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: 4/10/2023
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 04/11/2023 21:10:18 -70.33, 38.93 118.20 04/11/2023 21:11:06 -70.34, 38.90 118.20 1.60 48
2 04/11/2023 22:01:03 70.26,-153.65 61.71 04/11/2023 22:00:33 70.24,-153.60 61.70 2.67 30
3 04/14/2023 12:36:45 71.05, -13.79 61.59 04/14/2023 12:37:53 70.98, -11.89 61.46 69.38 68
4 04/14/2023 13:27:15 -70.33, 154.70 119.17 04/14/2023 13:27:33 -70.32, 154.75 119.20 3.00 18
5 04/14/2023 14:17:59 70.21, -37.81 60.69 04/14/2023 14:17:00 70.21, -37.76 60.69 1.91 59
6 04/17/2023 04:53:29 70.39, 103.07 59.94 04/17/2023 04:54:30 70.37, 103.08 59.91 2.05 61
7 04/17/2023 05:44:10 -70.24, -89.39 120.22 04/17/2023 05:44:00 -70.26, -89.45 120.21 2.59 10
8 04/17/2023 06:34:45 69.65, 78.82 59.16 04/17/2023 06:33:35 69.71, 77.43 59.25 54.26 70
9 04/19/2023 21:10:24 70.31,-141.03 58.92 04/19/2023 21:10:56 70.33,-141.09 58.94 3.04 32
10 04/19/2023 22:01:05 -70.22, 26.43 121.19 04/19/2023 22:00:25 -70.22, 26.39 121.18 1.64 40
11 04/22/2023 12:36:39 -70.61, 166.95 121.67 04/22/2023 12:37:51 -70.53, 167.46 121.77 20.77 72
12 04/22/2023 13:27:19 70.29, -25.23 57.99 04/22/2023 13:27:20 70.31, -25.22 58.01 2.01 1
13 04/22/2023 14:18:01 -70.20, 142.24 122.12 04/22/2023 14:16:50 -70.20, 142.26 122.11 1.13 71

Figure of NPP and LANDSAT-9 satellite orbits during SNOs since TLE Epoch: 4/10/2023
SNOs_Map_NPP_LANDSAT-9_20230411.jpg

Download SNOs between NPP and LANDSAT-9 since TLE EPOCH: 04/10/2023 in txt file.

Historial Predications of SNOs between NPP and LANDSAT-9