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: 8/8/2023
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 08/09/2023 21:09:37 71.21,-142.41 55.51 08/09/2023 21:10:43 71.12,-139.79 55.33 94.53 66
2 08/09/2023 22:00:02 -70.24, 26.50 125.51 08/09/2023 22:00:27 -70.24, 26.50 125.51 0.34 25
3 08/09/2023 22:50:46 70.11,-166.01 54.37 08/09/2023 22:49:54 70.14,-165.99 54.41 3.38 52
4 08/12/2023 13:26:15 70.35, -25.24 55.39 08/12/2023 13:27:27 70.32, -25.14 55.34 5.56 72
5 08/12/2023 14:16:56 -70.21, 142.30 124.75 08/12/2023 14:16:57 -70.20, 142.33 124.76 1.94 1
6 08/12/2023 15:07:38 69.99, -50.05 55.03 08/12/2023 15:06:25 70.04, -50.25 55.10 9.67 73
7 08/15/2023 05:43:07 70.24, 90.71 56.09 08/15/2023 05:43:57 70.24, 90.65 56.09 2.61 50
8 08/15/2023 06:33:49 -70.15,-101.83 124.00 08/15/2023 06:33:27 -70.13,-101.88 124.01 2.42 22
9 08/17/2023 22:00:01 70.23,-153.52 56.93 08/17/2023 22:00:25 70.25,-153.45 56.94 3.34 24
10 08/17/2023 22:50:42 -70.09, 14.03 123.22 08/17/2023 22:49:56 -70.09, 13.95 123.21 3.03 46
11 08/20/2023 13:26:12 -70.45, 154.61 122.00 08/20/2023 13:27:24 -70.40, 155.01 122.07 15.87 72
12 08/20/2023 14:16:53 70.19, -37.67 57.74 08/20/2023 14:16:53 70.18, -37.67 57.74 0.69 0
13 08/20/2023 15:07:35 -70.09, 129.79 122.35 08/20/2023 15:06:23 -70.08, 129.82 122.36 1.62 72

Figure of NPP and LANDSAT-9 satellite orbits during SNOs since TLE Epoch: 8/8/2023
SNOs_Map_NPP_LANDSAT-9_20230808.jpg

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

Historial Predications of SNOs between NPP and LANDSAT-9