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: 4/21/2023
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 04/22/2023 13:27:08 70.40, -25.21 58.10 04/22/2023 13:27:30 70.40, -25.14 58.10 2.78 22
2 04/22/2023 14:17:49 -70.26, 142.32 122.06 04/22/2023 14:17:00 -70.29, 142.33 122.03 2.85 49
3 04/25/2023 04:53:18 -70.61, -77.08 122.57 04/25/2023 04:54:30 -70.54, -76.70 122.65 15.96 72
4 04/25/2023 05:43:59 70.34, 90.66 57.15 04/25/2023 05:43:59 70.33, 90.63 57.14 1.50 0
5 04/25/2023 06:34:41 -70.25,-101.89 122.96 04/25/2023 06:33:28 -70.27,-101.81 122.94 3.52 73
6 04/27/2023 21:10:06 -70.45, 38.95 123.59 04/27/2023 21:10:58 -70.43, 39.02 123.62 3.46 52
7 04/27/2023 22:00:49 70.29,-153.49 56.23 04/27/2023 22:00:26 70.27,-153.57 56.22 3.67 23
8 04/27/2023 22:51:16 -69.41, 15.14 124.69 04/27/2023 22:50:09 -69.45, 12.92 124.60 86.93 67
9 04/30/2023 13:26:57 -70.41, 154.79 124.47 04/30/2023 13:27:25 -70.40, 154.85 124.49 2.78 28
10 04/30/2023 14:17:40 70.25, -37.66 55.36 04/30/2023 14:16:52 70.28, -37.66 55.39 3.38 48
11 05/03/2023 04:53:09 70.64, 102.89 54.97 05/03/2023 04:54:19 70.59, 103.39 54.90 19.28 70
12 05/03/2023 05:43:47 -70.33, -89.30 125.37 05/03/2023 05:43:52 -70.32, -89.37 125.38 3.02 5
13 05/03/2023 06:34:31 70.23, 78.17 54.52 05/03/2023 06:33:19 70.20, 78.11 54.51 3.47 72

Figure of NPP and LANDSAT-9 satellite orbits during SNOs since TLE Epoch: 4/21/2023
SNOs_Map_NPP_LANDSAT-9_20230421.jpg

Download SNOs between NPP and LANDSAT-9 since TLE EPOCH: 04/21/2023 in txt file.

Historial Predications of SNOs between NPP and LANDSAT-9