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: 4/15/2023
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 04/17/2023 04:53:24 70.43, 103.19 59.98 04/17/2023 04:54:28 70.46, 103.21 60.00 2.73 64
2 04/17/2023 05:44:06 -70.35, -89.36 120.12 04/17/2023 05:43:58 -70.34, -89.33 120.13 1.55 8
3 04/17/2023 06:34:42 69.81, 78.78 59.31 04/17/2023 06:33:32 69.85, 77.62 59.39 44.54 70
4 04/19/2023 21:10:16 70.40,-140.99 59.02 04/19/2023 21:10:54 70.41,-140.97 59.01 0.69 38
5 04/19/2023 22:00:58 -70.31, 26.47 121.09 04/19/2023 22:00:24 -70.29, 26.49 121.11 2.75 34
6 04/22/2023 12:36:35 -71.07, 166.39 121.20 04/22/2023 12:37:44 -70.92, 168.05 121.39 62.07 69
7 04/22/2023 13:27:08 70.38, -25.18 58.08 04/22/2023 13:27:19 70.38, -25.13 58.07 2.27 11
8 04/22/2023 14:17:49 -70.24, 142.36 122.08 04/22/2023 14:16:49 -70.26, 142.34 122.06 2.72 60
9 04/25/2023 04:53:14 -70.43, -76.79 122.76 04/25/2023 04:54:16 -70.42, -76.81 122.77 1.23 62
10 04/25/2023 05:43:58 70.32, 90.69 57.13 04/25/2023 05:43:43 70.31, 90.67 57.11 1.65 15
11 04/25/2023 06:34:31 -69.75,-101.13 123.47 04/25/2023 06:33:20 -69.81,-102.40 123.38 49.10 71
12 04/27/2023 21:10:05 -70.37, 39.08 123.68 04/27/2023 21:10:40 -70.37, 39.02 123.68 2.13 35
13 04/27/2023 22:00:49 70.27,-153.46 56.21 04/27/2023 22:00:07 70.26,-153.50 56.20 2.17 42

Figure of NPP and LANDSAT-9 satellite orbits during SNOs since TLE Epoch: 4/15/2023
SNOs_Map_NPP_LANDSAT-9_20230415.jpg

Download SNOs between NPP and LANDSAT-9 since TLE EPOCH: 04/15/2023 in txt file.

Historial Predications of SNOs between NPP and LANDSAT-9