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: 4/4/2023
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 04/06/2023 13:27:10 70.29, -25.24 63.75 04/06/2023 13:27:38 70.28, -25.30 63.74 2.26 28
2 04/06/2023 14:17:52 -70.21, 142.20 116.35 04/06/2023 14:17:07 -70.22, 142.25 116.33 2.49 45
3 04/09/2023 04:53:25 -70.51, -77.13 117.02 04/09/2023 04:54:37 -70.47, -76.79 117.08 13.29 72
4 04/09/2023 05:44:07 70.28, 90.54 62.74 04/09/2023 05:44:06 70.25, 90.54 62.70 3.27 1
5 04/09/2023 06:34:48 -70.14,-101.93 117.43 04/09/2023 06:33:36 -70.14,-101.98 117.42 2.15 72
6 04/11/2023 21:10:19 -70.35, 38.90 118.18 04/11/2023 21:11:06 -70.35, 38.92 118.19 0.83 47
7 04/11/2023 22:01:03 70.23,-153.61 61.69 04/11/2023 22:00:33 70.24,-153.60 61.70 0.76 30
8 04/14/2023 12:36:44 71.03, -13.76 61.57 04/14/2023 12:37:52 70.95, -11.92 61.44 67.15 68
9 04/14/2023 13:27:14 -70.31, 154.74 119.20 04/14/2023 13:27:32 -70.30, 154.73 119.22 1.62 18
10 04/14/2023 14:17:58 70.20, -37.78 60.67 04/14/2023 14:16:59 70.18, -37.79 60.67 1.61 59
11 04/17/2023 04:53:28 70.38, 103.09 59.93 04/17/2023 04:54:28 70.36, 103.08 59.91 1.82 60
12 04/17/2023 05:44:10 -70.28, -89.44 120.19 04/17/2023 05:43:58 -70.26, -89.44 120.21 2.69 12
13 04/17/2023 06:34:43 69.59, 78.92 59.09 04/17/2023 06:33:34 69.64, 77.35 59.19 61.12 69

Figure of NPP and LANDSAT-9 satellite orbits during SNOs since TLE Epoch: 4/4/2023
SNOs_Map_NPP_LANDSAT-9_20230404.jpg

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

Historial Predications of SNOs between NPP and LANDSAT-9