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: 10/19/2023
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 10/20/2023 22:49:54 -70.18, 13.93 99.42 10/20/2023 22:50:24 -70.16, 13.98 99.45 3.27 30
2 10/20/2023 23:40:38 70.06,-178.58 80.47 10/20/2023 23:39:51 70.05,-178.52 80.46 2.15 47
3 10/23/2023 14:16:10 70.33, -37.87 81.67 10/23/2023 14:17:22 70.29, -37.58 81.62 11.95 72
4 10/23/2023 15:06:50 -70.14, 129.75 98.52 10/23/2023 15:06:53 -70.12, 129.81 98.54 3.17 3
5 10/23/2023 15:57:33 69.97, -62.68 81.33 10/23/2023 15:56:21 69.96, -62.77 81.32 3.69 72
6 10/26/2023 06:33:03 70.15, 78.18 82.42 10/26/2023 06:33:52 70.15, 78.11 82.41 2.74 49
7 10/26/2023 07:23:45 -70.06,-114.37 97.67 10/26/2023 07:23:22 -70.04,-114.41 97.69 2.98 23
8 10/28/2023 21:59:31 -71.14, 25.02 95.70 10/28/2023 22:00:37 -71.00, 27.64 95.83 95.46 66
9 10/28/2023 22:49:58 70.14,-166.04 83.31 10/28/2023 22:50:18 70.13,-166.03 83.30 1.29 20
10 10/28/2023 23:40:40 -70.05, 1.42 96.78 10/28/2023 23:39:48 -70.02, 1.45 96.80 3.15 52
11 10/31/2023 14:16:09 -70.20, 142.32 95.77 10/31/2023 14:17:18 -70.18, 142.29 95.79 2.57 69
12 10/31/2023 15:06:53 70.09, -50.20 84.14 10/31/2023 15:06:45 70.06, -50.22 84.11 2.81 8
13 10/31/2023 15:57:30 -69.73, 117.65 96.21 10/31/2023 15:56:18 -69.80, 117.03 96.15 24.87 72

Figure of NPP and LANDSAT-9 satellite orbits during SNOs since TLE Epoch: 10/19/2023
SNOs_Map_NPP_LANDSAT-9_20231019.jpg

Download SNOs between NPP and LANDSAT-9 since TLE EPOCH: 10/19/2023 in txt file.

Historial Predications of SNOs between NPP and LANDSAT-9