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: 6/12/2025
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 06/14/2025 13:26:43 70.24, -25.26 46.89 06/14/2025 13:27:16 70.27, -25.21 46.91 3.22 33
2 06/14/2025 14:17:25 -70.13, 142.23 133.23 06/14/2025 14:16:46 -70.15, 142.26 133.20 2.81 39
3 06/17/2025 04:53:05 -70.83, -77.74 132.59 06/17/2025 04:54:14 -70.72, -76.31 132.74 53.74 69
4 06/17/2025 05:43:38 70.21, 90.57 46.77 06/17/2025 05:43:48 70.18, 90.54 46.74 3.07 10
5 06/17/2025 06:34:20 -70.10,-101.95 133.35 06/17/2025 06:33:18 -70.07,-101.98 133.37 2.90 62
6 06/19/2025 21:09:50 -70.28, 38.92 133.21 06/19/2025 21:10:52 -70.30, 38.94 133.19 2.72 62
7 06/19/2025 22:00:34 70.18,-153.62 46.70 06/19/2025 22:00:19 70.19,-153.57 46.71 2.35 15
8 06/19/2025 22:51:07 -69.60, 14.58 133.92 06/19/2025 22:49:57 -69.65, 13.30 133.82 49.83 70
9 06/22/2025 13:26:46 -70.26, 154.73 133.22 06/22/2025 13:27:24 -70.25, 154.74 133.24 1.09 38
10 06/22/2025 14:17:30 70.16, -37.81 46.68 06/22/2025 14:16:51 70.14, -37.77 46.66 3.02 39
11 06/25/2025 04:53:09 70.82, 102.28 47.43 06/25/2025 04:54:18 70.71, 103.68 47.27 52.75 69
12 06/25/2025 05:43:42 -70.24, -89.47 133.18 06/25/2025 05:43:55 -70.23, -89.40 133.20 2.61 13
13 06/25/2025 06:34:25 70.09, 78.07 46.66 06/25/2025 06:33:22 70.12, 78.08 46.70 2.96 63

Figure of NPP and LANDSAT-9 satellite orbits during SNOs since TLE Epoch: 6/12/2025
SNOs_Map_NPP_LANDSAT-9_20250612.jpg

Download SNOs between NPP and LANDSAT-9 since TLE EPOCH: 06/12/2025 in txt file.

Historial Predications of SNOs between NPP and LANDSAT-9