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: 5/16/2023
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 05/16/2023 13:26:42 -70.42, 154.79 128.79 05/16/2023 13:27:17 -70.40, 154.85 128.81 2.67 35
2 05/16/2023 14:17:26 70.31, -37.72 51.09 05/16/2023 14:16:44 70.30, -37.65 51.09 2.76 42
3 05/19/2023 04:52:59 70.85, 102.55 51.07 05/19/2023 04:54:09 70.74, 103.60 50.94 40.48 70
4 05/19/2023 05:43:33 -70.34, -89.31 129.47 05/19/2023 05:43:44 -70.35, -89.34 129.45 2.28 11
5 05/19/2023 06:34:17 70.23, 78.17 50.42 05/19/2023 06:33:11 70.25, 78.15 50.44 2.49 66
6 05/21/2023 21:09:44 70.41,-140.98 50.06 05/21/2023 21:10:41 70.44,-140.96 50.09 3.41 57
7 05/21/2023 22:00:26 -70.31, 26.50 130.05 05/21/2023 22:00:11 -70.33, 26.51 130.03 1.91 15
8 05/21/2023 22:50:58 69.57,-165.08 49.19 05/21/2023 22:49:49 69.62,-166.85 49.27 68.69 69
9 05/24/2023 13:26:37 70.40, -25.19 49.54 05/24/2023 13:27:08 70.39, -25.15 49.52 1.68 31
10 05/24/2023 14:17:19 -70.30, 142.29 130.58 05/24/2023 14:16:38 -70.28, 142.32 130.59 2.31 41
11 05/27/2023 04:52:52 -70.81, -77.38 130.51 05/27/2023 04:54:03 -70.70, -76.45 130.64 36.18 71
12 05/27/2023 05:43:29 70.35, 90.67 49.01 05/27/2023 05:43:34 70.37, 90.70 49.03 2.91 5
13 05/27/2023 06:34:11 -70.24,-101.85 131.11 05/27/2023 06:33:04 -70.26,-101.82 131.08 2.70 67
14 05/29/2023 21:09:37 -70.45, 38.98 131.31 05/29/2023 21:10:32 -70.44, 39.04 131.33 2.56 55
15 05/29/2023 22:00:20 70.30,-153.48 48.53 05/29/2023 21:59:59 70.32,-153.48 48.56 2.74 21

Figure of NPP and LANDSAT-9 satellite orbits during SNOs since TLE Epoch: 5/16/2023
SNOs_Map_NPP_LANDSAT-9_20230516.jpg

Download SNOs between NPP and LANDSAT-9 since TLE EPOCH: 05/16/2023 in txt file.

Historial Predications of SNOs between NPP and LANDSAT-9