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: 9/17/2023
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 09/18/2023 21:59:37 70.24,-153.51 68.45 09/18/2023 22:00:44 70.27,-153.48 68.47 3.37 67
2 09/18/2023 22:50:19 -70.14, 13.96 111.64 09/18/2023 22:50:14 -70.15, 13.99 111.63 1.78 5
3 09/18/2023 23:40:57 69.72,-178.09 67.95 09/18/2023 23:39:46 69.77,-178.89 68.02 31.41 71
4 09/21/2023 14:16:29 70.22, -37.71 69.47 09/21/2023 14:17:13 70.23, -37.64 69.48 2.83 44
5 09/21/2023 15:07:11 -70.12, 129.76 110.62 09/21/2023 15:06:43 -70.12, 129.84 110.62 2.88 28
6 09/24/2023 05:42:54 -71.20, -90.84 108.50 09/24/2023 05:44:00 -71.09, -88.09 108.64 99.55 66
7 09/24/2023 06:33:20 70.17, 78.16 70.45 09/24/2023 06:33:42 70.17, 78.16 70.45 0.32 22
8 09/24/2023 07:24:02 -70.06,-114.37 109.64 09/24/2023 07:23:12 -70.06,-114.36 109.64 0.34 50
9 09/26/2023 21:59:29 -70.37, 26.31 108.32 09/26/2023 22:00:41 -70.29, 26.58 108.40 13.27 72
10 09/26/2023 22:50:10 70.12,-165.99 71.44 09/26/2023 22:50:09 70.13,-166.01 71.45 1.49 1
11 09/26/2023 23:40:52 -70.01, 1.49 108.65 09/26/2023 23:39:39 -70.02, 1.47 108.64 1.32 73
12 09/29/2023 14:16:18 -70.22, 142.32 107.43 09/29/2023 14:17:09 -70.22, 142.38 107.43 2.05 51
13 09/29/2023 15:07:01 70.07, -50.14 72.44 09/29/2023 15:06:36 70.11, -50.15 72.47 3.49 25

Figure of NPP and LANDSAT-9 satellite orbits during SNOs since TLE Epoch: 9/17/2023
SNOs_Map_NPP_LANDSAT-9_20230917.jpg

Download SNOs between NPP and LANDSAT-9 since TLE EPOCH: 09/17/2023 in txt file.

Historial Predications of SNOs between NPP and LANDSAT-9