Simultaneous Nadir Overpasses (SNOs) Predictions

Prediction of SNOs between NOAA-21 and LANDSAT-8 Satellite Orbit:

Table of predicted SNOs for the next 14.0 days since TLE Epoch: 3/29/2025
Index Date (NOAA-21) Time (NOAA-21) Lat,Lon (NOAA-21) SZA (NOAA-21 ) Date (LANDSAT-8) Time (LANDSAT-8) Lat,Lon (LANDSAT-8) SZA (LANDSAT-8 ) Distance(km) Time Diff (sec)
1 03/31/2025 06:20:00 70.22, 81.18 65.92 03/31/2025 06:20:56 70.22, 81.22 65.91 1.23 56
2 03/31/2025 07:10:42 -70.11,-111.33 114.22 03/31/2025 07:10:26 -70.11,-111.31 114.22 0.82 16
3 03/31/2025 08:01:13 69.33, 57.13 64.96 03/31/2025 08:00:05 69.34, 55.29 65.04 72.49 68
4 04/02/2025 22:36:51 70.17,-162.96 64.83 04/02/2025 22:37:26 70.16,-162.99 64.81 1.70 35
5 04/02/2025 23:27:33 -70.06, 4.53 115.31 04/02/2025 23:26:56 -70.05, 4.49 115.31 1.83 37
6 04/05/2025 14:03:10 -70.85, 144.43 115.48 04/05/2025 14:04:19 -70.71, 146.05 115.67 61.11 69
7 04/05/2025 14:53:42 70.14, -47.13 63.77 04/05/2025 14:53:54 70.17, -47.11 63.79 3.11 12
8 04/05/2025 15:44:24 -70.02, 120.37 116.37 04/05/2025 15:43:25 -70.00, 120.30 116.38 3.23 59
9 04/08/2025 06:19:49 -70.25, -98.82 117.12 04/08/2025 06:20:54 -70.24, -98.77 117.14 2.53 65
10 04/08/2025 07:10:32 70.12, 68.68 62.74 04/08/2025 07:10:21 70.13, 68.72 62.74 1.39 11
11 04/08/2025 08:01:08 -69.68,-123.34 117.73 04/08/2025 07:59:56 -69.75,-124.18 117.64 33.21 72
12 04/10/2025 22:36:39 -70.19, 17.05 118.17 04/10/2025 22:37:21 -70.21, 17.08 118.16 2.25 42
13 04/10/2025 23:27:22 70.07,-175.45 61.69 04/10/2025 23:26:48 70.10,-175.44 61.72 2.75 34

Figure of NOAA-21 and LANDSAT-8 satellite orbits during SNOs since TLE Epoch: 3/29/2025
SNOs_Map_NOAA-21_LANDSAT-8_20250329.jpg

Download SNOs between NOAA-21 and LANDSAT-8 since TLE EPOCH: 03/29/2025 in txt file.

Historial Predications of SNOs between NOAA-21 and LANDSAT-8