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: 7/15/2023
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 07/16/2023 21:09:32 -70.91, 38.16 130.36 07/16/2023 21:10:41 -70.80, 39.70 130.54 57.46 69
2 07/16/2023 22:00:06 70.26,-153.49 48.96 07/16/2023 22:00:16 70.27,-153.45 48.97 1.91 10
3 07/16/2023 22:50:47 -70.13, 14.03 131.18 07/16/2023 22:49:46 -70.15, 14.01 131.14 2.98 61
4 07/19/2023 13:26:15 -70.30, 154.90 130.54 07/19/2023 13:27:18 -70.31, 154.85 130.54 2.58 63
5 07/19/2023 14:17:00 70.23, -37.68 49.39 07/19/2023 14:16:45 70.21, -37.65 49.38 2.12 15
6 07/19/2023 15:07:33 -69.67, 130.48 131.19 07/19/2023 15:06:22 -69.71, 129.28 131.09 46.52 71
7 07/22/2023 05:43:10 -70.27, -89.29 130.06 07/22/2023 05:43:47 -70.28, -89.31 130.06 1.72 37
8 07/22/2023 06:33:54 70.15, 78.21 49.82 07/22/2023 06:33:14 70.18, 78.19 49.85 3.38 40
9 07/24/2023 21:09:31 70.75,-141.62 51.00 07/24/2023 21:10:41 70.61,-140.56 50.80 41.97 70
10 07/24/2023 22:00:05 -70.25, 26.51 129.54 07/24/2023 22:00:16 -70.23, 26.50 129.56 1.98 11
11 07/24/2023 22:50:49 70.13,-166.00 50.35 07/24/2023 22:49:43 70.12,-166.01 50.35 1.02 66
12 07/27/2023 13:26:18 70.32, -25.16 51.12 07/27/2023 13:27:14 70.31, -25.12 51.10 2.08 56
13 07/27/2023 14:16:59 -70.18, 142.38 129.02 07/27/2023 14:16:44 -70.20, 142.36 129.00 2.89 15
14 07/27/2023 15:07:31 69.42, -49.20 50.20 07/27/2023 15:06:22 69.48, -51.00 50.34 70.57 69

Figure of NPP and LANDSAT-9 satellite orbits during SNOs since TLE Epoch: 7/15/2023
SNOs_Map_NPP_LANDSAT-9_20230715.jpg

Download SNOs between NPP and LANDSAT-9 since TLE EPOCH: 07/15/2023 in txt file.

Historial Predications of SNOs between NPP and LANDSAT-9