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: 4/12/2023
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 04/14/2023 12:36:45 71.06, -13.82 61.60 04/14/2023 12:37:53 70.97, -11.90 61.45 69.97 68
2 04/14/2023 13:27:14 -70.30, 154.76 119.21 04/14/2023 13:27:33 -70.30, 154.73 119.21 1.08 19
3 04/14/2023 14:17:58 70.17, -37.74 60.65 04/14/2023 14:17:00 70.20, -37.77 60.68 3.18 58
4 04/17/2023 04:53:28 70.35, 103.13 59.90 04/17/2023 04:54:30 70.37, 103.08 59.91 2.82 62
5 04/17/2023 05:44:10 -70.26, -89.41 120.21 04/17/2023 05:44:00 -70.25, -89.46 120.22 1.89 10
6 04/17/2023 06:34:45 69.66, 78.80 59.17 04/17/2023 06:33:35 69.70, 77.42 59.25 53.43 70
7 04/19/2023 21:10:24 70.33,-141.06 58.94 04/19/2023 21:10:56 70.34,-141.08 58.94 1.41 32
8 04/19/2023 22:01:06 -70.23, 26.40 121.17 04/19/2023 22:00:26 -70.22, 26.39 121.18 1.19 40
9 04/22/2023 12:36:40 -70.63, 166.92 121.65 04/22/2023 12:37:52 -70.55, 167.48 121.75 22.65 72
10 04/22/2023 13:27:19 70.31, -25.26 58.01 04/22/2023 13:27:20 70.33, -25.20 58.03 3.01 1
11 04/22/2023 14:18:01 -70.22, 142.21 122.10 04/22/2023 14:16:50 -70.22, 142.28 122.10 2.71 71
12 04/25/2023 04:53:30 -70.36, -76.87 122.82 04/25/2023 04:54:19 -70.35, -76.92 122.83 1.99 49
13 04/25/2023 05:44:14 70.26, 90.61 57.06 04/25/2023 05:43:46 70.24, 90.56 57.05 2.49 28

Figure of NPP and LANDSAT-9 satellite orbits during SNOs since TLE Epoch: 4/12/2023
SNOs_Map_NPP_LANDSAT-9_20230412.jpg

Download SNOs between NPP and LANDSAT-9 since TLE EPOCH: 04/12/2023 in txt file.

Historial Predications of SNOs between NPP and LANDSAT-9