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: 6/25/2023
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 06/25/2023 13:26:10 70.36, -25.10 46.94 06/25/2023 13:26:59 70.34, -25.09 46.90 2.53 49
2 06/25/2023 14:16:51 -70.22, 142.43 133.21 06/25/2023 14:16:29 -70.22, 142.38 133.21 2.02 22
3 06/28/2023 05:43:06 70.33, 90.70 47.01 06/28/2023 05:43:27 70.32, 90.78 46.99 3.01 21
4 06/28/2023 06:33:47 -70.19,-101.76 133.14 06/28/2023 06:32:57 -70.21,-101.75 133.12 2.47 50
5 06/30/2023 21:09:16 -70.37, 39.09 132.80 06/30/2023 21:10:27 -70.39, 39.12 132.80 1.88 71
6 06/30/2023 22:00:00 70.26,-153.42 47.08 06/30/2023 21:59:54 70.28,-153.39 47.10 2.42 6
7 06/30/2023 22:50:39 -70.01, 14.27 133.18 06/30/2023 22:49:26 -70.06, 13.93 133.11 14.31 73
8 07/03/2023 13:26:11 -70.30, 154.95 132.68 07/03/2023 13:26:55 -70.31, 154.91 132.68 1.86 44
9 07/03/2023 14:16:55 70.19, -37.56 47.21 07/03/2023 14:16:22 70.20, -37.61 47.22 2.16 33
10 07/06/2023 04:52:35 70.91, 102.41 48.21 07/06/2023 04:53:44 70.80, 103.90 48.03 55.92 69
11 07/06/2023 05:43:06 -70.24, -89.19 132.50 07/06/2023 05:43:22 -70.26, -89.27 132.48 3.40 16
12 07/06/2023 06:33:51 70.18, 78.21 47.45 07/06/2023 06:32:48 70.20, 78.29 47.46 3.30 63
13 07/08/2023 21:09:20 70.34,-140.90 47.89 07/08/2023 21:10:18 70.33,-140.90 47.88 0.79 58
14 07/08/2023 22:00:02 -70.24, 26.57 132.21 07/08/2023 21:59:48 -70.23, 26.59 132.22 1.54 14
15 07/08/2023 22:50:34 69.49,-165.01 47.02 07/08/2023 22:49:25 69.56,-166.70 47.15 66.43 69

Figure of NPP and LANDSAT-9 satellite orbits during SNOs since TLE Epoch: 6/25/2023
SNOs_Map_NPP_LANDSAT-9_20230625.jpg

Download SNOs between NPP and LANDSAT-9 since TLE EPOCH: 06/25/2023 in txt file.

Historial Predications of SNOs between NPP and LANDSAT-9