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: 9/8/2025
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 09/09/2025 05:19:36 -70.28, -83.15 115.02 09/09/2025 05:19:06 -70.28, -83.12 115.02 1.10 30
2 09/09/2025 06:09:03 70.18, 84.35 64.90 09/09/2025 06:09:50 70.17, 84.37 64.88 2.16 47
3 09/11/2025 20:46:35 70.33,-134.83 66.03 09/11/2025 20:45:23 70.35,-134.79 66.05 2.66 72
4 09/11/2025 21:36:04 -70.27, 32.71 114.02 09/11/2025 21:36:05 -70.25, 32.69 114.04 3.06 1
5 09/11/2025 22:25:34 70.00,-160.02 65.74 09/11/2025 22:26:46 69.98,-159.59 65.70 16.84 72
6 09/14/2025 13:03:04 70.30, -19.00 67.02 09/14/2025 13:02:23 70.33, -18.99 67.05 3.31 41
7 09/14/2025 13:52:34 -70.19, 148.48 113.08 09/14/2025 13:53:05 -70.22, 148.50 113.05 3.45 31
8 09/17/2025 04:29:58 -70.78, -70.03 111.49 09/17/2025 04:28:47 -70.82, -71.35 111.43 48.40 71
9 09/17/2025 05:19:33 70.24, 96.81 67.99 09/17/2025 05:19:22 70.25, 96.88 68.01 3.08 11
10 09/17/2025 06:09:02 -70.19, -95.64 112.05 09/17/2025 06:10:05 -70.19, -95.71 112.05 2.84 63
11 09/19/2025 20:46:34 -70.33, 45.18 110.90 09/19/2025 20:45:38 -70.33, 45.20 110.90 0.82 56
12 09/19/2025 21:36:01 70.22,-147.33 69.01 09/19/2025 21:36:22 70.24,-147.35 69.03 2.69 21
13 09/19/2025 22:25:44 -69.40, 19.16 111.79 09/19/2025 22:26:51 -69.44, 21.18 111.78 78.96 67
14 09/22/2025 12:13:17 71.16, -5.30 70.96 09/22/2025 12:12:10 71.23, -7.84 71.06 91.69 67
15 09/22/2025 13:03:01 -70.29, 161.02 109.90 09/22/2025 13:02:36 -70.27, 161.06 109.92 3.02 25
16 09/22/2025 13:52:28 70.18, -31.50 70.00 09/22/2025 13:53:20 70.18, -31.49 70.01 0.83 52

Figure of LANDSAT-8 and NPP satellite orbits during SNOs since TLE Epoch: 9/8/2025
SNOs_Map_LANDSAT-8_NPP_20250909.jpg

Download SNOs between LANDSAT-8 and NPP since TLE EPOCH: 09/08/2025 in txt file.

Historial Predications of SNOs between LANDSAT-8 and NPP