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: 2/18/2023
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 02/20/2023 05:43:20 70.29, 90.58 81.33 02/20/2023 05:44:32 70.27, 90.56 81.30 2.21 72
2 02/20/2023 06:34:02 -70.19,-101.96 98.79 02/20/2023 06:34:01 -70.20,-101.89 98.78 2.97 1
3 02/20/2023 07:24:43 69.92, 65.76 80.92 02/20/2023 07:23:30 69.99, 65.45 81.01 14.05 73
4 02/22/2023 22:00:14 70.27,-153.61 80.34 02/22/2023 22:00:57 70.25,-153.57 80.31 2.58 43
5 02/22/2023 22:50:55 -70.12, 13.94 99.84 02/22/2023 22:50:27 -70.13, 13.90 99.82 2.13 28
6 02/25/2023 13:26:36 -70.99, 153.69 99.88 02/25/2023 13:27:44 -70.90, 155.65 100.06 72.24 68
7 02/25/2023 14:17:07 70.21, -37.73 79.28 02/25/2023 14:17:22 70.19, -37.76 79.26 2.35 15
8 02/25/2023 15:07:49 -70.11, 129.74 100.84 02/25/2023 15:06:51 -70.13, 129.79 100.81 3.27 58
9 02/28/2023 05:43:15 -70.26, -89.34 101.66 02/28/2023 05:44:18 -70.25, -89.41 101.68 2.92 63
10 02/28/2023 06:33:59 70.16, 78.13 78.22 02/28/2023 06:33:45 70.13, 78.07 78.20 3.29 14
11 02/28/2023 07:24:32 -69.58,-113.69 102.40 02/28/2023 07:23:22 -69.64,-114.98 102.28 50.62 70
12 03/02/2023 22:00:08 -70.22, 26.51 102.73 03/02/2023 22:00:41 -70.21, 26.44 102.74 2.81 33
13 03/02/2023 22:50:52 70.12,-166.02 77.15 03/02/2023 22:50:08 70.09,-166.08 77.14 3.46 44

Figure of NPP and LANDSAT-9 satellite orbits during SNOs since TLE Epoch: 2/18/2023
SNOs_Map_NPP_LANDSAT-9_20230218.jpg

Download SNOs between NPP and LANDSAT-9 since TLE EPOCH: 02/18/2023 in txt file.

Historial Predications of SNOs between NPP and LANDSAT-9