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: 1/24/2025
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 01/24/2025 06:33:22 -70.09,-102.03 90.76 01/24/2025 06:33:53 -70.08,-102.03 90.78 1.35 31
2 01/24/2025 07:24:06 69.99, 65.43 89.13 01/24/2025 07:23:20 69.97, 65.46 89.12 2.60 46
3 01/26/2025 21:59:38 70.31,-153.92 88.82 01/26/2025 22:00:49 70.24,-153.55 88.72 16.20 71
4 01/26/2025 22:50:17 -70.04, 13.82 91.48 01/26/2025 22:50:21 -70.02, 13.77 91.50 3.35 4
5 01/26/2025 23:41:00 69.90,-178.65 88.36 01/26/2025 23:39:48 69.91,-178.74 88.39 3.64 72
6 01/29/2025 14:16:30 70.12, -37.85 87.92 01/29/2025 14:17:17 70.12, -37.83 87.90 0.99 47
7 01/29/2025 15:07:12 -70.01, 129.64 92.22 01/29/2025 15:06:47 -70.01, 129.65 92.22 0.43 25
8 02/01/2025 05:42:55 -70.98, -90.77 91.91 02/01/2025 05:44:02 -70.88, -88.45 92.12 84.95 67
9 02/01/2025 06:33:23 70.05, 78.03 87.10 02/01/2025 06:33:42 70.06, 77.98 87.10 2.04 19
10 02/01/2025 07:24:05 -69.94,-114.48 93.04 02/01/2025 07:23:12 -69.95,-114.54 93.02 2.61 53
11 02/03/2025 21:59:34 -70.14, 26.37 93.58 02/03/2025 22:00:39 -70.16, 26.38 93.58 2.62 65
12 02/03/2025 22:50:18 70.05,-166.19 86.32 02/03/2025 22:50:06 70.05,-166.14 86.31 2.10 12
13 02/03/2025 23:40:53 -69.57, 1.85 94.21 02/03/2025 23:39:42 -69.61, 0.89 94.12 37.49 71
14 02/06/2025 14:16:28 -70.10, 142.21 94.44 02/06/2025 14:17:03 -70.10, 142.20 94.45 0.33 35
15 02/06/2025 15:07:11 69.96, -50.27 85.40 02/06/2025 15:06:30 69.98, -50.32 85.43 3.34 41

Figure of NPP and LANDSAT-9 satellite orbits during SNOs since TLE Epoch: 1/24/2025
SNOs_Map_NPP_LANDSAT-9_20250124.jpg

Download SNOs between NPP and LANDSAT-9 since TLE EPOCH: 01/24/2025 in txt file.

Historial Predications of SNOs between NPP and LANDSAT-9