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: 1/19/2023
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 01/19/2023 05:43:16 70.41, 90.32 90.80 01/19/2023 05:44:28 70.33, 90.72 90.70 16.97 72
2 01/19/2023 06:33:55 -70.16,-101.97 89.47 01/19/2023 06:33:59 -70.16,-101.89 89.47 2.88 4
3 01/19/2023 07:24:38 69.99, 65.60 90.35 01/19/2023 07:23:27 70.00, 65.52 90.37 3.25 71
4 01/21/2023 22:00:08 70.21,-153.59 90.02 01/21/2023 22:00:54 70.22,-153.55 90.02 1.84 46
5 01/21/2023 22:50:50 -70.11, 13.87 90.09 01/21/2023 22:50:24 -70.10, 13.92 90.10 2.13 26
6 01/24/2023 13:26:33 -70.97, 153.64 89.80 01/24/2023 13:27:41 -70.88, 155.69 89.97 74.99 68
7 01/24/2023 14:17:04 70.18, -37.77 89.37 01/24/2023 14:17:19 70.17, -37.72 89.35 2.30 15
8 01/24/2023 15:07:45 -70.03, 129.77 90.80 01/24/2023 15:06:49 -70.06, 129.75 90.77 3.12 56
9 01/27/2023 05:43:15 -70.22, -89.37 91.25 01/27/2023 05:44:16 -70.24, -89.36 91.24 2.59 61
10 01/27/2023 06:33:59 70.11, 78.11 88.63 01/27/2023 06:33:43 70.12, 78.12 88.65 1.68 16
11 01/27/2023 07:24:31 -69.48,-113.64 92.04 01/27/2023 07:23:21 -69.58,-115.01 91.88 54.39 70
12 01/29/2023 22:00:11 -70.21, 26.42 91.96 01/29/2023 22:00:39 -70.21, 26.50 91.97 2.92 28
13 01/29/2023 22:50:54 70.05,-166.03 87.87 01/29/2023 22:50:07 70.04,-166.10 87.86 3.30 47
14 02/01/2023 13:26:23 70.21, -25.13 87.32 02/01/2023 13:27:32 70.24, -25.18 87.33 3.28 69
15 02/01/2023 14:17:04 -70.11, 142.35 92.81 02/01/2023 14:17:01 -70.13, 142.30 92.78 3.28 3
16 02/01/2023 15:07:43 69.74, -49.79 86.80 02/01/2023 15:06:31 69.85, -50.46 86.94 28.17 72

Figure of NPP and LANDSAT-9 satellite orbits during SNOs since TLE Epoch: 1/19/2023
SNOs_Map_NPP_LANDSAT-9_20230119.jpg

Download SNOs between NPP and LANDSAT-9 since TLE EPOCH: 01/19/2023 in txt file.

Historial Predications of SNOs between NPP and LANDSAT-9