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: 2/15/2023
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 14:17:08 -70.23, 142.21 97.80 02/17/2023 14:17:35 -70.23, 142.26 97.80 2.26 27
2 02/17/2023 15:07:52 70.11, -50.31 82.08 02/17/2023 15:07:02 70.13, -50.24 82.09 3.18 50
3 02/20/2023 05:43:20 70.29, 90.57 81.33 02/20/2023 05:44:32 70.26, 90.56 81.29 3.03 72
4 02/20/2023 06:34:02 -70.19,-101.96 98.79 02/20/2023 06:34:01 -70.20,-101.89 98.78 3.01 1
5 02/20/2023 07:24:43 69.93, 65.75 80.93 02/20/2023 07:23:30 69.99, 65.45 81.01 13.49 73
6 02/22/2023 22:00:13 70.22,-153.54 80.29 02/22/2023 22:00:57 70.24,-153.58 80.30 2.23 44
7 02/22/2023 22:50:55 -70.12, 13.93 99.83 02/22/2023 22:50:27 -70.13, 13.89 99.83 1.41 28
8 02/25/2023 13:26:36 -71.00, 153.67 99.87 02/25/2023 13:27:44 -70.87, 155.62 100.08 72.33 68
9 02/25/2023 14:17:07 70.22, -37.75 79.30 02/25/2023 14:17:21 70.21, -37.71 79.28 1.57 14
10 02/25/2023 15:07:49 -70.12, 129.72 100.83 02/25/2023 15:06:51 -70.10, 129.76 100.84 2.29 58
11 02/28/2023 05:43:15 -70.28, -89.37 101.64 02/28/2023 05:44:17 -70.26, -89.39 101.67 2.48 62
12 02/28/2023 06:33:59 70.18, 78.10 78.24 02/28/2023 06:33:43 70.20, 78.16 78.26 3.18 16
13 02/28/2023 07:24:32 -69.60,-113.72 102.38 02/28/2023 07:23:21 -69.65,-114.97 102.27 48.70 71

Figure of NPP and LANDSAT-9 satellite orbits during SNOs since TLE Epoch: 2/15/2023
SNOs_Map_NPP_LANDSAT-9_20230215.jpg

Download SNOs between NPP and LANDSAT-9 since TLE EPOCH: 02/15/2023 in txt file.

Historial Predications of SNOs between NPP and LANDSAT-9