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: 2/6/2023
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 02/06/2023 22:00:15 70.23,-153.60 85.74 02/06/2023 22:01:11 70.23,-153.62 85.74 0.73 56
2 02/06/2023 22:50:57 -70.13, 13.86 94.37 02/06/2023 22:50:41 -70.11, 13.85 94.39 2.30 16
3 02/06/2023 23:41:28 69.33,-177.64 84.78 02/06/2023 23:40:20 69.35,-179.56 84.89 75.07 68
4 02/09/2023 14:17:09 70.19, -37.77 84.86 02/09/2023 14:17:40 70.20, -37.79 84.87 1.57 31
5 02/09/2023 15:07:51 -70.09, 129.70 95.26 02/09/2023 15:07:10 -70.09, 129.69 95.25 0.50 41
6 02/12/2023 05:43:27 -70.63, -90.00 95.54 02/12/2023 05:44:38 -70.53, -89.07 95.69 36.15 71
7 02/12/2023 06:34:04 70.16, 78.06 83.95 02/12/2023 06:34:10 70.15, 78.02 83.94 1.68 6
8 02/12/2023 07:24:46 -70.06,-114.47 96.17 02/12/2023 07:23:40 -70.04,-114.50 96.17 2.25 66
9 02/14/2023 22:00:15 -70.24, 26.40 96.86 02/14/2023 22:01:12 -70.24, 26.38 96.87 0.86 57
10 02/14/2023 22:50:59 70.14,-166.13 83.03 02/14/2023 22:50:39 70.13,-166.13 83.02 0.49 20
11 02/14/2023 23:41:29 -69.40, 2.28 97.76 02/14/2023 23:40:20 -69.42, 0.52 97.66 68.94 69
12 02/17/2023 14:17:10 -70.22, 142.21 97.81 02/17/2023 14:17:41 -70.20, 142.20 97.83 2.36 31
13 02/17/2023 15:07:54 70.12, -50.32 82.08 02/17/2023 15:07:08 70.09, -50.32 82.05 3.59 46

Figure of NPP and LANDSAT-9 satellite orbits during SNOs since TLE Epoch: 2/6/2023
SNOs_Map_NPP_LANDSAT-9_20230206.jpg

Download SNOs between NPP and LANDSAT-9 since TLE EPOCH: 02/06/2023 in txt file.

Historial Predications of SNOs between NPP and LANDSAT-9