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: 4/14/2024
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 04/16/2024 14:16:22 70.20, -37.86 59.70 04/16/2024 14:17:02 70.18, -37.82 59.68 2.33 40
2 04/16/2024 15:07:03 -70.06, 129.67 120.46 04/16/2024 15:06:32 -70.07, 129.65 120.44 1.31 31
3 04/19/2024 05:42:43 -70.86, -90.46 120.54 04/19/2024 05:43:52 -70.71, -88.81 120.74 62.60 69
4 04/19/2024 06:33:16 70.16, 77.96 58.73 04/19/2024 06:33:27 70.16, 78.03 58.72 2.89 11
5 04/19/2024 07:23:57 -70.02,-114.51 121.43 04/19/2024 07:22:57 -70.05,-114.49 121.40 3.36 60
6 04/21/2024 21:59:26 -70.20, 26.36 122.14 04/21/2024 22:00:26 -70.22, 26.36 122.13 2.29 60
7 04/21/2024 22:50:10 70.09,-166.16 57.74 04/21/2024 22:49:53 70.10,-166.16 57.76 1.88 17
8 04/21/2024 23:40:42 -69.46, 2.08 122.92 04/21/2024 23:39:32 -69.50, 0.65 122.84 55.98 70
9 04/24/2024 14:16:21 -70.18, 142.16 123.05 04/24/2024 14:16:51 -70.19, 142.21 123.04 2.29 30
10 04/24/2024 15:07:05 70.07, -50.37 56.84 04/24/2024 15:06:18 70.07, -50.31 56.83 2.25 47
11 04/27/2024 05:42:34 70.27, 90.46 56.20 04/27/2024 05:43:45 70.28, 90.61 56.20 5.58 71
12 04/27/2024 06:33:15 -70.12,-101.98 123.97 04/27/2024 06:33:16 -70.12,-101.98 123.97 0.80 1
13 04/27/2024 07:23:57 69.91, 65.65 55.80 04/27/2024 07:22:44 69.95, 65.41 55.85 9.89 73

Figure of NPP and LANDSAT-9 satellite orbits during SNOs since TLE Epoch: 4/14/2024
SNOs_Map_NPP_LANDSAT-9_20240414.jpg

Download SNOs between NPP and LANDSAT-9 since TLE EPOCH: 04/14/2024 in txt file.

Historial Predications of SNOs between NPP and LANDSAT-9