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: 2/16/2023
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 02/17/2023 14:17:09 -70.24, 142.19 97.79 02/17/2023 14:17:36 -70.21, 142.23 97.82 3.15 27
2 02/17/2023 15:07:53 70.13, -50.33 82.09 02/17/2023 15:07:03 70.11, -50.27 82.08 2.85 50
3 02/20/2023 05:43:20 70.31, 90.55 81.35 02/20/2023 05:44:31 70.28, 90.59 81.31 3.25 71
4 02/20/2023 06:34:01 -70.16,-101.91 98.82 02/20/2023 06:34:01 -70.16,-101.94 98.82 1.67 0
5 02/20/2023 07:24:42 69.89, 65.81 80.89 02/20/2023 07:23:30 69.95, 65.39 80.97 17.26 72
6 02/22/2023 22:00:13 70.24,-153.57 80.31 02/22/2023 22:00:56 70.22,-153.60 80.28 2.31 43
7 02/22/2023 22:50:55 -70.15, 13.90 99.81 02/22/2023 22:50:25 -70.17, 13.96 99.79 3.22 30
8 02/25/2023 13:26:34 -70.93, 153.80 99.95 02/25/2023 13:27:43 -70.82, 155.55 100.13 64.92 69
9 02/25/2023 14:17:06 70.19, -37.71 79.27 02/25/2023 14:17:19 70.22, -37.70 79.29 2.68 13
10 02/25/2023 15:07:48 -70.10, 129.76 100.85 02/25/2023 15:06:49 -70.11, 129.78 100.83 1.60 59
11 02/28/2023 05:43:15 -70.26, -89.34 101.66 02/28/2023 05:44:15 -70.27, -89.36 101.66 1.18 60
12 02/28/2023 06:33:59 70.16, 78.12 78.23 02/28/2023 06:33:42 70.16, 78.11 78.22 0.92 17

Figure of NPP and LANDSAT-9 satellite orbits during SNOs since TLE Epoch: 2/16/2023
SNOs_Map_NPP_LANDSAT-9_20230216.jpg

Download SNOs between NPP and LANDSAT-9 since TLE EPOCH: 02/16/2023 in txt file.

Historial Predications of SNOs between NPP and LANDSAT-9