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: 1/10/2025
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 01/10/2025 21:59:34 70.52,-154.24 92.34 01/10/2025 22:00:45 70.39,-153.31 92.17 37.49 71
2 01/10/2025 22:50:09 -70.05, 13.82 88.17 01/10/2025 22:50:19 -70.06, 13.85 88.16 2.15 10
3 01/10/2025 23:40:53 69.94,-178.72 91.72 01/10/2025 23:39:46 69.96,-178.65 91.74 3.18 67
4 01/13/2025 14:16:24 70.15, -37.88 91.51 01/13/2025 14:17:21 70.13, -37.82 91.48 3.01 57
5 01/13/2025 15:07:06 -70.04, 129.60 88.62 01/13/2025 15:06:51 -70.03, 129.67 88.63 2.55 15
6 01/13/2025 15:57:37 69.25, -61.93 90.56 01/13/2025 15:56:29 69.31, -63.66 90.69 68.54 68
7 01/16/2025 06:33:19 70.10, 77.96 90.97 01/16/2025 06:33:51 70.11, 78.02 90.98 2.69 32
8 01/16/2025 07:24:01 -69.98,-114.55 89.16 01/16/2025 07:23:22 -69.95,-114.57 89.19 3.46 39
9 01/18/2025 21:59:39 -70.57, 25.68 89.06 01/18/2025 22:00:49 -70.49, 26.81 89.19 42.64 70
10 01/18/2025 22:50:15 70.06,-166.21 90.40 01/18/2025 22:50:22 70.05,-166.19 90.38 1.58 7
11 01/18/2025 23:40:57 -69.94, 1.28 89.74 01/18/2025 23:39:52 -69.95, 1.31 89.72 1.27 65
12 01/21/2025 14:16:27 -70.11, 142.16 90.12 01/21/2025 14:17:25 -70.12, 142.15 90.12 0.99 58
13 01/21/2025 15:07:11 70.03, -50.40 89.79 01/21/2025 15:06:52 70.00, -50.37 89.76 3.17 19
14 01/21/2025 15:57:41 -69.27, 118.03 91.01 01/21/2025 15:56:32 -69.36, 116.38 90.86 65.59 69
15 01/24/2025 06:33:23 -70.09,-102.03 90.76 01/24/2025 06:33:54 -70.10,-102.00 90.76 1.37 31
16 01/24/2025 07:24:06 69.96, 65.48 89.09 01/24/2025 07:23:21 69.97, 65.47 89.11 2.03 45

Figure of NPP and LANDSAT-9 satellite orbits during SNOs since TLE Epoch: 1/10/2025
SNOs_Map_NPP_LANDSAT-9_20250111.jpg

Download SNOs between NPP and LANDSAT-9 since TLE EPOCH: 01/10/2025 in txt file.

Historial Predications of SNOs between NPP and LANDSAT-9