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: 10/17/2025
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 10/19/2025 04:30:16 -70.35, -70.72 99.70 10/19/2025 04:29:25 -70.37, -70.70 99.68 2.51 51
2 10/19/2025 05:19:43 70.25, 96.78 80.21 10/19/2025 05:20:09 70.28, 96.76 80.24 3.18 26
3 10/21/2025 19:57:00 71.15,-121.25 82.06 10/21/2025 19:55:53 71.17,-123.57 82.08 83.53 67
4 10/21/2025 20:46:43 -70.33, 45.14 98.77 10/21/2025 20:46:21 -70.33, 45.14 98.77 0.27 22
5 10/21/2025 21:36:10 70.22,-147.37 81.14 10/21/2025 21:37:05 70.23,-147.40 81.16 1.74 55
6 10/24/2025 12:13:41 70.38, -6.53 82.22 10/24/2025 12:12:36 70.41, -6.53 82.25 3.05 65
7 10/24/2025 13:03:11 -70.28, 160.95 97.88 10/24/2025 13:03:18 -70.30, 160.96 97.86 2.57 7
8 10/24/2025 13:52:45 69.78, -32.11 81.63 10/24/2025 13:53:54 69.78, -30.93 81.64 45.11 69
9 10/27/2025 04:30:08 70.35, 109.32 83.10 10/27/2025 04:29:32 70.34, 109.36 83.09 2.35 36
10 10/27/2025 05:19:38 -70.25, -83.20 97.00 10/27/2025 05:20:14 -70.22, -83.15 97.02 3.24 36
11 10/29/2025 19:57:03 -70.68, 58.06 95.69 10/29/2025 19:55:51 -70.73, 57.18 95.64 32.65 72
12 10/29/2025 20:46:34 70.35,-134.79 83.99 10/29/2025 20:46:29 70.32,-134.85 83.97 3.30 5
13 10/29/2025 21:36:05 -70.19, 32.61 96.17 10/29/2025 21:37:11 -70.21, 32.64 96.14 2.91 66

Figure of LANDSAT-8 and NPP satellite orbits during SNOs since TLE Epoch: 10/17/2025
SNOs_Map_LANDSAT-8_NPP_20251017.jpg

Download SNOs between LANDSAT-8 and NPP since TLE EPOCH: 10/17/2025 in txt file.

Historial Predications of SNOs between LANDSAT-8 and NPP