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: 5/20/2023
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 70.44,-141.02 50.09 05/21/2023 21:10:42 70.41,-141.01 50.06 3.08 57
2 05/21/2023 22:00:26 -70.29, 26.53 130.07 05/21/2023 22:00:12 -70.29, 26.45 130.07 2.90 14
3 05/21/2023 22:50:58 69.55,-165.04 49.16 05/21/2023 22:49:50 69.58,-166.89 49.24 71.92 68
4 05/24/2023 13:26:37 70.37, -25.14 49.51 05/24/2023 13:27:09 70.36, -25.20 49.49 2.60 32
5 05/24/2023 14:17:19 -70.28, 142.33 130.60 05/24/2023 14:16:38 -70.30, 142.35 130.58 2.69 41
6 05/27/2023 04:52:51 -70.78, -77.34 130.54 05/27/2023 04:54:02 -70.72, -76.43 130.63 34.14 71
7 05/27/2023 05:43:29 70.37, 90.64 49.03 05/27/2023 05:43:34 70.34, 90.65 49.00 3.13 5
8 05/27/2023 06:34:10 -70.21,-101.81 131.14 05/27/2023 06:33:04 -70.23,-101.87 131.12 2.87 66
9 05/29/2023 21:09:37 -70.41, 39.03 131.35 05/29/2023 21:10:33 -70.40, 38.99 131.36 1.83 56
10 05/29/2023 22:00:21 70.31,-153.50 48.55 05/29/2023 22:00:00 70.29,-153.52 48.53 2.55 21
11 05/29/2023 22:50:50 -69.52, 14.99 132.27 05/29/2023 22:49:41 -69.58, 13.11 132.17 73.39 69
12 06/01/2023 13:26:29 -70.36, 154.88 131.78 06/01/2023 13:26:58 -70.39, 154.86 131.76 2.82 29
13 06/01/2023 14:17:13 70.27, -37.66 48.12 06/01/2023 14:16:25 70.27, -37.66 48.13 0.80 48

Figure of NPP and LANDSAT-9 satellite orbits during SNOs since TLE Epoch: 5/20/2023
SNOs_Map_NPP_LANDSAT-9_20230520.jpg

Download SNOs between NPP and LANDSAT-9 since TLE EPOCH: 05/20/2023 in txt file.

Historial Predications of SNOs between NPP and LANDSAT-9