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: 11/4/2025
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 11/05/2025 12:38:05 -70.36, 167.21 93.90 11/05/2025 12:38:36 -70.35, 167.23 93.91 1.45 31
2 11/05/2025 13:28:49 70.25, -25.29 86.00 11/05/2025 13:28:03 70.25, -25.27 86.00 0.83 46
3 11/08/2025 04:04:24 70.68, 115.17 87.20 11/08/2025 04:05:35 70.56, 115.77 87.08 26.04 71
4 11/08/2025 04:55:01 -70.33, -76.95 93.15 11/08/2025 04:55:07 -70.34, -76.91 93.13 2.22 6
5 11/08/2025 05:45:45 70.21, 90.54 86.75 11/08/2025 05:44:34 70.24, 90.58 86.78 3.29 71
6 11/10/2025 20:21:15 70.38,-128.58 87.66 11/10/2025 20:22:08 70.41,-128.57 87.69 2.95 53
7 11/10/2025 21:11:57 -70.29, 38.88 92.42 11/10/2025 21:11:38 -70.31, 38.91 92.41 1.73 19
8 11/10/2025 22:02:26 69.38,-152.44 86.69 11/10/2025 22:01:19 69.42,-154.67 86.72 87.36 67
9 11/13/2025 12:38:10 70.36, -12.76 88.36 11/13/2025 12:38:38 70.35, -12.79 88.35 1.61 28
10 11/13/2025 13:28:52 -70.27, 154.70 91.72 11/13/2025 13:28:08 -70.24, 154.70 91.75 2.83 44
11 11/16/2025 04:04:27 -70.72, -64.87 90.61 11/16/2025 04:05:38 -70.59, -64.19 90.73 28.95 71
12 11/16/2025 04:55:06 70.34, 103.05 89.03 11/16/2025 04:55:08 70.31, 103.05 89.00 2.94 2
13 11/16/2025 05:45:47 -70.20, -89.42 91.11 11/16/2025 05:44:38 -70.21, -89.47 91.10 2.44 69
14 11/18/2025 20:21:17 -70.39, 51.43 90.29 11/18/2025 20:22:11 -70.37, 51.37 90.31 3.47 54

Figure of NPP and LANDSAT-9 satellite orbits during SNOs since TLE Epoch: 11/4/2025
SNOs_Map_NPP_LANDSAT-9_20251105.jpg

Download SNOs between NPP and LANDSAT-9 since TLE EPOCH: 11/04/2025 in txt file.

Historial Predications of SNOs between NPP and LANDSAT-9