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: 6/18/2023
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 -70.32, -89.25 133.17 06/20/2023 05:43:31 -70.32, -89.26 133.17 0.57 28
2 06/20/2023 06:33:47 70.21, 78.24 46.72 06/20/2023 06:32:58 70.21, 78.23 46.73 0.71 49
3 06/22/2023 21:09:16 70.63,-141.28 47.16 06/22/2023 21:10:27 70.54,-140.68 47.05 24.05 71
4 06/22/2023 21:59:53 -70.27, 26.60 133.21 06/22/2023 22:00:00 -70.27, 26.55 133.22 1.87 7
5 06/22/2023 22:50:37 70.16,-165.92 46.68 06/22/2023 22:49:27 70.16,-165.96 46.68 1.53 70
6 06/25/2023 13:26:03 70.38, -25.10 46.96 06/25/2023 13:26:59 70.35, -25.07 46.92 3.10 56
7 06/25/2023 14:16:44 -70.23, 142.44 133.20 06/25/2023 14:16:29 -70.25, 142.42 133.18 2.04 15
8 06/25/2023 15:07:15 69.44, -49.06 45.98 06/25/2023 15:06:07 69.53, -50.95 46.14 74.16 68
9 06/28/2023 05:42:53 70.30, 90.81 46.97 06/28/2023 05:43:28 70.31, 90.76 46.98 2.37 35
10 06/28/2023 06:33:35 -70.20,-101.73 133.13 06/28/2023 06:32:58 -70.21,-101.76 133.12 1.23 37
11 06/30/2023 21:09:12 -71.00, 38.13 132.14 06/30/2023 21:10:20 -70.90, 39.90 132.31 64.96 68
12 06/30/2023 21:59:44 70.27,-153.38 47.10 06/30/2023 21:59:56 70.29,-153.37 47.11 2.51 12
13 06/30/2023 22:50:26 -70.18, 14.09 133.01 06/30/2023 22:49:26 -70.20, 14.12 132.98 2.53 60

Figure of NPP and LANDSAT-9 satellite orbits during SNOs since TLE Epoch: 6/18/2023
SNOs_Map_NPP_LANDSAT-9_20230618.jpg

Download SNOs between NPP and LANDSAT-9 since TLE EPOCH: 06/18/2023 in txt file.

Historial Predications of SNOs between NPP and LANDSAT-9