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: 5/17/2023
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 05/19/2023 04:52:59 70.83, 102.59 51.05 05/19/2023 04:54:10 70.71, 103.56 50.91 37.72 71
2 05/19/2023 05:43:34 -70.36, -89.35 129.44 05/19/2023 05:43:44 -70.38, -89.31 129.43 2.09 10
3 05/19/2023 06:34:18 70.26, 78.12 50.44 05/19/2023 06:33:11 70.27, 78.19 50.47 3.22 67
4 05/21/2023 21:09:45 70.44,-141.02 50.09 05/21/2023 21:10:42 70.42,-141.00 50.06 2.15 57
5 05/21/2023 22:00:26 -70.29, 26.54 130.08 05/21/2023 22:00:12 -70.30, 26.47 130.06 3.19 14
6 05/21/2023 22:50:58 69.54,-165.04 49.16 05/21/2023 22:49:50 69.59,-166.88 49.25 71.66 68
7 05/24/2023 13:26:37 70.37, -25.14 49.51 05/24/2023 13:27:09 70.38, -25.18 49.51 1.65 32
8 05/24/2023 14:17:19 -70.27, 142.34 130.61 05/24/2023 14:16:39 -70.27, 142.30 130.61 1.55 40
9 05/27/2023 04:52:52 -70.83, -77.41 130.49 05/27/2023 04:54:03 -70.69, -76.46 130.65 37.63 71
10 05/27/2023 05:43:29 70.36, 90.65 49.03 05/27/2023 05:43:34 70.37, 90.69 49.03 1.77 5
11 05/27/2023 06:34:11 -70.26,-101.88 131.09 05/27/2023 06:33:04 -70.26,-101.83 131.09 1.71 67
12 05/29/2023 21:09:37 -70.40, 39.05 131.36 05/29/2023 21:10:34 -70.39, 38.97 131.37 2.93 57
13 05/29/2023 22:00:21 70.31,-153.49 48.54 05/29/2023 22:00:00 70.33,-153.47 48.57 3.04 21

Figure of NPP and LANDSAT-9 satellite orbits during SNOs since TLE Epoch: 5/17/2023
SNOs_Map_NPP_LANDSAT-9_20230517.jpg

Download SNOs between NPP and LANDSAT-9 since TLE EPOCH: 05/17/2023 in txt file.

Historial Predications of SNOs between NPP and LANDSAT-9