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: 3/18/2023
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 03/18/2023 21:10:04 70.75,-141.73 71.55 03/18/2023 21:11:14 70.64,-140.65 71.40 41.78 70
2 03/18/2023 22:00:38 -70.25, 26.39 109.00 03/18/2023 22:00:49 -70.25, 26.42 108.99 1.42 11
3 03/18/2023 22:51:22 70.12,-166.10 70.86 03/18/2023 22:50:17 70.09,-166.17 70.85 3.52 65
4 03/21/2023 13:26:54 70.29, -25.23 70.00 03/21/2023 13:27:48 70.28, -25.29 69.99 2.35 54
5 03/21/2023 14:17:36 -70.20, 142.22 110.11 03/21/2023 14:17:18 -70.18, 142.19 110.13 3.37 18
6 03/21/2023 15:08:05 69.28, -49.10 68.93 03/21/2023 15:06:58 69.35, -51.31 69.07 86.88 67
7 03/24/2023 05:43:52 70.26, 90.58 68.91 03/24/2023 05:44:15 70.27, 90.58 68.92 1.49 23
8 03/24/2023 06:34:34 -70.17,-101.96 111.20 03/24/2023 06:33:45 -70.17,-101.94 111.20 0.94 49
9 03/26/2023 21:10:05 -70.36, 38.88 112.03 03/26/2023 21:11:14 -70.34, 38.91 112.07 2.95 69
10 03/26/2023 22:00:49 70.24,-153.62 67.83 03/26/2023 22:00:41 70.22,-153.61 67.81 2.38 8
11 03/26/2023 22:51:26 -69.89, 14.24 112.56 03/26/2023 22:50:14 -69.95, 13.64 112.47 23.90 72
12 03/29/2023 13:27:02 -70.30, 154.75 113.15 03/29/2023 13:27:40 -70.30, 154.75 113.16 0.24 38
13 03/29/2023 14:17:46 70.18, -37.76 66.72 03/29/2023 14:17:07 70.18, -37.77 66.72 0.45 39

Figure of NPP and LANDSAT-9 satellite orbits during SNOs since TLE Epoch: 3/18/2023
SNOs_Map_NPP_LANDSAT-9_20230318.jpg

Download SNOs between NPP and LANDSAT-9 since TLE EPOCH: 03/18/2023 in txt file.

Historial Predications of SNOs between NPP and LANDSAT-9