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: 7/9/2023
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 07/11/2023 13:26:16 70.37, -25.18 48.26 07/11/2023 13:27:15 70.35, -25.11 48.23 3.33 59
2 07/11/2023 14:16:57 -70.23, 142.35 131.88 07/11/2023 14:16:45 -70.23, 142.36 131.88 0.25 12
3 07/11/2023 15:07:31 69.58, -49.36 47.44 07/11/2023 15:06:21 69.64, -50.84 47.57 57.52 70
4 07/14/2023 05:43:10 70.27, 90.73 48.54 07/14/2023 05:43:46 70.28, 90.68 48.55 2.63 36
5 07/14/2023 06:33:52 -70.18,-101.82 131.55 07/14/2023 06:33:16 -70.17,-101.85 131.55 1.87 36
6 07/16/2023 21:09:32 -70.92, 38.13 130.35 07/16/2023 21:10:41 -70.79, 39.68 130.55 58.40 69
7 07/16/2023 22:00:05 70.23,-153.45 48.93 07/16/2023 22:00:16 70.25,-153.48 48.95 2.70 11
8 07/16/2023 22:50:47 -70.14, 14.01 131.16 07/16/2023 22:49:46 -70.14, 14.00 131.15 0.41 61
9 07/19/2023 13:26:16 -70.32, 154.88 130.52 07/19/2023 13:27:19 -70.31, 154.84 130.54 1.73 63
10 07/19/2023 14:17:00 70.20, -37.64 49.36 07/19/2023 14:16:46 70.20, -37.67 49.36 1.42 14
11 07/19/2023 15:07:33 -69.64, 130.53 131.22 07/19/2023 15:06:23 -69.71, 129.27 131.10 49.25 70
12 07/22/2023 05:43:10 -70.29, -89.32 130.04 07/22/2023 05:43:47 -70.29, -89.30 130.05 0.79 37
13 07/22/2023 06:33:54 70.18, 78.16 49.85 07/22/2023 06:33:14 70.18, 78.18 49.85 0.80 40

Figure of NPP and LANDSAT-9 satellite orbits during SNOs since TLE Epoch: 7/9/2023
SNOs_Map_NPP_LANDSAT-9_20230709.jpg

Download SNOs between NPP and LANDSAT-9 since TLE EPOCH: 07/09/2023 in txt file.

Historial Predications of SNOs between NPP and LANDSAT-9