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: 10/22/2023
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 10/23/2023 14:16:10 70.35, -37.89 81.68 10/23/2023 14:17:22 70.29, -37.58 81.62 13.08 72
2 10/23/2023 15:06:49 -70.10, 129.81 98.55 10/23/2023 15:06:53 -70.12, 129.81 98.54 1.82 4
3 10/23/2023 15:57:33 69.98, -62.70 81.34 10/23/2023 15:56:21 69.96, -62.77 81.32 3.44 72
4 10/26/2023 06:33:03 70.15, 78.17 82.42 10/26/2023 06:33:52 70.17, 78.14 82.44 2.53 49
5 10/26/2023 07:23:45 -70.07,-114.38 97.66 10/26/2023 07:23:22 -70.06,-114.39 97.67 0.60 23
6 10/28/2023 21:59:32 -71.14, 25.03 95.70 10/28/2023 22:00:38 -71.06, 27.72 95.78 97.20 66
7 10/28/2023 22:49:59 70.13,-166.03 83.30 10/28/2023 22:50:20 70.13,-166.03 83.30 0.36 21
8 10/28/2023 23:40:41 -70.04, 1.42 96.78 10/28/2023 23:39:50 -70.02, 1.45 96.80 2.30 51
9 10/31/2023 14:16:10 -70.18, 142.34 95.79 10/31/2023 14:17:21 -70.17, 142.27 95.80 3.13 71
10 10/31/2023 15:06:54 70.07, -50.17 84.11 10/31/2023 15:06:48 70.06, -50.24 84.10 2.94 6
11 10/31/2023 15:57:33 -69.82, 117.52 96.13 10/31/2023 15:56:20 -69.84, 117.08 96.11 16.91 73
12 11/03/2023 06:33:05 -70.18,-101.89 94.94 11/03/2023 06:33:46 -70.17,-101.84 94.95 2.29 41
13 11/03/2023 07:23:49 70.06, 65.59 84.97 11/03/2023 07:23:13 70.05, 65.65 84.95 2.27 36

Figure of NPP and LANDSAT-9 satellite orbits during SNOs since TLE Epoch: 10/22/2023
SNOs_Map_NPP_LANDSAT-9_20231022.jpg

Download SNOs between NPP and LANDSAT-9 since TLE EPOCH: 10/22/2023 in txt file.

Historial Predications of SNOs between NPP and LANDSAT-9