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: 3/16/2023
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 03/16/2023 05:43:40 -70.26, -89.40 107.91 03/16/2023 05:44:21 -70.28, -89.42 107.90 2.13 41
2 03/16/2023 06:34:25 70.19, 78.03 72.00 03/16/2023 06:33:48 70.17, 78.07 71.99 2.16 37
3 03/18/2023 21:10:05 70.77,-141.76 71.57 03/18/2023 21:11:15 70.61,-140.68 71.37 43.08 70
4 03/18/2023 22:00:39 -70.26, 26.37 108.98 03/18/2023 22:00:50 -70.23, 26.38 109.01 3.42 11
5 03/18/2023 22:51:23 70.14,-166.13 70.88 03/18/2023 22:50:17 70.12,-166.12 70.87 1.46 66
6 03/21/2023 13:26:54 70.31, -25.26 70.02 03/21/2023 13:27:47 70.30, -25.27 70.00 1.45 53
7 03/21/2023 14:17:36 -70.22, 142.20 110.09 03/21/2023 14:17:17 -70.19, 142.21 110.12 3.52 19
8 03/21/2023 15:08:04 69.25, -49.05 68.89 03/21/2023 15:06:58 69.30, -51.36 69.03 91.11 66
9 03/24/2023 05:43:52 70.28, 90.55 68.93 03/24/2023 05:44:14 70.26, 90.56 68.90 2.73 22
10 03/24/2023 06:34:33 -70.14,-101.91 111.24 03/24/2023 06:33:44 -70.15,-101.96 111.22 2.37 49
11 03/26/2023 21:10:05 -70.33, 38.93 112.07 03/26/2023 21:11:13 -70.34, 38.92 112.07 1.08 68
12 03/26/2023 22:00:49 70.21,-153.58 67.80 03/26/2023 22:00:40 70.22,-153.60 67.81 1.29 9
13 03/26/2023 22:51:26 -69.86, 14.28 112.59 03/26/2023 22:50:14 -69.90, 13.58 112.51 27.42 72
14 03/29/2023 13:27:03 -70.33, 154.71 113.12 03/29/2023 13:27:38 -70.32, 154.78 113.14 3.12 35
15 03/29/2023 14:17:47 70.21, -37.81 66.75 03/29/2023 14:17:05 70.20, -37.74 66.74 3.02 42

Figure of NPP and LANDSAT-9 satellite orbits during SNOs since TLE Epoch: 3/16/2023
SNOs_Map_NPP_LANDSAT-9_20230316.jpg

Download SNOs between NPP and LANDSAT-9 since TLE EPOCH: 03/16/2023 in txt file.

Historial Predications of SNOs between NPP and LANDSAT-9