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: 2/19/2023
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 02/20/2023 05:43:20 70.29, 90.57 81.33 02/20/2023 05:44:32 70.27, 90.56 81.30 2.27 72
2 02/20/2023 06:34:02 -70.20,-101.96 98.78 02/20/2023 06:34:01 -70.20,-101.89 98.78 2.86 1
3 02/20/2023 07:24:43 69.92, 65.76 80.92 02/20/2023 07:23:30 69.99, 65.45 81.01 13.99 73
4 02/22/2023 22:00:14 70.27,-153.61 80.34 02/22/2023 22:00:57 70.26,-153.56 80.32 2.21 43
5 02/22/2023 22:50:55 -70.12, 13.94 99.84 02/22/2023 22:50:27 -70.14, 13.91 99.81 2.68 28
6 02/25/2023 13:26:36 -70.99, 153.69 99.88 02/25/2023 13:27:44 -70.92, 155.68 100.04 72.76 68
7 02/25/2023 14:17:07 70.20, -37.73 79.28 02/25/2023 14:17:22 70.21, -37.73 79.28 0.78 15
8 02/25/2023 15:07:49 -70.11, 129.74 100.84 02/25/2023 15:06:52 -70.10, 129.74 100.85 1.06 57
9 02/28/2023 05:43:16 -70.30, -89.41 101.62 02/28/2023 05:44:18 -70.29, -89.36 101.65 2.67 62
10 02/28/2023 06:33:59 70.15, 78.14 78.21 02/28/2023 06:33:45 70.17, 78.12 78.24 3.23 14
11 02/28/2023 07:24:33 -69.63,-113.76 102.36 02/28/2023 07:23:22 -69.68,-114.93 102.24 45.93 71
12 03/02/2023 22:00:09 -70.26, 26.45 102.69 03/02/2023 22:00:41 -70.27, 26.52 102.68 3.38 32
13 03/02/2023 22:50:52 70.10,-166.00 77.14 03/02/2023 22:50:09 70.10,-166.08 77.15 2.85 43

Figure of NPP and LANDSAT-9 satellite orbits during SNOs since TLE Epoch: 2/19/2023
SNOs_Map_NPP_LANDSAT-9_20230219.jpg

Download SNOs between NPP and LANDSAT-9 since TLE EPOCH: 02/19/2023 in txt file.

Historial Predications of SNOs between NPP and LANDSAT-9