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: 9/4/2023
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 09/05/2023 14:16:44 70.20, -37.69 63.36 09/05/2023 14:17:09 70.21, -37.67 63.37 1.09 25
2 09/05/2023 15:07:26 -70.11, 129.77 116.72 09/05/2023 15:06:39 -70.09, 129.80 116.74 1.84 47
3 09/08/2023 05:42:58 -70.62, -89.89 115.23 09/08/2023 05:44:09 -70.47, -89.06 115.40 34.86 71
4 09/08/2023 06:33:35 70.15, 78.16 64.30 09/08/2023 06:33:40 70.15, 78.12 64.30 1.87 5
5 09/08/2023 07:24:17 -70.05,-114.37 115.79 09/08/2023 07:23:10 -70.04,-114.41 115.80 1.81 67
6 09/10/2023 21:59:44 -70.25, 26.46 114.60 09/10/2023 22:00:44 -70.22, 26.46 114.63 3.38 60
7 09/10/2023 22:50:27 70.10,-165.99 65.26 09/10/2023 22:50:11 70.12,-166.05 65.28 3.02 16
8 09/10/2023 23:40:59 -69.47, 2.26 115.37 09/10/2023 23:39:50 -69.52, 0.75 115.30 59.01 69
9 09/13/2023 14:16:36 -70.21, 142.30 113.63 09/13/2023 14:17:14 -70.22, 142.34 113.62 1.84 38
10 09/13/2023 15:07:20 70.11, -50.24 66.29 09/13/2023 15:06:41 70.11, -50.18 66.29 2.22 39
11 09/16/2023 05:42:57 70.86, 89.72 68.06 09/16/2023 05:44:06 70.73, 91.34 67.90 61.02 69
12 09/16/2023 06:33:28 -70.17,-101.87 112.64 09/16/2023 06:33:44 -70.19,-101.82 112.62 2.78 16
13 09/16/2023 07:24:12 70.08, 65.59 67.28 09/16/2023 07:23:11 70.08, 65.66 67.28 2.74 61

Figure of NPP and LANDSAT-9 satellite orbits during SNOs since TLE Epoch: 9/4/2023
SNOs_Map_NPP_LANDSAT-9_20230904.jpg

Download SNOs between NPP and LANDSAT-9 since TLE EPOCH: 09/04/2023 in txt file.

Historial Predications of SNOs between NPP and LANDSAT-9