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: 9/3/2025
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 09/03/2025 20:46:27 -70.87, 45.96 116.44 09/03/2025 20:45:17 -70.92, 44.32 116.34 59.97 70
2 09/03/2025 21:36:03 70.28,-147.27 63.00 09/03/2025 21:35:51 70.28,-147.32 63.00 1.79 12
3 09/03/2025 22:25:33 -70.16, 20.19 117.10 09/03/2025 22:26:32 -70.14, 20.22 117.14 3.35 59
4 09/06/2025 13:03:05 -70.34, 161.06 115.96 09/06/2025 13:02:06 -70.35, 161.01 115.95 2.25 59
5 09/06/2025 13:52:32 70.24, -31.45 63.95 09/06/2025 13:52:50 70.24, -31.50 63.95 2.08 18
6 09/06/2025 14:42:12 -69.58, 135.26 116.68 09/06/2025 14:43:21 -69.56, 136.83 116.73 61.09 69
7 09/09/2025 05:19:35 -70.27, -83.17 115.04 09/09/2025 05:19:05 -70.27, -83.10 115.03 2.65 30
8 09/09/2025 06:09:02 70.16, 84.32 64.88 09/09/2025 06:09:49 70.16, 84.38 64.87 2.26 47
9 09/11/2025 20:46:33 70.37,-134.77 66.06 09/11/2025 20:45:23 70.35,-134.79 66.06 1.58 70
10 09/11/2025 21:36:03 -70.26, 32.70 114.03 09/11/2025 21:36:05 -70.24, 32.70 114.05 1.69 2
11 09/11/2025 22:25:34 69.93,-160.12 65.66 09/11/2025 22:26:45 69.93,-159.51 65.65 23.24 71
12 09/14/2025 13:03:01 70.31, -18.96 67.03 09/14/2025 13:02:22 70.29, -18.94 67.02 2.22 39
13 09/14/2025 13:52:31 -70.21, 148.52 113.06 09/14/2025 13:53:05 -70.23, 148.47 113.04 3.16 34
14 09/17/2025 04:29:55 -70.66, -70.19 111.61 09/17/2025 04:28:43 -70.70, -71.15 111.55 35.37 72

Figure of LANDSAT-8 and NPP satellite orbits during SNOs since TLE Epoch: 9/3/2025
SNOs_Map_LANDSAT-8_NPP_20250903.jpg

Download SNOs between LANDSAT-8 and NPP since TLE EPOCH: 09/03/2025 in txt file.

Historial Predications of SNOs between LANDSAT-8 and NPP