Simultaneous Nadir Overpasses (SNOs) Predictions

Prediction of SNOs between NOAA-20 and LANDSAT-9 Satellite Orbit:

Table of predicted SNOs for the next 14.0 days since TLE Epoch: 10/29/2025
Index Date (NOAA-20) Time (NOAA-20) Lat,Lon (NOAA-20) SZA (NOAA-20 ) Date (LANDSAT-9) Time (LANDSAT-9) Lat,Lon (LANDSAT-9) SZA (LANDSAT-9 ) Distance(km) Time Diff (sec)
1 10/30/2025 14:53:16 -70.53, 132.24 95.59 10/30/2025 14:54:26 -70.43, 133.39 95.68 43.78 70
2 10/30/2025 15:43:52 69.97, -59.58 83.87 10/30/2025 15:43:59 70.00, -59.59 83.90 3.30 7
3 10/30/2025 16:34:34 -69.89, 107.86 96.20 10/30/2025 16:33:29 -69.89, 107.88 96.21 1.30 65
4 11/02/2025 07:10:08 -70.07,-111.29 95.19 11/02/2025 07:10:57 -70.09,-111.22 95.18 3.09 49
5 11/02/2025 08:00:52 69.93, 56.23 84.69 11/02/2025 08:00:25 69.92, 56.19 84.67 1.78 27
6 11/02/2025 08:51:16 -68.90,-134.97 96.33 11/02/2025 08:50:10 -68.98,-137.43 96.26 98.72 66
7 11/04/2025 22:36:37 70.64,-163.76 86.21 11/04/2025 22:37:46 70.53,-162.31 86.10 55.04 69
8 11/04/2025 23:27:08 -69.98, 4.59 94.45 11/04/2025 23:27:24 -69.98, 4.53 94.45 2.50 16
9 11/05/2025 00:17:53 69.90, 172.03 85.49 11/05/2025 00:16:50 69.92, 172.09 85.51 3.56 63
10 11/07/2025 14:53:27 70.04, -47.06 86.40 11/07/2025 14:54:19 70.06, -47.09 86.42 2.53 52
11 11/07/2025 15:44:09 -69.96, 120.38 93.67 11/07/2025 15:43:49 -69.96, 120.39 93.68 0.84 20
12 11/07/2025 16:34:37 68.98, -70.89 85.36 11/07/2025 16:33:31 69.01, -73.23 85.39 93.32 66
13 11/10/2025 06:19:58 -70.89, -99.98 91.99 11/10/2025 06:21:05 -70.78, -97.78 92.10 81.37 67
14 11/10/2025 07:10:28 70.03, 68.71 87.16 11/10/2025 07:10:44 70.01, 68.73 87.13 2.81 16
15 11/10/2025 08:01:09 -69.90,-123.77 92.97 11/10/2025 08:00:14 -69.90,-123.78 92.97 0.80 55

Figure of NOAA-20 and LANDSAT-9 satellite orbits during SNOs since TLE Epoch: 10/29/2025
SNOs_Map_NOAA-20_LANDSAT-9_20251030.jpg

Download SNOs between NOAA-20 and LANDSAT-9 since TLE EPOCH: 10/29/2025 in txt file.

Historial Predications of SNOs between NOAA-20 and LANDSAT-9