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: 2/17/2023
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 02/17/2023 14:17:09 -70.24, 142.19 97.79 02/17/2023 14:17:36 -70.21, 142.23 97.82 3.30 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 2.83 50
3 02/20/2023 05:43:20 70.30, 90.55 81.35 02/20/2023 05:44:31 70.29, 90.60 81.32 2.53 71
4 02/20/2023 06:34:01 -70.16,-101.90 98.83 02/20/2023 06:34:01 -70.17,-101.94 98.81 2.00 0
5 02/20/2023 07:24:42 69.89, 65.82 80.88 02/20/2023 07:23:30 69.96, 65.40 80.98 17.46 72
6 02/22/2023 22:00:13 70.24,-153.56 80.30 02/22/2023 22:00:56 70.24,-153.57 80.30 0.59 43
7 02/22/2023 22:50:55 -70.14, 13.90 99.81 02/22/2023 22:50:26 -70.13, 13.90 99.82 1.49 29
8 02/25/2023 13:26:35 -70.97, 153.73 99.90 02/25/2023 13:27:43 -70.85, 155.59 100.11 69.08 68
9 02/25/2023 14:17:06 70.18, -37.70 79.26 02/25/2023 14:17:20 70.19, -37.74 79.26 2.01 14
10 02/25/2023 15:07:48 -70.09, 129.77 100.86 02/25/2023 15:06:50 -70.08, 129.74 100.86 1.46 58
11 02/28/2023 05:43:15 -70.25, -89.32 101.68 02/28/2023 05:44:16 -70.26, -89.38 101.67 2.94 61
12 02/28/2023 06:33:59 70.14, 78.15 78.21 02/28/2023 06:33:43 70.15, 78.10 78.21 2.09 16
13 02/28/2023 07:24:31 -69.52,-113.59 102.47 02/28/2023 07:23:21 -69.60,-115.03 102.32 56.68 70
14 03/02/2023 22:00:07 -70.22, 26.51 102.73 03/02/2023 22:00:37 -70.22, 26.46 102.74 1.94 30
15 03/02/2023 22:50:51 70.12,-166.02 77.16 03/02/2023 22:50:04 70.10,-166.06 77.14 2.83 47

Figure of NPP and LANDSAT-9 satellite orbits during SNOs since TLE Epoch: 2/17/2023
SNOs_Map_NPP_LANDSAT-9_20230217.jpg

Download SNOs between NPP and LANDSAT-9 since TLE EPOCH: 02/17/2023 in txt file.

Historial Predications of SNOs between NPP and LANDSAT-9