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: 6/2/2025
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 06/03/2025 21:09:41 -70.28, 38.91 132.22 06/03/2025 21:10:39 -70.27, 38.93 132.23 0.87 58
2 06/03/2025 22:00:25 70.19,-153.64 47.69 06/03/2025 22:00:06 70.18,-153.57 47.68 2.96 19
3 06/03/2025 22:50:55 -69.44, 14.80 133.09 06/03/2025 22:49:46 -69.51, 13.13 132.98 65.30 69
4 06/06/2025 13:26:37 -70.22, 154.76 132.56 06/06/2025 13:27:08 -70.20, 154.71 132.59 3.17 31
5 06/06/2025 14:17:20 70.08, -37.71 47.29 06/06/2025 14:16:35 70.10, -37.79 47.32 3.59 45
6 06/09/2025 04:52:53 70.40, 102.94 47.40 06/09/2025 04:54:04 70.38, 103.23 47.36 11.33 71
7 06/09/2025 05:43:33 -70.18, -89.39 132.85 06/09/2025 05:43:36 -70.16, -89.46 132.87 3.23 3
8 06/09/2025 06:34:16 70.04, 78.13 47.01 06/09/2025 06:33:03 70.05, 78.04 47.03 3.96 73
9 06/11/2025 21:09:47 70.26,-141.06 47.06 06/11/2025 21:10:33 70.25,-141.06 47.04 0.84 46
10 06/11/2025 22:00:28 -70.14, 26.44 133.08 06/11/2025 22:00:02 -70.15, 26.42 133.07 0.97 26
11 06/14/2025 12:36:13 -71.10, 166.03 132.21 06/14/2025 12:37:20 -70.98, 168.28 132.40 82.61 67
12 06/14/2025 13:26:42 70.23, -25.24 46.88 06/14/2025 13:26:59 70.21, -25.22 46.86 2.31 17
13 06/14/2025 14:17:24 -70.11, 142.26 133.25 06/14/2025 14:16:29 -70.11, 142.26 133.25 0.43 55

Figure of NPP and LANDSAT-9 satellite orbits during SNOs since TLE Epoch: 6/2/2025
SNOs_Map_NPP_LANDSAT-9_20250602.jpg

Download SNOs between NPP and LANDSAT-9 since TLE EPOCH: 06/02/2025 in txt file.

Historial Predications of SNOs between NPP and LANDSAT-9