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: 8/15/2023
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 08/15/2023 05:43:08 70.28, 90.65 56.13 08/15/2023 05:43:57 70.27, 90.68 56.11 1.33 49
2 08/15/2023 06:33:49 -70.14,-101.82 124.01 08/15/2023 06:33:27 -70.15,-101.86 124.00 1.64 22
3 08/17/2023 22:00:00 70.22,-153.49 56.91 08/17/2023 22:00:25 70.23,-153.49 56.92 1.66 25
4 08/17/2023 22:50:42 -70.13, 13.96 123.17 08/17/2023 22:49:55 -70.11, 13.98 123.19 2.01 47
5 08/20/2023 13:26:13 -70.49, 154.54 121.96 08/20/2023 13:27:24 -70.44, 155.06 122.03 20.04 71
6 08/20/2023 14:16:53 70.17, -37.64 57.72 08/20/2023 14:16:54 70.17, -37.68 57.73 1.63 1
7 08/20/2023 15:07:35 -70.08, 129.81 122.36 08/20/2023 15:06:24 -70.06, 129.79 122.38 2.27 71
8 08/23/2023 05:43:02 -70.23, -89.28 121.34 08/23/2023 05:43:55 -70.25, -89.33 121.33 2.43 53
9 08/23/2023 06:33:46 70.12, 78.19 58.57 08/23/2023 06:33:22 70.14, 78.16 58.59 2.21 24
10 08/23/2023 07:24:13 -69.23,-113.19 122.35 08/23/2023 07:23:06 -69.26,-115.41 122.25 87.70 67
11 08/25/2023 21:59:55 -70.19, 26.55 120.47 08/25/2023 22:00:23 -70.19, 26.49 120.47 2.42 28
12 08/25/2023 22:50:39 70.09,-165.98 59.44 08/25/2023 22:49:50 70.08,-166.03 59.44 1.85 49
13 08/28/2023 13:26:07 70.37, -25.27 60.64 08/28/2023 13:27:18 70.33, -25.06 60.59 8.97 71
14 08/28/2023 14:16:47 -70.16, 142.37 119.57 08/28/2023 14:16:49 -70.17, 142.35 119.56 1.66 2
15 08/28/2023 15:07:30 70.00, -50.08 60.29 08/28/2023 15:06:17 70.00, -50.25 60.29 6.36 73

Figure of NPP and LANDSAT-9 satellite orbits during SNOs since TLE Epoch: 8/15/2023
SNOs_Map_NPP_LANDSAT-9_20230815.jpg

Download SNOs between NPP and LANDSAT-9 since TLE EPOCH: 08/15/2023 in txt file.

Historial Predications of SNOs between NPP and LANDSAT-9