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: 1/13/2025
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 01/15/2025 14:03:40 -70.53, 144.92 88.45 01/15/2025 14:04:51 -70.40, 145.63 88.62 30.33 71
2 01/15/2025 14:54:19 70.16, -47.18 91.15 01/15/2025 14:54:21 70.14, -47.11 91.13 3.55 2
3 01/15/2025 15:45:00 -70.02, 120.34 89.00 01/15/2025 15:43:51 -70.02, 120.37 88.99 0.91 69
4 01/18/2025 06:20:21 -70.20, -98.76 89.32 01/18/2025 06:21:22 -70.19, -98.79 89.34 1.61 61
5 01/18/2025 07:11:05 70.09, 68.72 90.56 01/18/2025 07:10:49 70.09, 68.70 90.56 0.63 16
6 01/18/2025 08:01:37 -69.48,-123.06 90.09 01/18/2025 08:00:27 -69.54,-124.42 89.98 53.57 70
7 01/20/2025 22:37:09 -70.20, 17.04 89.89 01/20/2025 22:37:50 -70.17, 17.06 89.93 3.21 41
8 01/20/2025 23:27:53 70.08,-175.47 89.98 01/20/2025 23:27:17 70.06,-175.45 89.97 2.42 36
9 01/23/2025 14:03:29 71.01, -35.80 90.37 01/23/2025 14:04:36 70.88, -33.63 90.15 79.95 67
10 01/23/2025 14:53:56 -70.15, 132.92 90.56 01/23/2025 14:54:17 -70.17, 132.94 90.54 2.51 21
11 01/23/2025 15:44:40 70.03, -59.60 89.32 01/23/2025 15:43:44 70.05, -59.57 89.35 3.06 56
12 01/26/2025 06:20:03 70.29, 81.18 88.95 01/26/2025 06:21:14 70.24, 81.30 88.89 7.32 71
13 01/26/2025 07:10:43 -70.10,-111.22 91.26 01/26/2025 07:10:44 -70.13,-111.22 91.23 3.22 1
14 01/26/2025 08:01:25 69.88, 56.42 88.51 01/26/2025 08:00:13 69.91, 56.11 88.56 12.27 72

Figure of NOAA-21 and LANDSAT-8 satellite orbits during SNOs since TLE Epoch: 1/13/2025
SNOs_Map_NOAA-21_LANDSAT-8_20250113.jpg

Download SNOs between NOAA-21 and LANDSAT-8 since TLE EPOCH: 01/13/2025 in txt file.

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