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: 2/23/2023
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 02/25/2023 13:26:36 -71.03, 153.62 99.84 02/25/2023 13:27:43 -70.94, 155.71 100.02 76.44 67
2 02/25/2023 14:17:06 70.18, -37.70 79.26 02/25/2023 14:17:22 70.18, -37.78 79.25 2.92 16
3 02/25/2023 15:07:48 -70.09, 129.76 100.86 02/25/2023 15:06:51 -70.12, 129.77 100.83 2.61 57
4 02/28/2023 05:43:16 -70.29, -89.39 101.63 02/28/2023 05:44:19 -70.27, -89.39 101.67 2.62 63
5 02/28/2023 06:34:00 70.18, 78.09 78.25 02/28/2023 06:33:46 70.16, 78.10 78.22 2.66 14
6 02/28/2023 07:24:33 -69.61,-113.74 102.37 02/28/2023 07:23:23 -69.66,-114.96 102.26 47.78 70
7 03/02/2023 22:00:09 -70.24, 26.47 102.70 03/02/2023 22:00:43 -70.22, 26.44 102.73 2.82 34
8 03/02/2023 22:50:53 70.14,-166.05 77.17 03/02/2023 22:50:10 70.11,-166.08 77.15 3.35 43
9 03/05/2023 13:26:23 70.46, -25.40 76.51 03/05/2023 13:27:34 70.41, -25.01 76.43 15.45 71
10 03/05/2023 14:17:02 -70.20, 142.32 103.78 03/05/2023 14:17:06 -70.19, 142.30 103.79 1.23 4
11 03/05/2023 15:07:46 70.10, -50.21 76.10 03/05/2023 15:06:33 70.08, -50.22 76.09 2.36 73
12 03/08/2023 05:43:12 70.27, 90.68 75.26 03/08/2023 05:43:57 70.29, 90.72 75.28 3.00 45
13 03/08/2023 06:33:54 -70.17,-101.85 104.86 03/08/2023 06:33:27 -70.19,-101.80 104.84 2.56 27

Figure of NPP and LANDSAT-9 satellite orbits during SNOs since TLE Epoch: 2/23/2023
SNOs_Map_NPP_LANDSAT-9_20230223.jpg

Download SNOs between NPP and LANDSAT-9 since TLE EPOCH: 02/23/2023 in txt file.

Historial Predications of SNOs between NPP and LANDSAT-9