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: 4/22/2023
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 04/22/2023 13:27:07 70.37, -25.17 58.07 04/22/2023 13:27:30 70.38, -25.17 58.07 0.70 23
2 04/22/2023 14:17:49 -70.29, 142.28 122.03 04/22/2023 14:17:00 -70.26, 142.29 122.06 3.07 49
3 04/25/2023 04:53:18 -70.64, -77.12 122.54 04/25/2023 04:54:29 -70.57, -76.65 122.62 18.65 71
4 04/25/2023 05:43:59 70.37, 90.62 57.17 04/25/2023 05:43:58 70.36, 90.68 57.17 2.39 1
5 04/25/2023 06:34:40 -70.23,-101.85 122.99 04/25/2023 06:33:28 -70.25,-101.85 122.96 2.38 72
6 04/27/2023 21:10:06 -70.43, 38.99 123.62 04/27/2023 21:10:59 -70.41, 38.99 123.64 1.46 53
7 04/27/2023 22:00:50 70.32,-153.53 56.26 04/27/2023 22:00:26 70.31,-153.52 56.25 1.29 24
8 04/27/2023 22:51:17 -69.43, 15.11 124.66 04/27/2023 22:50:09 -69.48, 12.97 124.57 83.64 68
9 04/30/2023 13:26:57 -70.38, 154.83 124.50 04/30/2023 13:27:26 -70.38, 154.83 124.51 0.54 29
10 04/30/2023 14:17:41 70.28, -37.70 55.39 04/30/2023 14:16:53 70.27, -37.69 55.38 1.13 48
11 05/03/2023 04:53:08 70.61, 102.93 54.94 05/03/2023 04:54:20 70.53, 103.30 54.84 16.43 72
12 05/03/2023 05:43:47 -70.35, -89.34 125.34 05/03/2023 05:43:51 -70.36, -89.31 125.33 1.68 4
13 05/03/2023 06:34:31 70.25, 78.12 54.55 05/03/2023 06:33:18 70.25, 78.17 54.55 1.82 73
14 05/05/2023 21:09:56 70.44,-141.01 53.99 05/05/2023 21:10:47 70.42,-140.98 53.96 2.57 51
15 05/05/2023 22:00:38 -70.33, 26.47 126.14 05/05/2023 22:00:17 -70.31, 26.50 126.16 2.83 21

Figure of NPP and LANDSAT-9 satellite orbits during SNOs since TLE Epoch: 4/22/2023
SNOs_Map_NPP_LANDSAT-9_20230422.jpg

Download SNOs between NPP and LANDSAT-9 since TLE EPOCH: 04/22/2023 in txt file.

Historial Predications of SNOs between NPP and LANDSAT-9