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: 4/8/2025
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 04/10/2025 06:08:31 -70.23, -95.69 117.89 04/10/2025 06:07:45 -70.21, -95.66 117.90 2.16 46
2 04/10/2025 06:57:58 70.12, 71.81 62.00 04/10/2025 06:58:30 70.12, 71.79 61.99 0.89 32
3 04/12/2025 21:35:22 70.61,-146.88 61.51 04/12/2025 21:34:11 70.68,-147.97 61.62 41.19 71
4 04/12/2025 22:24:58 -70.16, 20.11 118.94 04/12/2025 22:24:45 -70.19, 20.13 118.91 2.79 13
5 04/12/2025 23:14:25 70.06,-172.40 60.95 04/12/2025 23:15:29 70.05,-172.35 60.94 2.26 64
6 04/15/2025 13:51:52 70.28, -31.47 60.23 04/15/2025 13:51:02 70.26, -31.54 60.21 3.52 50
7 04/15/2025 14:41:23 -70.11, 135.92 119.95 04/15/2025 14:41:43 -70.13, 135.99 119.94 2.77 20
8 04/15/2025 15:31:06 69.12, -57.78 59.08 04/15/2025 15:32:11 69.14, -55.26 59.04 99.73 65
9 04/18/2025 05:18:38 -71.00, -82.14 120.01 04/18/2025 05:17:30 -71.02, -84.32 119.93 79.15 68
10 04/18/2025 06:08:18 70.18, 84.28 59.19 04/18/2025 06:08:01 70.21, 84.29 59.22 3.47 17
11 04/18/2025 06:57:48 -70.07,-108.24 120.94 04/18/2025 06:58:42 -70.08,-108.18 120.94 2.40 54
12 04/20/2025 21:35:15 -70.27, 32.65 121.65 04/20/2025 21:34:15 -70.25, 32.69 121.66 2.17 60
13 04/20/2025 22:24:42 70.15,-159.87 58.23 04/20/2025 22:24:59 70.13,-159.82 58.21 2.92 17

Figure of LANDSAT-8 and NPP satellite orbits during SNOs since TLE Epoch: 4/8/2025
SNOs_Map_LANDSAT-8_NPP_20250408.jpg

Download SNOs between LANDSAT-8 and NPP since TLE EPOCH: 04/08/2025 in txt file.

Historial Predications of SNOs between LANDSAT-8 and NPP