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: 7/25/2023
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 07/27/2023 13:26:17 70.31, -25.15 51.12 07/27/2023 13:27:18 70.32, -25.13 51.11 0.63 61
2 07/27/2023 14:16:58 -70.18, 142.37 129.02 07/27/2023 14:16:48 -70.20, 142.33 129.00 2.34 10
3 07/27/2023 15:07:33 69.58, -49.42 50.36 07/27/2023 15:06:23 69.66, -50.77 50.51 53.44 70
4 07/30/2023 05:43:11 70.26, 90.70 51.68 07/30/2023 05:43:51 70.26, 90.66 51.68 1.69 40
5 07/30/2023 06:33:53 -70.18,-101.85 128.40 07/30/2023 06:33:21 -70.15,-101.87 128.42 3.48 32
6 08/01/2023 21:09:36 -71.11, 37.77 126.76 08/01/2023 21:10:43 -71.04, 40.07 126.93 83.19 67
7 08/01/2023 22:00:05 70.21,-153.46 52.29 08/01/2023 22:00:23 70.23,-153.51 52.31 3.00 18
8 08/01/2023 22:50:47 -70.12, 13.99 127.79 08/01/2023 22:49:53 -70.12, 13.97 127.79 1.05 54
9 08/04/2023 13:26:16 -70.33, 154.81 126.89 08/04/2023 13:27:27 -70.34, 154.88 126.91 2.68 71
10 08/04/2023 14:17:00 70.22, -37.71 53.00 08/04/2023 14:16:54 70.23, -37.63 53.01 3.18 6
11 08/04/2023 15:07:39 -69.97, 129.99 127.25 08/04/2023 15:06:26 -70.01, 129.69 127.19 12.12 73
12 08/07/2023 05:43:08 -70.24, -89.29 126.26 08/07/2023 05:43:58 -70.26, -89.36 126.25 3.02 50
13 08/07/2023 06:33:52 70.13, 78.19 53.64 08/07/2023 06:33:25 70.15, 78.13 53.66 2.93 27

Figure of NPP and LANDSAT-9 satellite orbits during SNOs since TLE Epoch: 7/25/2023
SNOs_Map_NPP_LANDSAT-9_20230726.jpg

Download SNOs between NPP and LANDSAT-9 since TLE EPOCH: 07/25/2023 in txt file.

Historial Predications of SNOs between NPP and LANDSAT-9