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: 10/21/2023
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 10/23/2023 14:16:10 70.34, -37.88 81.68 10/23/2023 14:17:22 70.29, -37.58 81.63 12.59 72
2 10/23/2023 15:06:49 -70.10, 129.82 98.56 10/23/2023 15:06:53 -70.12, 129.81 98.54 2.91 4
3 10/23/2023 15:57:33 69.97, -62.69 81.34 10/23/2023 15:56:21 69.96, -62.77 81.32 3.19 72
4 10/26/2023 06:33:03 70.15, 78.18 82.42 10/26/2023 06:33:52 70.17, 78.13 82.43 2.46 49
5 10/26/2023 07:23:45 -70.06,-114.37 97.66 10/26/2023 07:23:22 -70.06,-114.39 97.67 0.89 23
6 10/28/2023 21:59:32 -71.14, 25.03 95.70 10/28/2023 22:00:38 -71.04, 27.69 95.79 96.63 66
7 10/28/2023 22:49:59 70.13,-166.03 83.30 10/28/2023 22:50:20 70.12,-166.05 83.29 1.79 21
8 10/28/2023 23:40:40 -69.99, 1.50 96.83 10/28/2023 23:39:50 -70.01, 1.43 96.82 3.38 50
9 10/31/2023 14:16:09 -70.19, 142.33 95.78 10/31/2023 14:17:19 -70.19, 142.31 95.77 1.22 70
10 10/31/2023 15:06:53 70.07, -50.18 84.12 10/31/2023 15:06:46 70.08, -50.21 84.13 1.42 7
11 10/31/2023 15:57:31 -69.77, 117.59 96.17 10/31/2023 15:56:18 -69.87, 117.12 96.08 20.89 73
12 11/03/2023 06:33:04 -70.14,-101.82 94.98 11/03/2023 06:33:46 -70.12,-101.90 95.00 3.40 42
13 11/03/2023 07:23:48 70.02, 65.66 84.93 11/03/2023 07:23:13 70.01, 65.58 84.90 3.56 35

Figure of NPP and LANDSAT-9 satellite orbits during SNOs since TLE Epoch: 10/21/2023
SNOs_Map_NPP_LANDSAT-9_20231021.jpg

Download SNOs between NPP and LANDSAT-9 since TLE EPOCH: 10/21/2023 in txt file.

Historial Predications of SNOs between NPP and LANDSAT-9