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: 4/2/2025
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 04/02/2025 22:36:51 70.16,-162.94 64.82 04/02/2025 22:37:26 70.17,-162.98 64.82 1.77 35
2 04/02/2025 23:27:33 -70.05, 4.54 115.32 04/02/2025 23:26:56 -70.05, 4.49 115.31 2.19 37
3 04/05/2025 14:03:10 -70.83, 144.46 115.50 04/05/2025 14:04:19 -70.73, 146.07 115.65 60.21 69
4 04/05/2025 14:53:42 70.12, -47.10 63.75 04/05/2025 14:53:55 70.13, -47.16 63.76 2.74 13
5 04/05/2025 15:44:24 -70.00, 120.40 116.39 04/05/2025 15:43:25 -70.02, 120.32 116.36 3.62 59
6 04/08/2025 06:19:49 -70.22, -98.78 117.15 04/08/2025 06:20:55 -70.22, -98.80 117.16 0.54 66
7 04/08/2025 07:10:32 70.09, 68.73 62.71 04/08/2025 07:10:22 70.11, 68.70 62.73 3.04 10
8 04/08/2025 08:01:09 -69.70,-123.38 117.71 04/08/2025 07:59:57 -69.73,-124.21 117.65 32.20 72
9 04/10/2025 22:36:40 -70.20, 17.04 118.17 04/10/2025 22:37:23 -70.17, 17.01 118.20 3.35 43
10 04/10/2025 23:27:23 70.07,-175.46 61.69 04/10/2025 23:26:50 70.06,-175.50 61.68 2.22 33
11 04/13/2025 14:03:01 70.95, -35.70 61.65 04/13/2025 14:04:09 70.84, -33.74 61.49 72.38 68
12 04/13/2025 14:53:30 -70.14, 132.92 119.21 04/13/2025 14:53:50 -70.14, 132.85 119.21 2.67 20
13 04/13/2025 15:44:14 70.07, -59.66 60.71 04/13/2025 15:43:16 70.08, -59.59 60.72 2.97 58

Figure of NOAA-21 and LANDSAT-8 satellite orbits during SNOs since TLE Epoch: 4/2/2025
SNOs_Map_NOAA-21_LANDSAT-8_20250402.jpg

Download SNOs between NOAA-21 and LANDSAT-8 since TLE EPOCH: 04/02/2025 in txt file.

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