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: 5/22/2023
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 13:26:36 70.37, -25.14 49.51 05/24/2023 13:27:08 70.35, -25.21 49.49 3.21 32
2 05/24/2023 14:17:18 -70.28, 142.33 130.60 05/24/2023 14:16:37 -70.29, 142.33 130.59 1.66 41
3 05/27/2023 04:52:51 -70.79, -77.34 130.53 05/27/2023 04:54:02 -70.69, -76.46 130.65 33.96 71
4 05/27/2023 05:43:29 70.37, 90.64 49.03 05/27/2023 05:43:33 70.37, 90.70 49.03 2.48 4
5 05/27/2023 06:34:11 -70.27,-101.89 131.08 05/27/2023 06:33:03 -70.26,-101.83 131.09 2.97 68
6 05/29/2023 21:09:37 -70.42, 39.01 131.34 05/29/2023 21:10:32 -70.41, 39.01 131.36 1.49 55
7 05/29/2023 22:00:21 70.32,-153.52 48.56 05/29/2023 21:59:59 70.30,-153.51 48.54 2.35 22
8 05/29/2023 22:50:49 -69.48, 15.06 132.31 05/29/2023 22:49:41 -69.53, 13.05 132.22 78.21 68
9 06/01/2023 13:26:29 -70.38, 154.85 131.76 06/01/2023 13:26:57 -70.37, 154.84 131.78 1.77 28
10 06/01/2023 14:17:13 70.28, -37.68 48.14 06/01/2023 14:16:24 70.25, -37.68 48.11 3.28 49
11 06/04/2023 04:52:39 70.51, 103.11 48.04 06/04/2023 04:53:49 70.51, 103.31 48.03 7.40 70
12 06/04/2023 05:43:20 -70.35, -89.33 132.13 06/04/2023 05:43:20 -70.35, -89.30 132.13 1.16 0
13 06/04/2023 06:34:01 70.10, 78.38 47.61 06/04/2023 06:32:49 70.12, 78.02 47.64 13.71 72

Figure of NPP and LANDSAT-9 satellite orbits during SNOs since TLE Epoch: 5/22/2023
SNOs_Map_NPP_LANDSAT-9_20230522.jpg

Download SNOs between NPP and LANDSAT-9 since TLE EPOCH: 05/22/2023 in txt file.

Historial Predications of SNOs between NPP and LANDSAT-9