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: 8/9/2023
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 08/09/2023 21:09:38 71.25,-142.48 55.55 08/09/2023 21:10:43 71.13,-139.77 55.34 97.88 65
2 08/09/2023 22:00:02 -70.22, 26.51 125.52 08/09/2023 22:00:27 -70.25, 26.52 125.50 2.63 25
3 08/09/2023 22:50:46 70.10,-165.99 54.36 08/09/2023 22:49:55 70.10,-166.05 54.37 2.49 51
4 08/12/2023 13:26:15 70.34, -25.22 55.38 08/12/2023 13:27:27 70.32, -25.12 55.35 4.04 72
5 08/12/2023 14:16:56 -70.20, 142.31 124.76 08/12/2023 14:16:57 -70.21, 142.34 124.76 1.12 1
6 08/12/2023 15:07:38 69.98, -50.04 55.02 08/12/2023 15:06:26 70.00, -50.31 55.06 10.82 72
7 08/15/2023 05:43:08 70.28, 90.64 56.13 08/15/2023 05:43:57 70.25, 90.65 56.09 3.46 49
8 08/15/2023 06:33:49 -70.14,-101.82 124.01 08/15/2023 06:33:27 -70.14,-101.88 124.01 2.13 22
9 08/17/2023 22:00:00 70.23,-153.50 56.92 08/17/2023 22:00:25 70.20,-153.53 56.89 3.24 25
10 08/17/2023 22:50:42 -70.13, 13.96 123.17 08/17/2023 22:49:54 -70.14, 14.03 123.16 2.89 48
11 08/20/2023 13:26:12 -70.45, 154.61 122.00 08/20/2023 13:27:24 -70.39, 155.00 122.07 15.53 72
12 08/20/2023 14:16:53 70.18, -37.67 57.74 08/20/2023 14:16:53 70.17, -37.67 57.73 0.95 0
13 08/20/2023 15:07:35 -70.09, 129.80 122.36 08/20/2023 15:06:23 -70.07, 129.81 122.37 1.90 72

Figure of NPP and LANDSAT-9 satellite orbits during SNOs since TLE Epoch: 8/9/2023
SNOs_Map_NPP_LANDSAT-9_20230809.jpg

Download SNOs between NPP and LANDSAT-9 since TLE EPOCH: 08/09/2023 in txt file.

Historial Predications of SNOs between NPP and LANDSAT-9