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: 3/24/2023
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 03/24/2023 05:43:51 70.25, 90.60 68.90 03/24/2023 05:44:14 70.26, 90.56 68.91 2.30 23
2 03/24/2023 06:34:33 -70.17,-101.96 111.21 03/24/2023 06:33:44 -70.15,-101.97 111.22 2.18 49
3 03/26/2023 21:10:04 -70.34, 38.92 112.06 03/26/2023 21:11:11 -70.36, 38.96 112.04 3.24 67
4 03/26/2023 22:00:48 70.21,-153.57 67.80 03/26/2023 22:00:39 70.20,-153.63 67.79 2.57 9
5 03/26/2023 22:51:24 -69.81, 14.35 112.63 03/26/2023 22:50:12 -69.92, 13.61 112.49 30.99 72
6 03/29/2023 13:27:00 -70.28, 154.79 113.17 03/29/2023 13:27:34 -70.30, 154.78 113.15 2.91 34
7 03/29/2023 14:17:45 70.21, -37.80 66.75 03/29/2023 14:17:01 70.19, -37.74 66.73 2.86 44
8 04/01/2023 04:53:14 70.34, 103.15 65.86 04/01/2023 04:54:25 70.36, 103.13 65.87 2.06 71
9 04/01/2023 05:43:56 -70.25, -89.39 114.25 04/01/2023 05:43:55 -70.24, -89.40 114.26 0.83 1
10 04/01/2023 06:34:37 69.97, 78.34 65.46 04/01/2023 06:33:24 70.02, 77.92 65.52 16.63 73
11 04/03/2023 21:10:08 70.29,-141.00 64.78 04/03/2023 21:10:43 70.29,-141.04 64.78 1.47 35
12 04/03/2023 22:00:50 -70.20, 26.46 115.33 04/03/2023 22:00:13 -70.18, 26.43 115.35 2.44 37
13 04/06/2023 12:36:20 -70.44, 167.24 116.08 04/06/2023 12:37:32 -70.41, 167.41 116.13 7.51 72
14 04/06/2023 13:27:03 70.28, -25.20 63.74 04/06/2023 13:26:59 70.29, -25.12 63.75 3.01 4
15 04/06/2023 14:17:43 -70.08, 142.43 116.48 04/06/2023 14:16:30 -70.12, 142.27 116.43 7.31 73

Figure of NPP and LANDSAT-9 satellite orbits during SNOs since TLE Epoch: 3/24/2023
SNOs_Map_NPP_LANDSAT-9_20230324.jpg

Download SNOs between NPP and LANDSAT-9 since TLE EPOCH: 03/24/2023 in txt file.

Historial Predications of SNOs between NPP and LANDSAT-9