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: 6/22/2025
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 06/22/2025 13:26:46 -70.25, 154.74 133.22 06/22/2025 13:27:23 -70.25, 154.75 133.24 0.76 37
2 06/22/2025 14:17:30 70.15, -37.79 46.67 06/22/2025 14:16:50 70.15, -37.75 46.67 1.72 40
3 06/25/2025 04:53:08 70.76, 102.39 47.36 06/25/2025 04:54:18 70.66, 103.60 47.22 45.93 70
4 06/25/2025 05:43:41 -70.24, -89.46 133.19 06/25/2025 05:43:53 -70.22, -89.41 133.21 2.64 12
5 06/25/2025 06:34:25 70.13, 78.01 46.70 06/25/2025 06:33:20 70.12, 78.09 46.70 2.95 65
6 06/27/2025 21:09:54 70.27,-141.05 46.95 06/27/2025 21:10:54 70.28,-141.07 46.96 1.75 60
7 06/27/2025 22:00:36 -70.17, 26.42 133.15 06/27/2025 22:00:24 -70.18, 26.41 133.15 0.72 12
8 06/27/2025 22:51:09 69.48,-165.24 46.13 06/27/2025 22:50:00 69.57,-166.79 46.29 61.26 69
9 06/30/2025 13:26:50 70.26, -25.26 47.10 06/30/2025 13:27:24 70.28, -25.20 47.10 2.97 34
10 06/30/2025 14:17:32 -70.16, 142.20 133.01 06/30/2025 14:16:54 -70.17, 142.28 133.00 3.17 38
11 07/03/2025 04:53:11 -70.83, -77.72 132.10 07/03/2025 04:54:20 -70.75, -76.26 132.25 54.33 69
12 07/03/2025 05:43:45 70.20, 90.60 47.24 07/03/2025 05:43:55 70.20, 90.57 47.23 1.28 10
13 07/03/2025 06:34:27 -70.10,-101.93 132.87 07/03/2025 06:33:25 -70.10,-101.94 132.86 0.58 62
14 07/05/2025 21:09:57 -70.31, 38.90 132.41 07/05/2025 21:10:58 -70.28, 38.93 132.45 3.20 61
15 07/05/2025 22:00:39 70.15,-153.54 47.43 07/05/2025 22:00:24 70.16,-153.60 47.45 3.11 15
16 07/05/2025 22:51:12 -69.58, 14.64 133.17 07/05/2025 22:50:02 -69.63, 13.29 133.06 52.76 70

Figure of NPP and LANDSAT-9 satellite orbits during SNOs since TLE Epoch: 6/22/2025
SNOs_Map_NPP_LANDSAT-9_20250622.jpg

Download SNOs between NPP and LANDSAT-9 since TLE EPOCH: 06/22/2025 in txt file.

Historial Predications of SNOs between NPP and LANDSAT-9