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: 1/13/2023
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 01/13/2023 22:00:02 -70.20, 26.42 88.42 01/13/2023 22:01:06 -70.22, 26.41 88.41 1.57 64
2 01/13/2023 22:50:46 70.09,-166.09 91.46 01/13/2023 22:50:33 70.11,-166.09 91.49 2.92 13
3 01/13/2023 23:41:20 -69.57, 2.00 89.09 01/13/2023 23:40:09 -69.67, 0.92 88.95 42.91 71
4 01/16/2023 14:16:59 -70.18, 142.22 88.92 01/16/2023 14:17:34 -70.15, 142.21 88.95 3.34 35
5 01/16/2023 15:07:43 70.07, -50.29 90.96 01/16/2023 15:07:01 70.04, -50.30 90.94 2.79 42
6 01/19/2023 05:43:16 70.43, 90.29 90.83 01/19/2023 05:44:28 70.33, 90.72 90.70 19.58 72
7 01/19/2023 06:33:54 -70.12,-101.91 89.51 01/19/2023 06:34:00 -70.11,-101.96 89.52 2.05 6
8 01/19/2023 07:24:38 70.01, 65.57 90.37 01/19/2023 07:23:27 70.00, 65.53 90.37 1.97 71
9 01/21/2023 22:00:09 70.22,-153.61 90.03 01/21/2023 22:00:56 70.20,-153.58 90.00 3.05 47
10 01/21/2023 22:50:50 -70.07, 13.94 90.14 01/21/2023 22:50:26 -70.09, 13.90 90.11 2.98 24
11 01/24/2023 13:26:35 -71.02, 153.56 89.74 01/24/2023 13:27:43 -70.91, 155.74 89.93 79.96 68
12 01/24/2023 14:17:04 70.13, -37.70 89.32 01/24/2023 14:17:22 70.14, -37.76 89.33 2.82 18
13 01/24/2023 15:07:46 -70.03, 129.78 90.81 01/24/2023 15:06:52 -70.04, 129.72 90.78 2.54 54

Figure of NPP and LANDSAT-9 satellite orbits during SNOs since TLE Epoch: 1/13/2023
SNOs_Map_NPP_LANDSAT-9_20230113.jpg

Download SNOs between NPP and LANDSAT-9 since TLE EPOCH: 01/13/2023 in txt file.

Historial Predications of SNOs between NPP and LANDSAT-9