.09 44
3 09/14/2025 13:52:37 -70.23, 148.52 113.04 09/14/2025 13:53:05 -70.23, 148.48 113.04 1.62 28
4 09/17/2025 04:30:00 -71.05, -69.65 111.23 09/17/2025 04:28:52 -71.09, -71.80 111.15 77.75 68
5 09/17/2025 05:19:39 70.29, 96.85 68.04 09/17/2025 05:19:22 70.26, 96.86 68.02 3.03 17
6 09/17/2025 06:09:09 -70.18, -95.68 112.06 09/17/2025 06:10:05 -70.20, -95.73 112.04 3.04 56
7 09/19/2025 20:46:44 -70.34, 45.15 110.89 09/19/2025 20:45:38 -70.34, 45.19 110.89 1.55 66
8 09/19/2025 21:36:11 70.23,-147.36 69.02 09/19/2025 21:36:22 70.25,-147.36 69.04 1.97 11
9 09/19/2025 22:25:47 -69.80, 19.66 111.40 09/19/2025 22:26:58 -69.82, 20.62 111.40 37.13 71
10 09/22/2025 13:03:15 -70.33, 161.01 109.86 09/22/2025 13:02:38 -70.33, 160.97 109.86 1.63 37
11 09/22/2025 13:52:42 70.22, -31.50 70.05 09/22/2025 13:53:21 70.19, -31.50 70.01 3.69 39
12 09/25/2025 04:30:11 70.64, 109.71 71.47 09/25/2025 04:29:00 70.71, 108.80 71.56 34.49 71
13 09/25/2025 05:19:46 -70.26, -83.21 108.89 09/25/2025 05:19:36 -70.27, -83.18 108.88 1.64 10
14 09/25/2025 06:09:13 70.15, 84.27 71.01 09/25/2025 06:10:19 70.13, 84.35 71.00 3.45 66

Figure of LANDSAT-8 and NPP satellite orbits during SNOs since TLE Epoch: 9/11/2025
SNOs_Map_LANDSAT-8_NPP_20250912.jpg

Download SNOs between LANDSAT-8 and NPP since TLE EPOCH: 09/11/2025 in txt file.

Historial Predications of SNOs between LANDSAT-8 and NPP