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: 4/25/2023
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 04/25/2023 05:43:58 70.34, 90.66 57.14 04/25/2023 05:43:58 70.33, 90.64 57.14 1.03 0
2 04/25/2023 06:34:40 -70.25,-101.89 122.96 04/25/2023 06:33:27 -70.27,-101.82 122.94 3.33 73
3 04/27/2023 21:10:05 -70.40, 39.03 123.64 04/27/2023 21:10:58 -70.43, 39.02 123.62 3.15 53
4 04/27/2023 22:00:50 70.34,-153.57 56.29 04/27/2023 22:00:25 70.33,-153.49 56.27 3.54 25
5 04/27/2023 22:51:16 -69.41, 15.14 124.68 04/27/2023 22:50:09 -69.44, 12.92 124.60 86.95 67
6 04/30/2023 13:26:56 -70.37, 154.86 124.52 04/30/2023 13:27:25 -70.39, 154.84 124.50 2.94 29
7 04/30/2023 14:17:40 70.26, -37.66 55.36 04/30/2023 14:16:52 70.28, -37.67 55.39 2.99 48
8 05/03/2023 04:53:08 70.59, 102.96 54.92 05/03/2023 04:54:20 70.53, 103.30 54.85 14.35 72
9 05/03/2023 05:43:47 -70.34, -89.32 125.35 05/03/2023 05:43:51 -70.37, -89.31 125.33 2.98 4
10 05/03/2023 06:34:31 70.23, 78.15 54.53 05/03/2023 06:33:18 70.25, 78.18 54.56 2.42 73
11 05/05/2023 21:09:55 70.42,-140.99 53.97 05/05/2023 21:10:46 70.41,-140.99 53.95 1.73 51
12 05/05/2023 22:00:37 -70.32, 26.48 126.14 05/05/2023 22:00:16 -70.30, 26.49 126.17 2.62 21
13 05/05/2023 22:51:04 69.32,-164.72 52.83 05/05/2023 22:49:58 69.36,-167.17 52.91 96.22 66
14 05/08/2023 13:26:45 70.37, -25.13 53.18 05/08/2023 13:27:11 70.36, -25.17 53.16 2.19 26
15 05/08/2023 14:17:27 -70.27, 142.35 126.94 05/08/2023 14:16:41 -70.25, 142.31 126.96 2.41 46

Figure of NPP and LANDSAT-9 satellite orbits during SNOs since TLE Epoch: 4/25/2023
SNOs_Map_NPP_LANDSAT-9_20230425.jpg

Download SNOs between NPP and LANDSAT-9 since TLE EPOCH: 04/25/2023 in txt file.

Historial Predications of SNOs between NPP and LANDSAT-9