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: 2/21/2026
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 02/21/2026 10:34:35 -70.61,-161.56 98.91 02/21/2026 10:33:49 -70.64,-161.59 98.87 2.87 46
2 02/21/2026 11:24:02 70.52, 5.94 80.99 02/21/2026 11:24:32 70.49, 5.96 80.96 2.76 30
3 02/24/2026 02:01:23 71.31, 147.76 80.79 02/24/2026 02:00:15 71.34, 145.69 80.91 74.01 68
4 02/24/2026 02:51:04 -70.60, -45.71 99.91 02/24/2026 02:50:45 -70.60, -45.75 99.90 1.48 19
5 02/24/2026 03:40:31 70.49, 121.78 79.99 02/24/2026 03:41:29 70.51, 121.72 80.00 2.86 58
6 02/26/2026 18:18:03 70.67, -97.35 79.18 02/26/2026 18:16:59 70.68, -97.41 79.21 2.45 64
7 02/26/2026 19:07:33 -70.56, 70.12 100.94 02/26/2026 19:07:41 -70.57, 70.09 100.93 1.45 8
8 02/26/2026 19:57:07 70.07,-122.95 78.59 02/26/2026 19:58:17 70.05,-121.79 78.52 44.16 70
9 03/01/2026 10:34:31 70.62, 18.44 78.11 03/01/2026 10:33:53 70.60, 18.50 78.11 2.53 38
10 03/01/2026 11:24:01 -70.51,-174.08 102.00 03/01/2026 11:24:35 -70.49,-174.01 102.03 3.44 34
11 03/04/2026 02:01:25 -71.09, -32.59 102.45 03/04/2026 02:00:14 -71.15, -33.94 102.34 48.88 71
12 03/04/2026 02:50:59 70.60, 134.30 77.07 03/04/2026 02:50:49 70.58, 134.32 77.05 1.98 10
13 03/04/2026 03:40:29 -70.50, -58.22 103.05 03/04/2026 03:41:31 -70.47, -58.19 103.08 2.80 62
14 03/06/2026 18:18:00 -70.68, 82.66 103.89 03/06/2026 18:17:01 -70.66, 82.66 103.89 1.78 59
15 03/06/2026 19:07:27 70.56,-109.87 76.00 03/06/2026 19:07:45 70.57,-109.88 76.00 0.27 18

Figure of LANDSAT-8 and NPP satellite orbits during SNOs since TLE Epoch: 2/21/2026
SNOs_Map_LANDSAT-8_NPP_20260221.jpg

Download SNOs between LANDSAT-8 and NPP since TLE EPOCH: 02/21/2026 in txt file.

Historial Predications of SNOs between LANDSAT-8 and NPP