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: 3/28/2024
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 03/28/2024 21:59:26 70.57,-154.15 67.10 03/28/2024 22:00:37 70.43,-153.34 66.93 33.90 71
2 03/28/2024 22:50:01 -70.12, 13.87 113.38 03/28/2024 22:50:10 -70.15, 13.89 113.36 3.09 9
3 03/28/2024 23:40:45 69.99,-178.62 66.47 03/28/2024 23:39:38 69.99,-178.69 66.48 2.58 67
4 03/31/2024 14:16:15 70.15, -37.74 65.62 03/31/2024 14:17:06 70.17, -37.82 65.64 3.40 51
5 03/31/2024 15:06:57 -70.07, 129.70 114.48 03/31/2024 15:06:36 -70.06, 129.66 114.49 2.32 21
6 03/31/2024 15:57:24 69.04, -61.50 64.44 03/31/2024 15:56:18 69.12, -63.97 64.60 98.56 66
7 04/03/2024 05:42:42 -71.08, -90.79 114.43 04/03/2024 05:43:49 -70.96, -88.39 114.63 87.96 67
8 04/03/2024 06:33:10 70.12, 78.07 64.56 04/03/2024 06:33:29 70.14, 78.03 64.57 1.95 19
9 04/03/2024 07:23:52 -70.04,-114.49 115.55 04/03/2024 07:22:59 -70.03,-114.49 115.55 1.40 53
10 04/05/2024 21:59:22 -70.22, 26.37 116.35 04/05/2024 22:00:25 -70.22, 26.41 116.36 1.85 63
11 04/05/2024 22:50:06 70.11,-166.14 63.52 04/05/2024 22:49:52 70.10,-166.11 63.52 1.30 14
12 04/05/2024 23:40:40 -69.60, 1.94 117.03 04/05/2024 23:39:29 -69.61, 0.84 116.97 42.39 71
13 04/08/2024 14:16:17 -70.16, 142.22 117.42 04/08/2024 14:16:48 -70.14, 142.21 117.45 2.38 31
14 04/08/2024 15:07:01 70.05, -50.29 62.45 04/08/2024 15:06:15 70.02, -50.32 62.43 3.21 46

Figure of NPP and LANDSAT-9 satellite orbits during SNOs since TLE Epoch: 3/28/2024
SNOs_Map_NPP_LANDSAT-9_20240328.jpg

Download SNOs between NPP and LANDSAT-9 since TLE EPOCH: 03/28/2024 in txt file.

Historial Predications of SNOs between NPP and LANDSAT-9