Simultaneous Nadir Overpasses (SNOs) Predictions

Prediction of SNOs between LANDSAT-8 and NPP Satellite Orbit:

Table of predicted SNOs for the next 14.0 days since TLE Epoch: 1/21/2025
Index Date (LANDSAT-8) Time (LANDSAT-8) Lat,Lon (LANDSAT-8) SZA (LANDSAT-8 ) Date (NPP) Time (NPP) Lat,Lon (NPP) SZA (NPP ) Distance(km) Time Diff (sec)
1 01/22/2025 22:25:26 -70.11, 20.07 90.44 01/22/2025 22:24:54 -70.10, 20.06 90.43 0.23 32
2 01/22/2025 23:14:53 70.00,-172.43 89.46 01/22/2025 23:15:38 70.01,-172.48 89.46 2.05 45
3 01/25/2025 13:52:21 70.23, -31.49 89.05 01/25/2025 13:51:09 70.27, -31.74 89.11 10.11 72
4 01/25/2025 14:41:52 -70.06, 135.90 91.12 01/25/2025 14:41:49 -70.05, 135.92 91.13 1.76 3
5 01/25/2025 15:31:20 69.90, -56.68 88.72 01/25/2025 15:32:32 69.90, -56.55 88.71 4.97 72
6 01/28/2025 06:08:47 70.14, 84.27 88.28 01/28/2025 06:08:02 70.12, 84.26 88.27 1.34 45
7 01/28/2025 06:58:17 -70.02,-108.26 91.84 01/28/2025 06:58:44 -70.01,-108.24 91.86 1.78 27
8 01/30/2025 21:35:34 -70.75, 33.44 91.86 01/30/2025 21:34:25 -70.81, 31.62 91.71 66.80 69
9 01/30/2025 22:25:11 70.10,-159.89 87.51 01/30/2025 22:24:57 70.10,-159.92 87.52 1.55 14
10 01/30/2025 23:14:41 -69.98, 7.59 92.61 01/30/2025 23:15:39 -69.98, 7.57 92.62 0.90 58
11 02/02/2025 13:52:06 -70.17, 148.49 93.17 02/02/2025 13:51:07 -70.17, 148.42 93.15 2.32 59
12 02/02/2025 14:41:33 70.06, -44.03 86.72 02/02/2025 14:41:50 70.04, -44.05 86.69 2.43 17
13 02/02/2025 15:31:13 -69.40, 122.70 93.92 02/02/2025 15:32:22 -69.39, 124.22 94.00 59.69 69

Figure of LANDSAT-8 and NPP satellite orbits during SNOs since TLE Epoch: 1/21/2025
SNOs_Map_LANDSAT-8_NPP_20250121.jpg

Download SNOs between LANDSAT-8 and NPP since TLE EPOCH: 01/21/2025 in txt file.

Historial Predications of SNOs between LANDSAT-8 and NPP