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: 5/23/2023
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 05/24/2023 13:26:37 70.39, -25.17 49.52 05/24/2023 13:27:08 70.39, -25.15 49.53 0.87 31
2 05/24/2023 14:17:19 -70.29, 142.30 130.58 05/24/2023 14:16:38 -70.27, 142.31 130.60 2.32 41
3 05/27/2023 04:52:52 -70.80, -77.37 130.52 05/27/2023 04:54:03 -70.68, -76.48 130.66 35.40 71
4 05/27/2023 05:43:29 70.33, 90.70 48.99 05/27/2023 05:43:34 70.36, 90.69 49.02 3.53 5
5 05/27/2023 06:34:11 -70.23,-101.84 131.11 05/27/2023 06:33:04 -70.25,-101.84 131.10 1.32 67
6 05/29/2023 21:09:37 -70.44, 38.99 131.32 05/29/2023 21:10:32 -70.41, 39.01 131.36 3.02 55
7 05/29/2023 22:00:20 70.28,-153.46 48.52 05/29/2023 21:59:59 70.30,-153.51 48.54 2.98 21
8 05/29/2023 22:50:49 -69.50, 15.04 132.30 05/29/2023 22:49:41 -69.53, 13.05 132.22 77.31 68
9 06/01/2023 13:26:29 -70.39, 154.83 131.75 06/01/2023 13:26:57 -70.38, 154.85 131.77 1.62 28
10 06/01/2023 14:17:13 70.29, -37.70 48.15 06/01/2023 14:16:24 70.27, -37.66 48.12 3.09 49
11 06/04/2023 04:52:40 70.51, 103.10 48.05 06/04/2023 04:53:51 70.48, 103.27 48.00 7.06 71
12 06/04/2023 05:43:21 -70.36, -89.34 132.12 06/04/2023 05:43:21 -70.38, -89.26 132.11 3.52 0
13 06/04/2023 06:34:02 70.10, 78.37 47.61 06/04/2023 06:32:50 70.15, 78.06 47.67 12.88 72

Figure of NPP and LANDSAT-9 satellite orbits during SNOs since TLE Epoch: 5/23/2023
SNOs_Map_NPP_LANDSAT-9_20230523.jpg

Download SNOs between NPP and LANDSAT-9 since TLE EPOCH: 05/23/2023 in txt file.

Historial Predications of SNOs between NPP and LANDSAT-9