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: 7/8/2023
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 70.80,-141.64 48.38 07/08/2023 21:10:39 70.69,-140.47 48.22 44.54 70
2 07/08/2023 22:00:02 -70.25, 26.56 132.20 07/08/2023 22:00:15 -70.25, 26.50 132.20 2.21 13
3 07/08/2023 22:50:47 70.17,-166.02 47.73 07/08/2023 22:49:42 70.15,-165.99 47.72 2.66 65
4 07/11/2023 13:26:16 70.33, -25.13 48.23 07/11/2023 13:27:16 70.32, -25.15 48.20 1.55 60
5 07/11/2023 14:16:57 -70.20, 142.40 131.92 07/11/2023 14:16:46 -70.21, 142.32 131.90 3.28 11
6 07/11/2023 15:07:31 69.54, -49.31 47.41 07/11/2023 15:06:22 69.61, -50.87 47.54 60.92 69
7 07/14/2023 05:43:10 70.29, 90.70 48.56 07/14/2023 05:43:45 70.30, 90.71 48.57 1.72 35
8 07/14/2023 06:33:52 -70.20,-101.85 131.53 07/14/2023 06:33:15 -70.19,-101.81 131.53 1.67 37
9 07/16/2023 21:09:31 -70.89, 38.18 130.38 07/16/2023 21:10:40 -70.81, 39.70 130.53 56.40 69
10 07/16/2023 22:00:05 70.25,-153.48 48.95 07/16/2023 22:00:15 70.26,-153.46 48.96 1.33 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 2.00 62
12 07/19/2023 13:26:15 -70.29, 154.92 130.55 07/19/2023 13:27:18 -70.31, 154.84 130.54 3.57 63
13 07/19/2023 14:17:00 70.23, -37.68 49.39 07/19/2023 14:16:45 70.20, -37.67 49.36 3.09 15
14 07/19/2023 15:07:33 -69.66, 130.49 131.20 07/19/2023 15:06:22 -69.71, 129.28 131.09 47.26 71

Figure of NPP and LANDSAT-9 satellite orbits during SNOs since TLE Epoch: 7/8/2023
SNOs_Map_NPP_LANDSAT-9_20230708.jpg

Download SNOs between NPP and LANDSAT-9 since TLE EPOCH: 07/08/2023 in txt file.

Historial Predications of SNOs between NPP and LANDSAT-9