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: 4/17/2023
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 04/17/2023 04:53:24 70.43, 103.20 59.98 04/17/2023 04:54:32 70.45, 103.18 59.99 2.44 68
2 04/17/2023 05:44:06 -70.35, -89.36 120.12 04/17/2023 05:44:02 -70.33, -89.35 120.14 1.42 4
3 04/17/2023 06:34:45 69.96, 78.54 59.47 04/17/2023 06:33:33 70.02, 77.84 59.55 27.56 72
4 04/19/2023 21:10:16 70.40,-140.98 59.01 04/19/2023 21:11:02 70.40,-141.02 59.01 1.30 46
5 04/19/2023 22:00:58 -70.32, 26.47 121.09 04/19/2023 22:00:32 -70.29, 26.45 121.12 3.26 26
6 04/22/2023 13:27:07 70.38, -25.18 58.08 04/22/2023 13:27:30 70.36, -25.20 58.05 2.68 23
7 04/22/2023 14:17:49 -70.29, 142.27 122.03 04/22/2023 14:16:59 -70.30, 142.35 122.02 3.18 50
8 04/25/2023 04:53:17 -70.59, -77.04 122.59 04/25/2023 04:54:29 -70.55, -76.68 122.64 13.91 72
9 04/25/2023 05:43:58 70.32, 90.69 57.13 04/25/2023 05:43:58 70.33, 90.64 57.14 1.95 0
10 04/25/2023 06:34:40 -70.23,-101.85 122.98 04/25/2023 06:33:28 -70.22,-101.88 122.98 1.31 72
11 04/27/2023 21:10:06 -70.43, 38.98 123.62 04/27/2023 21:10:58 -70.43, 39.02 123.62 1.33 52
12 04/27/2023 22:00:50 70.33,-153.55 56.27 04/27/2023 22:00:25 70.32,-153.50 56.26 2.13 25
13 04/27/2023 22:51:16 -69.39, 15.18 124.71 04/27/2023 22:50:09 -69.44, 12.92 124.61 88.56 67
14 04/30/2023 13:26:57 -70.39, 154.83 124.49 04/30/2023 13:27:25 -70.37, 154.82 124.52 1.81 28
15 04/30/2023 14:17:40 70.24, -37.63 55.34 04/30/2023 14:16:52 70.26, -37.70 55.37 3.49 48

Figure of NPP and LANDSAT-9 satellite orbits during SNOs since TLE Epoch: 4/17/2023
SNOs_Map_NPP_LANDSAT-9_20230417.jpg

Download SNOs between NPP and LANDSAT-9 since TLE EPOCH: 04/17/2023 in txt file.

Historial Predications of SNOs between NPP and LANDSAT-9