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: 1/1/2025
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 01/02/2025 21:59:30 -70.70, 25.49 86.49 01/02/2025 22:00:39 -70.60, 27.01 86.65 57.18 69
2 01/02/2025 22:50:03 70.07,-166.21 92.85 01/02/2025 22:50:13 70.05,-166.14 92.83 3.24 10
3 01/02/2025 23:40:44 -69.92, 1.35 87.32 01/02/2025 23:39:43 -69.94, 1.33 87.29 2.75 61
4 01/05/2025 14:16:16 -70.12, 142.17 87.38 01/05/2025 14:17:11 -70.10, 142.19 87.40 2.15 55
5 01/05/2025 15:06:59 69.97, -50.29 92.46 01/05/2025 15:06:38 69.99, -50.32 92.49 2.97 21
6 01/05/2025 15:57:28 -69.17, 118.19 88.37 01/05/2025 15:56:20 -69.22, 116.26 88.26 76.35 68
7 01/08/2025 05:42:45 70.94, 89.31 93.16 01/08/2025 05:43:52 70.85, 91.57 92.99 82.71 67
8 01/08/2025 06:33:13 -70.09,-102.01 87.75 01/08/2025 06:33:34 -70.08,-101.94 87.76 2.91 21
9 01/08/2025 07:23:56 69.94, 65.52 92.10 01/08/2025 07:23:01 69.97, 65.55 92.13 3.03 55
10 01/10/2025 21:59:27 70.14,-153.64 91.93 01/10/2025 22:00:26 70.15,-153.56 91.93 2.84 59
11 01/10/2025 22:50:09 -70.02, 13.86 88.20 01/10/2025 22:49:56 -70.04, 13.91 88.19 2.70 13
12 01/10/2025 23:40:42 69.35,-177.84 91.10 01/10/2025 23:39:33 69.37,-179.36 91.17 59.73 69
13 01/13/2025 14:16:23 70.10, -37.80 91.45 01/13/2025 14:16:47 70.08, -37.74 91.43 2.99 24
14 01/13/2025 15:07:04 -69.97, 129.70 88.69 01/13/2025 15:06:16 -69.97, 129.74 88.69 1.50 48

Figure of NPP and LANDSAT-9 satellite orbits during SNOs since TLE Epoch: 1/1/2025
SNOs_Map_NPP_LANDSAT-9_20250101.jpg

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

Historial Predications of SNOs between NPP and LANDSAT-9