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: 1/6/2025
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 01/08/2025 06:33:13 -70.10,-102.03 87.73 01/08/2025 06:33:49 -70.08,-102.00 87.76 2.49 36
2 01/08/2025 07:23:56 69.95, 65.51 92.11 01/08/2025 07:23:16 69.98, 65.50 92.14 3.19 40
3 01/10/2025 21:59:34 70.52,-154.23 92.33 01/10/2025 22:00:45 70.41,-153.28 92.19 37.10 71
4 01/10/2025 22:50:09 -70.03, 13.84 88.19 01/10/2025 22:50:20 -70.04, 13.81 88.19 1.24 11
5 01/10/2025 23:40:53 69.94,-178.71 91.71 01/10/2025 23:39:47 69.93,-178.70 91.71 1.33 66
6 01/13/2025 14:16:23 70.10, -37.81 91.46 01/13/2025 14:17:20 70.13, -37.82 91.48 3.33 57
7 01/13/2025 15:07:06 -70.03, 129.61 88.62 01/13/2025 15:06:50 -70.03, 129.67 88.63 2.49 16
8 01/13/2025 15:57:36 69.25, -61.94 90.56 01/13/2025 15:56:27 69.30, -63.67 90.68 68.46 69
9 01/16/2025 06:33:18 70.06, 78.01 90.94 01/16/2025 06:33:49 70.10, 78.02 90.96 3.65 31
10 01/16/2025 07:24:01 -70.00,-114.57 89.15 01/16/2025 07:23:19 -70.00,-114.49 89.14 2.96 42
11 01/18/2025 21:59:37 -70.50, 25.80 89.14 01/18/2025 22:00:48 -70.39, 26.67 89.29 34.83 71
12 01/18/2025 22:50:14 70.05,-166.19 90.39 01/18/2025 22:50:19 70.05,-166.17 90.39 0.92 5
13 01/18/2025 23:40:56 -69.92, 1.31 89.75 01/18/2025 23:39:49 -69.95, 1.33 89.72 3.48 67

Figure of NPP and LANDSAT-9 satellite orbits during SNOs since TLE Epoch: 1/6/2025
SNOs_Map_NPP_LANDSAT-9_20250106.jpg

Download SNOs between NPP and LANDSAT-9 since TLE EPOCH: 01/06/2025 in txt file.

Historial Predications of SNOs between NPP and LANDSAT-9