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: 3/9/2023
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 03/10/2023 21:09:59 -71.15, 37.62 104.85 03/10/2023 21:11:06 -71.04, 40.00 105.05 86.62 67
2 03/10/2023 22:00:28 70.25,-153.59 74.18 03/10/2023 22:00:46 70.23,-153.58 74.17 1.53 18
3 03/10/2023 22:51:09 -70.11, 13.95 105.98 03/10/2023 22:50:16 -70.12, 13.89 105.96 2.41 53
4 03/13/2023 13:26:41 -70.30, 154.78 106.81 03/13/2023 13:27:42 -70.33, 154.81 106.79 3.16 61
5 03/13/2023 14:17:25 70.18, -37.72 73.05 03/13/2023 14:17:10 70.16, -37.78 73.04 2.84 15
6 03/13/2023 15:07:57 -69.56, 130.52 107.61 03/13/2023 15:06:47 -69.67, 129.16 107.45 53.99 70
7 03/16/2023 05:43:39 -70.25, -89.38 107.92 03/16/2023 05:44:06 -70.26, -89.39 107.92 0.30 27
8 03/16/2023 06:34:23 70.14, 78.11 71.95 03/16/2023 06:33:33 70.14, 78.09 71.96 1.01 50
9 03/18/2023 21:09:55 70.32,-141.04 71.11 03/18/2023 21:10:58 70.35,-140.99 71.11 3.16 63
10 03/18/2023 22:00:37 -70.23, 26.42 109.01 03/18/2023 22:00:28 -70.24, 26.49 109.01 2.56 9
11 03/18/2023 22:51:13 69.69,-165.45 70.42 03/18/2023 22:50:02 69.73,-166.57 70.50 43.51 71
12 03/21/2023 13:26:52 70.27, -25.19 69.99 03/21/2023 13:27:20 70.26, -25.20 69.97 1.00 28
13 03/21/2023 14:17:34 -70.18, 142.27 110.13 03/21/2023 14:16:50 -70.15, 142.28 110.15 2.43 44

Figure of NPP and LANDSAT-9 satellite orbits during SNOs since TLE Epoch: 3/9/2023
SNOs_Map_NPP_LANDSAT-9_20230309.jpg

Download SNOs between NPP and LANDSAT-9 since TLE EPOCH: 03/09/2023 in txt file.

Historial Predications of SNOs between NPP and LANDSAT-9