Simultaneous Nadir Overpasses (SNOs) Predictions

Prediction of SNOs between NPP and LANDSAT-9 Satellite Orbit:

Table of predicted SNOs for the next 14.0 days since TLE Epoch: 6/8/2025
Index Date (NPP) Time (NPP) Lat,Lon (NPP) SZA (NPP ) Date (LANDSAT-9) Time (LANDSAT-9) Lat,Lon (LANDSAT-9) SZA (LANDSAT-9 ) Distance(km) Time Diff (sec)
1 06/09/2025 04:52:57 70.63, 102.58 47.63 06/09/2025 04:54:08 70.51, 103.39 47.48 32.87 71
2 06/09/2025 05:43:33 -70.20, -89.42 132.82 06/09/2025 05:43:42 -70.17, -89.46 132.85 3.35 9
3 06/09/2025 06:34:17 70.10, 78.03 47.08 06/09/2025 06:33:09 70.08, 78.04 47.06 3.07 68
4 06/11/2025 21:09:47 70.27,-141.07 47.06 06/11/2025 21:10:44 70.28,-141.07 47.07 1.50 57
5 06/11/2025 22:00:29 -70.15, 26.42 133.06 06/11/2025 22:00:14 -70.17, 26.41 133.05 1.82 15
6 06/11/2025 22:51:01 69.42,-165.18 46.19 06/11/2025 22:49:52 69.46,-166.93 46.28 68.41 69
7 06/14/2025 13:26:43 70.23, -25.24 46.88 06/14/2025 13:27:16 70.25, -25.23 46.90 2.61 33
8 06/14/2025 14:17:25 -70.11, 142.25 133.24 06/14/2025 14:16:46 -70.14, 142.24 133.21 3.40 39
9 06/17/2025 04:53:03 -70.75, -77.62 132.66 06/17/2025 04:54:13 -70.69, -76.36 132.78 46.99 70
10 06/17/2025 05:43:38 70.19, 90.59 46.75 06/17/2025 05:43:47 70.20, 90.57 46.75 1.20 9
11 06/17/2025 06:34:20 -70.08,-101.92 133.37 06/17/2025 06:33:17 -70.09,-101.95 133.35 2.31 63
12 06/19/2025 21:09:51 -70.30, 38.88 133.18 06/19/2025 21:10:51 -70.29, 38.93 133.21 2.56 60
13 06/19/2025 22:00:34 70.16,-153.58 46.67 06/19/2025 22:00:18 70.18,-153.59 46.69 1.89 16
14 06/19/2025 22:51:07 -69.57, 14.62 133.94 06/19/2025 22:49:57 -69.58, 13.21 133.88 54.48 70
15 06/22/2025 13:26:46 -70.22, 154.78 133.26 06/22/2025 13:27:22 -70.24, 154.75 133.24 2.79 36
16 06/22/2025 14:17:30 70.13, -37.77 46.65 06/22/2025 14:16:49 70.13, -37.77 46.65 0.25 41

Figure of NPP and LANDSAT-9 satellite orbits during SNOs since TLE Epoch: 6/8/2025
SNOs_Map_NPP_LANDSAT-9_20250609.jpg

Download SNOs between NPP and LANDSAT-9 since TLE EPOCH: 06/08/2025 in txt file.

Historial Predications of SNOs between NPP and LANDSAT-9