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: 2/14/2023
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 02/14/2023 22:00:14 -70.25, 26.38 96.84 02/14/2023 22:01:09 -70.23, 26.37 96.88 2.76 55
2 02/14/2023 22:50:58 70.14,-166.14 83.03 02/14/2023 22:50:36 70.13,-166.13 83.02 1.47 22
3 02/14/2023 23:41:26 -69.31, 2.41 97.86 02/14/2023 23:40:18 -69.35, 0.44 97.73 77.85 68
4 02/17/2023 14:17:08 -70.21, 142.23 97.82 02/17/2023 14:17:36 -70.19, 142.20 97.84 2.87 28
5 02/17/2023 15:07:52 70.10, -50.29 82.06 02/17/2023 15:07:03 70.08, -50.31 82.05 2.17 49
6 02/20/2023 05:43:20 70.28, 90.59 81.32 02/20/2023 05:44:32 70.26, 90.56 81.29 2.76 72
7 02/20/2023 06:34:02 -70.18,-101.94 98.80 02/20/2023 06:34:01 -70.20,-101.89 98.78 2.67 1
8 02/20/2023 07:24:43 69.92, 65.77 80.91 02/20/2023 07:23:30 69.98, 65.44 81.00 14.51 73
9 02/22/2023 22:00:14 70.27,-153.61 80.34 02/22/2023 22:00:56 70.27,-153.53 80.32 2.92 42
10 02/22/2023 22:50:56 -70.17, 13.86 99.78 02/22/2023 22:50:26 -70.16, 13.94 99.80 3.37 30
11 02/25/2023 13:26:34 -70.95, 153.76 99.92 02/25/2023 13:27:42 -70.88, 155.64 100.08 68.70 68
12 02/25/2023 14:17:06 70.22, -37.75 79.30 02/25/2023 14:17:19 70.22, -37.70 79.29 1.92 13
13 02/25/2023 15:07:48 -70.12, 129.72 100.83 02/25/2023 15:06:49 -70.11, 129.78 100.83 2.22 59

Figure of NPP and LANDSAT-9 satellite orbits during SNOs since TLE Epoch: 2/14/2023
SNOs_Map_NPP_LANDSAT-9_20230214.jpg

Download SNOs between NPP and LANDSAT-9 since TLE EPOCH: 02/14/2023 in txt file.

Historial Predications of SNOs between NPP and LANDSAT-9