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: 7/28/2023
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 07/30/2023 05:43:11 70.27, 90.69 51.69 07/30/2023 05:43:50 70.29, 90.71 51.71 3.17 39
2 07/30/2023 06:33:53 -70.19,-101.87 128.39 07/30/2023 06:33:20 -70.18,-101.82 128.40 1.93 33
3 08/01/2023 21:09:36 -71.12, 37.76 126.76 08/01/2023 21:10:43 -71.01, 40.02 126.96 82.65 67
4 08/01/2023 22:00:05 70.21,-153.46 52.30 08/01/2023 22:00:23 70.20,-153.54 52.29 3.20 18
5 08/01/2023 22:50:47 -70.13, 13.98 127.78 08/01/2023 22:49:52 -70.14, 14.01 127.76 1.79 55
6 08/04/2023 13:26:15 -70.29, 154.88 126.94 08/04/2023 13:27:27 -70.30, 154.83 126.94 2.46 72
7 08/04/2023 14:17:00 70.22, -37.71 53.00 08/04/2023 14:16:54 70.20, -37.67 52.97 3.01 6
8 08/04/2023 15:07:38 -69.92, 130.06 127.31 08/04/2023 15:06:26 -69.98, 129.64 127.23 16.98 72
9 08/07/2023 05:43:10 -70.29, -89.37 126.21 08/07/2023 05:43:58 -70.27, -89.34 126.24 3.16 48
10 08/07/2023 06:33:54 70.18, 78.12 53.69 08/07/2023 06:33:25 70.16, 78.16 53.67 2.50 29
11 08/09/2023 21:09:38 71.24,-142.47 55.55 08/09/2023 21:10:43 71.14,-139.77 55.34 97.76 65
12 08/09/2023 22:00:02 -70.20, 26.54 125.54 08/09/2023 22:00:28 -70.21, 26.46 125.54 3.00 26
13 08/09/2023 22:50:46 70.09,-165.98 54.35 08/09/2023 22:49:55 70.10,-166.05 54.37 2.63 51

Figure of NPP and LANDSAT-9 satellite orbits during SNOs since TLE Epoch: 7/28/2023
SNOs_Map_NPP_LANDSAT-9_20230728.jpg

Download SNOs between NPP and LANDSAT-9 since TLE EPOCH: 07/28/2023 in txt file.

Historial Predications of SNOs between NPP and LANDSAT-9