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: 1/12/2023
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 01/13/2023 22:00:02 -70.21, 26.41 88.41 01/13/2023 22:01:06 -70.21, 26.40 88.42 0.30 64
2 01/13/2023 22:50:46 70.09,-166.10 91.47 01/13/2023 22:50:33 70.10,-166.10 91.48 1.27 13
3 01/13/2023 23:41:20 -69.58, 1.99 89.08 01/13/2023 23:40:09 -69.66, 0.92 88.95 42.48 71
4 01/16/2023 14:16:59 -70.19, 142.21 88.91 01/16/2023 14:17:33 -70.21, 142.28 88.90 3.32 34
5 01/16/2023 15:07:43 70.08, -50.31 90.97 01/16/2023 15:07:00 70.10, -50.23 90.99 3.65 43
6 01/19/2023 05:43:16 70.43, 90.28 90.83 01/19/2023 05:44:28 70.33, 90.72 90.70 20.07 72
7 01/19/2023 06:33:54 -70.13,-101.92 89.51 01/19/2023 06:34:00 -70.12,-101.96 89.52 1.78 6
8 01/19/2023 07:24:38 70.02, 65.56 90.38 01/19/2023 07:23:27 70.00, 65.53 90.37 1.92 71
9 01/21/2023 22:00:09 70.22,-153.62 90.04 01/21/2023 22:00:56 70.21,-153.57 90.01 2.73 47
10 01/21/2023 22:50:51 -70.12, 13.86 90.09 01/21/2023 22:50:26 -70.10, 13.92 90.10 3.17 25
11 01/24/2023 13:26:36 -71.07, 153.47 89.69 01/24/2023 13:27:43 -70.93, 155.77 89.92 84.39 67
12 01/24/2023 14:17:05 70.18, -37.78 89.37 01/24/2023 14:17:22 70.16, -37.74 89.34 2.68 17
13 01/24/2023 15:07:47 -70.08, 129.70 90.75 01/24/2023 15:06:52 -70.06, 129.75 90.77 2.68 55

Figure of NPP and LANDSAT-9 satellite orbits during SNOs since TLE Epoch: 1/12/2023
SNOs_Map_NPP_LANDSAT-9_20230112.jpg

Download SNOs between NPP and LANDSAT-9 since TLE EPOCH: 01/12/2023 in txt file.

Historial Predications of SNOs between NPP and LANDSAT-9