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: 3/1/2025
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 03/02/2025 14:16:16 70.15, -37.77 77.14 03/02/2025 14:17:14 70.17, -37.80 77.15 2.69 58
2 03/02/2025 15:06:58 -70.07, 129.66 102.96 03/02/2025 15:06:44 -70.06, 129.68 102.97 1.53 14
3 03/02/2025 15:57:30 69.31, -61.91 76.23 03/02/2025 15:56:22 69.35, -63.65 76.35 68.56 68
4 03/05/2025 06:33:08 70.14, 78.03 76.09 03/05/2025 06:33:44 70.12, 78.02 76.08 1.31 36
5 03/05/2025 07:23:49 -70.01,-114.45 104.06 03/05/2025 07:23:14 -70.02,-114.50 104.04 2.25 35
6 03/07/2025 21:59:26 -70.84, 25.39 104.20 03/07/2025 22:00:35 -70.73, 27.14 104.39 65.43 69
7 03/07/2025 22:49:58 70.09,-166.10 75.00 03/07/2025 22:50:12 70.07,-166.18 74.98 3.20 14
8 03/07/2025 23:40:40 -70.01, 1.33 105.10 03/07/2025 23:39:41 -70.02, 1.39 105.09 2.37 59
9 03/10/2025 14:16:05 -70.18, 142.24 105.95 03/10/2025 14:17:12 -70.19, 142.22 105.96 0.62 67
10 03/10/2025 15:06:49 70.06, -50.27 73.91 03/10/2025 15:06:39 70.07, -50.30 73.92 1.78 10
11 03/10/2025 15:57:25 -69.67, 117.64 106.52 03/10/2025 15:56:13 -69.75, 116.89 106.40 30.52 72
12 03/13/2025 06:32:56 -70.17,-101.95 107.02 03/13/2025 06:33:38 -70.18,-101.90 107.02 2.34 42
13 03/13/2025 07:23:40 70.05, 65.55 72.84 03/13/2025 07:23:05 70.06, 65.58 72.86 2.19 35

Figure of NPP and LANDSAT-9 satellite orbits during SNOs since TLE Epoch: 3/1/2025
SNOs_Map_NPP_LANDSAT-9_20250301.jpg

Download SNOs between NPP and LANDSAT-9 since TLE EPOCH: 03/01/2025 in txt file.

Historial Predications of SNOs between NPP and LANDSAT-9