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: 3/14/2023
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 03/16/2023 05:43:40 -70.26, -89.40 107.91 03/16/2023 05:44:21 -70.28, -89.42 107.90 2.46 41
2 03/16/2023 06:34:25 70.19, 78.02 72.00 03/16/2023 06:33:48 70.18, 78.07 71.99 2.47 37
3 03/18/2023 21:10:05 70.77,-141.77 71.58 03/18/2023 21:11:15 70.62,-140.68 71.38 43.58 70
4 03/18/2023 22:00:39 -70.26, 26.36 108.98 03/18/2023 22:00:50 -70.24, 26.40 109.01 2.95 11
5 03/18/2023 22:51:23 70.14,-166.14 70.89 03/18/2023 22:50:17 70.13,-166.12 70.88 1.61 66
6 03/21/2023 13:26:54 70.32, -25.27 70.03 03/21/2023 13:27:47 70.30, -25.26 70.01 1.53 53
7 03/21/2023 14:17:35 -70.17, 142.27 110.14 03/21/2023 14:17:17 -70.20, 142.22 110.11 3.32 18
8 03/21/2023 15:08:04 69.26, -49.07 68.90 03/21/2023 15:06:58 69.31, -51.35 69.04 90.19 66
9 03/24/2023 05:43:51 70.24, 90.61 68.89 03/24/2023 05:44:14 70.27, 90.57 68.91 2.82 23
10 03/24/2023 06:34:33 -70.15,-101.93 111.22 03/24/2023 06:33:44 -70.16,-101.95 111.21 1.34 49
11 03/26/2023 21:10:05 -70.35, 38.90 112.04 03/26/2023 21:11:13 -70.35, 38.94 112.06 1.51 68
12 03/26/2023 22:00:49 70.24,-153.62 67.83 03/26/2023 22:00:40 70.23,-153.59 67.82 1.26 9
13 03/26/2023 22:51:26 -69.88, 14.25 112.56 03/26/2023 22:50:14 -69.91, 13.59 112.50 25.49 72

Figure of NPP and LANDSAT-9 satellite orbits during SNOs since TLE Epoch: 3/14/2023
SNOs_Map_NPP_LANDSAT-9_20230314.jpg

Download SNOs between NPP and LANDSAT-9 since TLE EPOCH: 03/14/2023 in txt file.

Historial Predications of SNOs between NPP and LANDSAT-9