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: 7/7/2023
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 07/08/2023 21:09:29 70.81,-141.66 48.39 07/08/2023 21:10:39 70.68,-140.49 48.21 45.23 70
2 07/08/2023 22:00:02 -70.26, 26.55 132.19 07/08/2023 22:00:15 -70.24, 26.49 132.21 2.86 13
3 07/08/2023 22:50:46 70.13,-165.95 47.69 07/08/2023 22:49:42 70.14,-166.01 47.71 2.40 64
4 07/11/2023 13:26:16 70.34, -25.14 48.23 07/11/2023 13:27:16 70.31, -25.16 48.20 3.25 60
5 07/11/2023 14:16:57 -70.20, 142.39 131.91 07/11/2023 14:16:46 -70.20, 142.31 131.91 2.99 11
6 07/11/2023 15:07:31 69.55, -49.33 47.42 07/11/2023 15:06:22 69.60, -50.88 47.53 60.64 69
7 07/14/2023 05:43:11 70.30, 90.69 48.57 07/14/2023 05:43:46 70.30, 90.71 48.57 0.75 35
8 07/14/2023 06:33:53 -70.21,-101.86 131.52 07/14/2023 06:33:16 -70.19,-101.82 131.54 2.43 37
9 07/16/2023 21:09:31 -70.90, 38.18 130.38 07/16/2023 21:10:40 -70.81, 39.71 130.53 56.63 69
10 07/16/2023 22:00:05 70.26,-153.49 48.96 07/16/2023 22:00:15 70.27,-153.46 48.96 1.35 10
11 07/16/2023 22:50:47 -70.17, 13.97 131.14 07/16/2023 22:49:45 -70.16, 14.02 131.14 2.19 62
12 07/19/2023 13:26:16 -70.34, 154.84 130.50 07/19/2023 13:27:18 -70.32, 154.86 130.53 2.45 62
13 07/19/2023 14:17:00 70.22, -37.68 49.39 07/19/2023 14:16:45 70.21, -37.66 49.37 2.11 15
14 07/19/2023 15:07:33 -69.66, 130.49 131.20 07/19/2023 15:06:22 -69.72, 129.29 131.09 47.08 71

Figure of NPP and LANDSAT-9 satellite orbits during SNOs since TLE Epoch: 7/7/2023
SNOs_Map_NPP_LANDSAT-9_20230707.jpg

Download SNOs between NPP and LANDSAT-9 since TLE EPOCH: 07/07/2023 in txt file.

Historial Predications of SNOs between NPP and LANDSAT-9