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: 4/8/2023
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 04/09/2023 04:53:25 -70.51, -77.13 117.02 04/09/2023 04:54:37 -70.47, -76.78 117.08 13.75 72
2 04/09/2023 05:44:07 70.28, 90.54 62.74 04/09/2023 05:44:06 70.26, 90.55 62.71 2.30 1
3 04/09/2023 06:34:48 -70.15,-101.93 117.42 04/09/2023 06:33:36 -70.15,-101.98 117.42 1.72 72
4 04/11/2023 21:10:19 -70.35, 38.90 118.18 04/11/2023 21:11:06 -70.37, 38.95 118.17 2.95 47
5 04/11/2023 22:01:03 70.23,-153.60 61.69 04/11/2023 22:00:34 70.21,-153.64 61.67 2.28 29
6 04/14/2023 12:36:45 71.07, -13.84 61.62 04/14/2023 12:37:53 70.95, -11.93 61.44 70.34 68
7 04/14/2023 13:27:14 -70.30, 154.74 119.20 04/14/2023 13:27:33 -70.29, 154.72 119.22 1.73 19
8 04/14/2023 14:17:58 70.19, -37.76 60.66 04/14/2023 14:17:00 70.18, -37.79 60.67 1.19 58
9 04/17/2023 04:53:28 70.36, 103.12 59.91 04/17/2023 04:54:30 70.34, 103.04 59.89 3.23 62
10 04/17/2023 05:44:10 -70.27, -89.42 120.20 04/17/2023 05:43:59 -70.29, -89.40 120.18 2.57 11
11 04/17/2023 06:34:44 69.62, 78.86 59.13 04/17/2023 06:33:35 69.68, 77.39 59.22 57.29 69
12 04/19/2023 21:10:24 70.33,-141.07 58.95 04/19/2023 21:10:55 70.36,-141.04 58.97 2.95 31
13 04/19/2023 22:01:06 -70.24, 26.40 121.17 04/19/2023 22:00:25 -70.25, 26.44 121.15 2.10 41

Figure of NPP and LANDSAT-9 satellite orbits during SNOs since TLE Epoch: 4/8/2023
SNOs_Map_NPP_LANDSAT-9_20230408.jpg

Download SNOs between NPP and LANDSAT-9 since TLE EPOCH: 04/08/2023 in txt file.

Historial Predications of SNOs between NPP and LANDSAT-9