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: 8/16/2023
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 08/17/2023 22:00:00 70.21,-153.47 56.90 08/17/2023 22:00:26 70.19,-153.55 56.88 3.39 26
2 08/17/2023 22:50:42 -70.12, 13.97 123.18 08/17/2023 22:49:55 -70.12, 13.99 123.18 0.81 47
3 08/20/2023 13:26:13 -70.48, 154.56 121.97 08/20/2023 13:27:25 -70.39, 154.99 122.08 18.93 72
4 08/20/2023 14:16:54 70.21, -37.71 57.77 08/20/2023 14:16:54 70.18, -37.67 57.74 3.31 0
5 08/20/2023 15:07:35 -70.07, 129.83 122.37 08/20/2023 15:06:24 -70.07, 129.80 122.37 0.94 71
6 08/23/2023 05:43:03 -70.28, -89.35 121.29 08/23/2023 05:43:55 -70.26, -89.32 121.32 2.57 52
7 08/23/2023 06:33:47 70.17, 78.13 58.61 08/23/2023 06:33:22 70.15, 78.18 58.60 2.56 25
8 08/23/2023 07:24:13 -69.23,-113.18 122.35 08/23/2023 07:23:06 -69.27,-115.40 122.24 87.79 67
9 08/25/2023 21:59:55 -70.18, 26.56 120.48 08/25/2023 22:00:23 -70.20, 26.50 120.46 3.18 28
10 08/25/2023 22:50:39 70.08,-165.97 59.43 08/25/2023 22:49:50 70.09,-166.01 59.45 2.38 49
11 08/28/2023 13:26:07 70.36, -25.25 60.63 08/28/2023 13:27:18 70.33, -25.05 60.59 8.20 71
12 08/28/2023 14:16:47 -70.15, 142.39 119.58 08/28/2023 14:16:49 -70.17, 142.36 119.56 2.94 2
13 08/28/2023 15:07:30 69.99, -50.07 60.28 08/28/2023 15:06:17 70.00, -50.24 60.30 6.54 73

Figure of NPP and LANDSAT-9 satellite orbits during SNOs since TLE Epoch: 8/16/2023
SNOs_Map_NPP_LANDSAT-9_20230816.jpg

Download SNOs between NPP and LANDSAT-9 since TLE EPOCH: 08/16/2023 in txt file.

Historial Predications of SNOs between NPP and LANDSAT-9