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: 8/7/2023
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 08/07/2023 05:43:09 -70.28, -89.33 126.23 08/07/2023 05:43:57 -70.29, -89.30 126.22 2.01 48
2 08/07/2023 06:33:53 70.15, 78.17 53.66 08/07/2023 06:33:25 70.14, 78.13 53.65 1.63 28
3 08/09/2023 21:09:38 71.22,-142.43 55.52 08/09/2023 21:10:44 71.11,-139.81 55.32 94.90 66
4 08/09/2023 22:00:03 -70.25, 26.48 125.50 08/09/2023 22:00:28 -70.23, 26.49 125.52 1.90 25
5 08/09/2023 22:50:47 70.12,-166.03 54.39 08/09/2023 22:49:55 70.13,-166.01 54.40 1.11 52
6 08/12/2023 13:26:15 70.36, -25.25 55.40 08/12/2023 13:27:26 70.36, -25.07 55.39 6.86 71
7 08/12/2023 14:16:55 -70.17, 142.36 124.79 08/12/2023 14:16:57 -70.19, 142.32 124.77 3.10 2
8 08/12/2023 15:07:38 70.00, -50.07 55.04 08/12/2023 15:06:25 70.04, -50.26 55.10 8.40 73
9 08/15/2023 05:43:07 70.24, 90.70 56.09 08/15/2023 05:43:57 70.24, 90.64 56.08 2.34 50
10 08/15/2023 06:33:49 -70.15,-101.84 123.99 08/15/2023 06:33:27 -70.13,-101.89 124.02 3.19 22
11 08/17/2023 22:00:01 70.24,-153.53 56.93 08/17/2023 22:00:25 70.25,-153.45 56.94 3.13 24
12 08/17/2023 22:50:42 -70.09, 14.02 123.22 08/17/2023 22:49:56 -70.09, 13.95 123.21 2.73 46
13 08/20/2023 13:26:14 -70.50, 154.52 121.94 08/20/2023 13:27:25 -70.41, 155.02 122.06 21.32 71
14 08/20/2023 14:16:54 70.19, -37.68 57.75 08/20/2023 14:16:54 70.18, -37.66 57.74 0.81 0
15 08/20/2023 15:07:36 -70.09, 129.79 122.35 08/20/2023 15:06:24 -70.08, 129.82 122.35 1.59 72

Figure of NPP and LANDSAT-9 satellite orbits during SNOs since TLE Epoch: 8/7/2023
SNOs_Map_NPP_LANDSAT-9_20230807.jpg

Download SNOs between NPP and LANDSAT-9 since TLE EPOCH: 08/07/2023 in txt file.

Historial Predications of SNOs between NPP and LANDSAT-9