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: 3/15/2023
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 -70.29, -89.45 107.88 03/16/2023 05:44:20 -70.30, -89.39 107.88 2.36 40
2 03/16/2023 06:34:24 70.17, 78.06 71.98 03/16/2023 06:33:48 70.14, 78.03 71.96 2.98 36
3 03/18/2023 21:10:04 70.75,-141.73 71.55 03/18/2023 21:11:14 70.64,-140.65 71.39 41.56 70
4 03/18/2023 22:00:38 -70.24, 26.40 109.00 03/18/2023 22:00:49 -70.25, 26.42 108.99 1.64 11
5 03/18/2023 22:51:22 70.12,-166.10 70.86 03/18/2023 22:50:16 70.14,-166.09 70.90 3.16 66
6 03/21/2023 13:26:54 70.29, -25.23 70.01 03/21/2023 13:27:47 70.32, -25.24 70.02 2.78 53
7 03/21/2023 14:17:36 -70.20, 142.23 110.11 03/21/2023 14:17:17 -70.21, 142.24 110.10 0.90 19
8 03/21/2023 15:08:05 69.28, -49.10 68.93 03/21/2023 15:06:58 69.32, -51.34 69.05 87.85 67
9 03/24/2023 05:43:52 70.27, 90.57 68.92 03/24/2023 05:44:14 70.27, 90.58 68.92 0.58 22
10 03/24/2023 06:34:34 -70.18,-101.97 111.20 03/24/2023 06:33:44 -70.17,-101.94 111.20 1.56 50
11 03/26/2023 21:10:04 -70.32, 38.95 112.08 03/26/2023 21:11:12 -70.35, 38.94 112.06 3.26 68
12 03/26/2023 22:00:48 70.21,-153.56 67.79 03/26/2023 22:00:39 70.23,-153.58 67.82 3.11 9
13 03/26/2023 22:51:25 -69.85, 14.30 112.60 03/26/2023 22:50:13 -69.91, 13.59 112.50 27.91 72

Figure of NPP and LANDSAT-9 satellite orbits during SNOs since TLE Epoch: 3/15/2023
SNOs_Map_NPP_LANDSAT-9_20230315.jpg

Download SNOs between NPP and LANDSAT-9 since TLE EPOCH: 03/15/2023 in txt file.

Historial Predications of SNOs between NPP and LANDSAT-9