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: 1/10/2025
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 01/12/2025 22:37:30 70.15,-162.96 91.62 01/12/2025 22:37:52 70.14,-162.98 91.60 1.42 22
2 01/12/2025 23:28:11 -70.01, 4.56 88.54 01/12/2025 23:27:22 -70.03, 4.49 88.52 3.08 49
3 01/15/2025 14:03:39 -70.50, 144.97 88.49 01/15/2025 14:04:51 -70.39, 145.61 88.63 26.88 72
4 01/15/2025 14:54:18 70.13, -47.13 91.12 01/15/2025 14:54:21 70.12, -47.13 91.11 0.63 3
5 01/15/2025 15:44:59 -69.99, 120.39 89.04 01/15/2025 15:43:51 -70.01, 120.35 89.01 2.77 68
6 01/18/2025 06:20:22 -70.22, -98.80 89.30 01/18/2025 06:21:22 -70.23, -98.74 89.31 2.23 60
7 01/18/2025 07:11:06 70.11, 68.69 90.58 01/18/2025 07:10:49 70.12, 68.75 90.59 2.74 17
8 01/18/2025 08:01:38 -69.50,-123.09 90.07 01/18/2025 08:00:28 -69.52,-124.45 90.00 53.01 70
9 01/20/2025 22:37:09 -70.17, 17.09 89.92 01/20/2025 22:37:50 -70.20, 17.10 89.90 3.23 41
10 01/20/2025 23:27:53 70.05,-175.43 89.96 01/20/2025 23:27:18 70.03,-175.49 89.94 3.40 35
11 01/23/2025 14:03:28 70.99, -35.76 90.35 01/23/2025 14:04:35 70.89, -33.60 90.16 79.04 67
12 01/23/2025 14:53:55 -70.12, 132.95 90.58 01/23/2025 14:54:17 -70.13, 132.90 90.58 2.39 22
13 01/23/2025 15:44:39 70.01, -59.56 89.30 01/23/2025 15:43:44 70.02, -59.62 89.31 2.35 55

Figure of NOAA-21 and LANDSAT-8 satellite orbits during SNOs since TLE Epoch: 1/10/2025
SNOs_Map_NOAA-21_LANDSAT-8_20250111.jpg

Download SNOs between NOAA-21 and LANDSAT-8 since TLE EPOCH: 01/10/2025 in txt file.

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