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: 6/19/2023
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 06/20/2023 05:43:03 -70.35, -89.29 133.14 06/20/2023 05:43:30 -70.34, -89.22 133.15 2.46 27
2 06/20/2023 06:33:47 70.23, 78.20 46.75 06/20/2023 06:32:57 70.24, 78.27 46.76 2.95 50
3 06/22/2023 21:09:16 70.60,-141.23 47.13 06/22/2023 21:10:28 70.51,-140.72 47.02 21.10 72
4 06/22/2023 21:59:54 -70.30, 26.56 133.18 06/22/2023 22:00:00 -70.29, 26.59 133.19 1.21 6
5 06/22/2023 22:50:38 70.19,-165.96 46.70 06/22/2023 22:49:27 70.19,-165.92 46.71 1.29 71
6 06/25/2023 13:26:03 70.35, -25.06 46.92 06/25/2023 13:26:59 70.38, -25.03 46.94 3.22 56
7 06/25/2023 14:16:45 -70.26, 142.40 133.17 06/25/2023 14:16:29 -70.27, 142.45 133.16 2.23 16
8 06/25/2023 15:07:16 69.46, -49.09 46.00 06/25/2023 15:06:08 69.50, -50.99 46.11 73.98 68
9 06/28/2023 05:42:53 70.32, 90.77 46.99 06/28/2023 05:43:27 70.33, 90.79 47.00 1.42 34
10 06/28/2023 06:33:35 -70.22,-101.76 133.11 06/28/2023 06:32:57 -70.23,-101.73 133.10 1.32 38
11 06/30/2023 21:09:11 -70.97, 38.19 132.18 06/30/2023 21:10:20 -70.86, 39.83 132.35 61.00 69
12 06/30/2023 21:59:44 70.29,-153.40 47.11 06/30/2023 21:59:55 70.31,-153.35 47.13 3.10 11
13 06/30/2023 22:50:25 -70.14, 14.14 133.04 06/30/2023 22:49:26 -70.16, 14.06 133.02 3.46 59

Figure of NPP and LANDSAT-9 satellite orbits during SNOs since TLE Epoch: 6/19/2023
SNOs_Map_NPP_LANDSAT-9_20230619.jpg

Download SNOs between NPP and LANDSAT-9 since TLE EPOCH: 06/19/2023 in txt file.

Historial Predications of SNOs between NPP and LANDSAT-9