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: 9/3/2023
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 09/05/2023 14:16:44 70.21, -37.71 63.37 09/05/2023 14:17:07 70.19, -37.69 63.35 2.08 23
2 09/05/2023 15:07:25 -70.06, 129.84 116.77 09/05/2023 15:06:37 -70.08, 129.79 116.75 2.65 48
3 09/08/2023 05:42:56 -70.47, -89.65 115.38 09/08/2023 05:44:07 -70.38, -89.17 115.48 20.34 71
4 09/08/2023 06:33:36 70.15, 78.15 64.31 09/08/2023 06:33:36 70.17, 78.16 64.32 1.61 0
5 09/08/2023 07:24:18 -70.06,-114.38 115.78 09/08/2023 07:23:06 -70.06,-114.36 115.77 1.09 72
6 09/10/2023 21:59:43 -70.21, 26.53 114.64 09/10/2023 22:00:37 -70.22, 26.49 114.63 2.39 54
7 09/10/2023 22:50:27 70.11,-166.00 65.27 09/10/2023 22:50:04 70.11,-166.03 65.27 1.03 23
8 09/10/2023 23:40:55 -69.27, 2.55 115.58 09/10/2023 23:39:47 -69.29, 0.48 115.52 81.40 68
9 09/13/2023 14:16:36 -70.22, 142.29 113.62 09/13/2023 14:17:05 -70.19, 142.33 113.65 3.19 29
10 09/13/2023 15:07:19 70.07, -50.17 66.25 09/13/2023 15:06:32 70.08, -50.19 66.26 1.22 47
11 09/16/2023 05:42:49 70.45, 90.39 67.63 09/16/2023 05:44:00 70.39, 90.88 67.56 19.43 71
12 09/16/2023 06:33:27 -70.13,-101.80 112.68 09/16/2023 06:33:33 -70.13,-101.87 112.69 2.68 6
13 09/16/2023 07:24:11 70.03, 65.66 67.24 09/16/2023 07:22:59 70.06, 65.69 67.27 3.32 72

Figure of NPP and LANDSAT-9 satellite orbits during SNOs since TLE Epoch: 9/3/2023
SNOs_Map_NPP_LANDSAT-9_20230903.jpg

Download SNOs between NPP and LANDSAT-9 since TLE EPOCH: 09/03/2023 in txt file.

Historial Predications of SNOs between NPP and LANDSAT-9