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: 5/13/2023
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 05/13/2023 21:09:48 -70.42, 39.02 128.15 05/13/2023 21:10:49 -70.41, 38.98 128.17 1.90 61
2 05/13/2023 22:00:32 70.31,-153.50 51.73 05/13/2023 22:00:16 70.31,-153.52 51.73 0.94 16
3 05/13/2023 22:51:04 -69.69, 14.76 128.92 05/13/2023 22:49:54 -69.75, 13.33 128.82 55.50 70
4 05/16/2023 13:26:41 -70.38, 154.85 128.82 05/16/2023 13:27:17 -70.38, 154.81 128.83 1.38 36
5 05/16/2023 14:17:25 70.28, -37.68 51.06 05/16/2023 14:16:44 70.28, -37.69 51.06 0.61 41
6 05/19/2023 04:52:59 70.82, 102.59 51.04 05/19/2023 04:54:10 70.70, 103.54 50.90 37.22 71
7 05/19/2023 05:43:34 -70.36, -89.34 129.45 05/19/2023 05:43:44 -70.37, -89.32 129.44 1.51 10
8 05/19/2023 06:34:18 70.25, 78.13 50.44 05/19/2023 06:33:11 70.26, 78.17 50.45 1.80 67
9 05/21/2023 21:09:45 70.44,-141.02 50.09 05/21/2023 21:10:41 70.43,-140.97 50.08 1.77 56
10 05/21/2023 22:00:27 -70.34, 26.46 130.02 05/21/2023 22:00:11 -70.32, 26.50 130.04 2.21 16
11 05/21/2023 22:50:58 69.55,-165.04 49.16 05/21/2023 22:49:49 69.61,-166.86 49.26 70.78 69
12 05/24/2023 13:26:36 70.38, -25.15 49.52 05/24/2023 13:27:06 70.41, -25.13 49.54 3.09 30
13 05/24/2023 14:17:18 -70.28, 142.33 130.60 05/24/2023 14:16:36 -70.30, 142.35 130.58 2.81 42

Figure of NPP and LANDSAT-9 satellite orbits during SNOs since TLE Epoch: 5/13/2023
SNOs_Map_NPP_LANDSAT-9_20230513.jpg

Download SNOs between NPP and LANDSAT-9 since TLE EPOCH: 05/13/2023 in txt file.

Historial Predications of SNOs between NPP and LANDSAT-9