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: 10/1/2023
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 10/02/2023 06:33:08 -70.20,-101.87 106.41 10/02/2023 06:33:44 -70.19,-101.83 106.43 2.75 36
2 10/02/2023 07:23:52 70.10, 65.60 73.50 10/02/2023 07:23:11 70.08, 65.67 73.49 3.18 41
3 10/04/2023 21:59:28 70.87,-154.47 75.29 10/04/2023 22:00:36 70.81,-152.66 75.22 66.19 68
4 10/04/2023 22:49:58 -70.14, 14.01 105.44 10/04/2023 22:50:16 -70.15, 14.00 105.43 1.41 18
5 10/04/2023 23:40:42 70.04,-178.52 74.48 10/04/2023 23:39:43 70.05,-178.51 74.48 1.21 59
6 10/07/2023 14:16:07 70.24, -37.68 75.68 10/07/2023 14:17:17 70.24, -37.63 75.68 1.81 70
7 10/07/2023 15:06:49 -70.14, 129.79 104.41 10/07/2023 15:06:47 -70.14, 129.86 104.41 2.37 2
8 10/07/2023 15:57:29 69.83, -62.42 75.29 10/07/2023 15:56:17 69.86, -62.89 75.33 18.25 72
9 10/10/2023 06:32:57 70.20, 78.17 76.66 10/10/2023 06:33:48 70.19, 78.17 76.65 0.96 51
10 10/10/2023 07:23:39 -70.10,-114.36 103.43 10/10/2023 07:23:18 -70.09,-114.34 103.45 1.32 21
11 10/10/2023 08:14:06 69.09, 54.41 75.58 10/10/2023 08:13:00 69.15, 52.03 75.63 94.73 66
12 10/12/2023 22:49:46 70.17,-166.00 77.64 10/12/2023 22:50:17 70.15,-166.00 77.62 1.50 31
13 10/12/2023 23:40:28 -70.07, 1.47 102.46 10/12/2023 23:39:47 -70.05, 1.50 102.47 1.50 41

Figure of NPP and LANDSAT-9 satellite orbits during SNOs since TLE Epoch: 10/1/2023
SNOs_Map_NPP_LANDSAT-9_20231001.jpg

Download SNOs between NPP and LANDSAT-9 since TLE EPOCH: 10/01/2023 in txt file.

Historial Predications of SNOs between NPP and LANDSAT-9