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: 5/21/2023
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 05/21/2023 21:09:45 70.43,-141.00 50.08 05/21/2023 21:10:42 70.42,-141.00 50.07 0.92 57
2 05/21/2023 22:00:26 -70.28, 26.54 130.08 05/21/2023 22:00:12 -70.30, 26.46 130.06 3.52 14
3 05/21/2023 22:50:58 69.54,-165.03 49.15 05/21/2023 22:49:50 69.59,-166.88 49.25 72.20 68
4 05/24/2023 13:26:36 70.36, -25.13 49.50 05/24/2023 13:27:08 70.36, -25.19 49.50 2.36 32
5 05/24/2023 14:17:18 -70.27, 142.34 130.61 05/24/2023 14:16:38 -70.25, 142.27 130.63 3.29 40
6 05/27/2023 04:52:51 -70.78, -77.33 130.54 05/27/2023 04:54:02 -70.72, -76.43 130.63 33.90 71
7 05/27/2023 05:43:29 70.36, 90.65 49.03 05/27/2023 05:43:34 70.34, 90.66 49.00 2.71 5
8 05/27/2023 06:34:10 -70.21,-101.80 131.14 05/27/2023 06:33:04 -70.22,-101.87 131.12 3.13 66
9 05/29/2023 21:09:37 -70.41, 39.03 131.34 05/29/2023 21:10:33 -70.39, 38.98 131.37 2.93 56
10 05/29/2023 22:00:21 70.31,-153.51 48.55 05/29/2023 21:59:59 70.34,-153.46 48.57 3.24 22
11 05/29/2023 22:50:49 -69.47, 15.07 132.32 05/29/2023 22:49:41 -69.57, 13.10 132.18 77.21 68
12 06/01/2023 13:26:29 -70.37, 154.87 131.77 06/01/2023 13:26:58 -70.37, 154.84 131.78 1.09 29
13 06/01/2023 14:17:13 70.27, -37.67 48.13 06/01/2023 14:16:25 70.26, -37.68 48.11 2.10 48

Figure of NPP and LANDSAT-9 satellite orbits during SNOs since TLE Epoch: 5/21/2023
SNOs_Map_NPP_LANDSAT-9_20230521.jpg

Download SNOs between NPP and LANDSAT-9 since TLE EPOCH: 05/21/2023 in txt file.

Historial Predications of SNOs between NPP and LANDSAT-9