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: 8/19/2023
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 08/20/2023 13:26:16 -70.65, 154.28 121.79 08/20/2023 13:27:27 -70.50, 155.14 121.97 35.67 71
2 08/20/2023 14:16:53 70.17, -37.64 57.72 08/20/2023 14:16:58 70.19, -37.68 57.74 2.84 5
3 08/20/2023 15:07:35 -70.08, 129.81 122.36 08/20/2023 15:06:28 -70.08, 129.79 122.36 0.78 67
4 08/23/2023 05:43:03 -70.29, -89.37 121.28 08/23/2023 05:44:03 -70.28, -89.32 121.30 2.25 60
5 08/23/2023 06:33:47 70.17, 78.11 58.62 08/23/2023 06:33:30 70.18, 78.18 58.62 2.36 17
6 08/23/2023 07:24:19 -69.56,-113.65 122.01 08/23/2023 07:23:09 -69.57,-115.03 121.95 53.91 70
7 08/25/2023 21:59:56 -70.25, 26.47 120.41 08/25/2023 22:00:35 -70.24, 26.50 120.42 1.45 39
8 08/25/2023 22:50:40 70.14,-166.06 59.49 08/25/2023 22:50:02 70.13,-166.01 59.49 1.92 38
9 08/28/2023 13:26:19 70.94, -26.20 61.24 08/28/2023 13:27:27 70.83, -24.38 61.07 67.36 68
10 08/28/2023 14:16:49 -70.21, 142.29 119.52 08/28/2023 14:17:06 -70.23, 142.36 119.50 3.54 17
11 08/28/2023 15:07:32 70.05, -50.16 60.34 08/28/2023 15:06:34 70.07, -50.23 60.36 3.04 58
12 08/31/2023 05:42:59 70.28, 90.63 61.50 08/31/2023 05:44:06 70.30, 90.71 61.51 3.12 67
13 08/31/2023 06:33:40 -70.13,-101.81 118.65 08/31/2023 06:33:37 -70.14,-101.89 118.64 3.17 3
14 08/31/2023 07:24:19 69.76, 66.05 60.99 08/31/2023 07:23:07 69.86, 65.37 61.11 28.46 72

Figure of NPP and LANDSAT-9 satellite orbits during SNOs since TLE Epoch: 8/19/2023
SNOs_Map_NPP_LANDSAT-9_20230819.jpg

Download SNOs between NPP and LANDSAT-9 since TLE EPOCH: 08/19/2023 in txt file.

Historial Predications of SNOs between NPP and LANDSAT-9