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: 11/3/2023
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 11/03/2023 06:33:05 -70.18,-101.89 94.94 11/03/2023 06:33:46 -70.18,-101.83 94.94 2.14 41
2 11/03/2023 07:23:49 70.05, 65.61 84.95 11/03/2023 07:23:14 70.02, 65.59 84.92 3.29 35
3 11/05/2023 21:59:27 70.69,-154.25 86.39 11/05/2023 22:00:36 70.59,-152.96 86.30 48.69 69
4 11/05/2023 22:50:00 -70.13, 13.94 94.16 11/05/2023 22:50:12 -70.14, 14.02 94.15 3.04 12
5 11/05/2023 23:40:44 70.01,-178.56 85.73 11/05/2023 23:39:40 69.98,-178.56 85.71 2.36 64
6 11/08/2023 14:16:13 70.18, -37.68 86.68 11/08/2023 14:17:08 70.19, -37.65 86.69 1.90 55
7 11/08/2023 15:06:55 -70.10, 129.76 93.40 11/08/2023 15:06:38 -70.08, 129.82 93.42 3.22 17
8 11/08/2023 15:57:25 69.23, -61.66 85.75 11/08/2023 15:56:17 69.31, -63.59 85.82 76.36 68
9 11/11/2023 06:33:07 70.16, 78.12 87.41 11/11/2023 06:33:32 70.14, 78.19 87.40 3.18 25
10 11/11/2023 07:23:48 -70.02,-114.36 92.72 11/11/2023 07:23:02 -70.03,-114.34 92.71 1.33 46
11 11/13/2023 21:59:18 -70.27, 26.41 91.77 11/13/2023 22:00:29 -70.23, 26.57 91.81 7.31 71
12 11/13/2023 22:50:01 70.10,-166.02 88.08 11/13/2023 22:49:56 70.12,-165.95 88.09 3.73 5
13 11/13/2023 23:40:41 -69.90, 1.59 92.11 11/13/2023 23:39:27 -69.95, 1.45 92.07 7.50 74
14 11/16/2023 14:16:11 -70.16, 142.34 91.19 11/16/2023 14:16:53 -70.17, 142.40 91.18 2.48 42
15 11/16/2023 15:06:55 70.04, -50.17 88.71 11/16/2023 15:06:20 70.06, -50.12 88.72 2.40 35

Figure of NPP and LANDSAT-9 satellite orbits during SNOs since TLE Epoch: 11/3/2023
SNOs_Map_NPP_LANDSAT-9_20231103.jpg

Download SNOs between NPP and LANDSAT-9 since TLE EPOCH: 11/03/2023 in txt file.

Historial Predications of SNOs between NPP and LANDSAT-9