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: 8/12/2023
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 08/12/2023 13:26:16 70.37, -25.27 55.41 08/12/2023 13:27:27 70.35, -25.08 55.38 7.30 71
2 08/12/2023 14:16:56 -70.19, 142.34 124.78 08/12/2023 14:16:58 -70.18, 142.29 124.79 2.03 2
3 08/12/2023 15:07:39 70.01, -50.08 55.05 08/12/2023 15:06:26 70.03, -50.27 55.09 7.48 73
4 08/15/2023 05:43:07 70.26, 90.68 56.11 08/15/2023 05:43:57 70.24, 90.63 56.08 2.79 50
5 08/15/2023 06:33:49 -70.17,-101.87 123.98 08/15/2023 06:33:26 -70.17,-101.82 123.97 1.74 23
6 08/17/2023 22:00:00 70.20,-153.46 56.89 08/17/2023 22:00:26 70.21,-153.52 56.89 2.76 26
7 08/17/2023 22:50:42 -70.11, 14.00 123.20 08/17/2023 22:49:56 -70.09, 13.95 123.21 2.33 46
8 08/20/2023 13:26:14 -70.51, 154.50 121.93 08/20/2023 13:27:25 -70.42, 155.04 122.05 22.35 71
9 08/20/2023 14:16:54 70.20, -37.69 57.75 08/20/2023 14:16:54 70.21, -37.63 57.76 2.56 0
10 08/20/2023 15:07:36 -70.10, 129.77 122.34 08/20/2023 15:06:24 -70.10, 129.85 122.34 2.75 72
11 08/23/2023 05:43:03 -70.25, -89.32 121.31 08/23/2023 05:43:56 -70.24, -89.34 121.33 1.50 53
12 08/23/2023 06:33:47 70.15, 78.15 58.59 08/23/2023 06:33:23 70.13, 78.15 58.58 1.98 24
13 08/23/2023 07:24:14 -69.26,-113.22 122.32 08/23/2023 07:23:06 -69.31,-115.35 122.20 83.82 68
14 08/25/2023 21:59:55 -70.21, 26.52 120.45 08/25/2023 22:00:23 -70.20, 26.50 120.46 1.37 28
15 08/25/2023 22:50:39 70.11,-166.02 59.46 08/25/2023 22:49:50 70.09,-166.02 59.44 2.56 49

Figure of NPP and LANDSAT-9 satellite orbits during SNOs since TLE Epoch: 8/12/2023
SNOs_Map_NPP_LANDSAT-9_20230812.jpg

Download SNOs between NPP and LANDSAT-9 since TLE EPOCH: 08/12/2023 in txt file.

Historial Predications of SNOs between NPP and LANDSAT-9