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: 5/12/2023
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 05/13/2023 21:09:49 -70.44, 38.98 128.13 05/13/2023 21:10:49 -70.44, 39.02 128.14 1.48 60
2 05/13/2023 22:00:33 70.33,-153.53 51.75 05/13/2023 22:00:16 70.34,-153.48 51.76 2.20 17
3 05/13/2023 22:51:05 -69.71, 14.72 128.89 05/13/2023 22:49:55 -69.73, 13.30 128.85 55.08 70
4 05/16/2023 13:26:42 -70.41, 154.81 128.80 05/16/2023 13:27:17 -70.41, 154.85 128.81 1.64 35
5 05/16/2023 14:17:26 70.30, -37.71 51.09 05/16/2023 14:16:44 70.30, -37.65 51.09 2.29 42
6 05/19/2023 04:52:59 70.85, 102.55 51.07 05/19/2023 04:54:09 70.72, 103.57 50.92 39.96 70
7 05/19/2023 05:43:33 -70.33, -89.30 129.48 05/19/2023 05:43:44 -70.34, -89.36 129.47 2.72 11
8 05/19/2023 06:34:17 70.22, 78.17 50.41 05/19/2023 06:33:11 70.23, 78.13 50.42 1.89 66
9 05/21/2023 21:09:44 70.41,-140.98 50.07 05/21/2023 21:10:41 70.40,-141.02 50.04 2.57 57
10 05/21/2023 22:00:26 -70.31, 26.50 130.05 05/21/2023 22:00:11 -70.29, 26.45 130.07 3.04 15
11 05/21/2023 22:50:57 69.52,-165.01 49.14 05/21/2023 22:49:49 69.57,-166.91 49.23 74.00 68
12 05/24/2023 13:26:36 70.36, -25.12 49.49 05/24/2023 13:27:07 70.37, -25.18 49.50 2.57 31
13 05/24/2023 14:17:18 -70.25, 142.36 130.62 05/24/2023 14:16:37 -70.26, 142.30 130.61 2.61 41

Figure of NPP and LANDSAT-9 satellite orbits during SNOs since TLE Epoch: 5/12/2023
SNOs_Map_NPP_LANDSAT-9_20230512.jpg

Download SNOs between NPP and LANDSAT-9 since TLE EPOCH: 05/12/2023 in txt file.

Historial Predications of SNOs between NPP and LANDSAT-9