Simultaneous Nadir Overpasses (SNOs) Predictions

Prediction of SNOs between NOAA-21 and LANDSAT-9 Satellite Orbit:

Table of predicted SNOs for the next 14.0 days since TLE Epoch: 11/5/2023
Index Date (NOAA-21) Time (NOAA-21) Lat,Lon (NOAA-21) SZA (NOAA-21 ) Date (LANDSAT-9) Time (LANDSAT-9) Lat,Lon (LANDSAT-9) SZA (LANDSAT-9 ) Distance(km) Time Diff (sec)
1 11/06/2023 16:08:08 69.94, -65.93 85.87 11/06/2023 16:08:39 69.93, -65.88 85.86 2.04 31
2 11/06/2023 16:58:49 -69.79, 101.61 94.28 11/06/2023 16:58:09 -69.82, 101.60 94.25 3.10 40
3 11/09/2023 07:34:28 -70.32,-118.07 92.98 11/09/2023 07:35:39 -70.22,-117.24 93.08 33.20 71
4 11/09/2023 08:25:06 69.90, 49.89 86.61 11/09/2023 08:25:10 69.89, 49.94 86.60 1.93 4
5 11/09/2023 09:15:48 -69.80,-142.64 93.49 11/09/2023 09:14:40 -69.79,-142.57 93.50 2.87 68
6 11/11/2023 23:51:19 -69.97, -1.77 92.58 11/11/2023 23:52:12 -69.98, -1.71 92.58 2.54 53
7 11/12/2023 00:42:02 69.81, 165.78 87.27 11/12/2023 00:41:40 69.81, 165.71 87.27 2.61 22
8 11/12/2023 01:32:30 -68.97, -25.70 93.57 11/12/2023 01:31:22 -69.04, -27.68 93.49 79.47 68
9 11/14/2023 15:17:52 70.95, -54.89 89.12 11/14/2023 15:18:57 70.83, -52.20 88.99 98.83 65
10 11/14/2023 16:08:16 -69.90, 114.10 91.94 11/14/2023 16:08:42 -69.90, 114.07 91.94 1.14 26
11 11/14/2023 16:59:00 69.79, -78.44 87.97 11/14/2023 16:58:09 69.79, -78.44 87.96 0.19 51
12 11/17/2023 07:34:32 70.00, 62.39 88.83 11/17/2023 07:35:40 70.00, 62.46 88.83 2.62 68
13 11/17/2023 08:25:14 -69.89,-130.13 91.28 11/17/2023 08:25:10 -69.89,-130.05 91.27 2.98 4
14 11/17/2023 09:15:53 69.52, 37.72 88.37 11/17/2023 09:14:41 69.56, 37.13 88.40 23.23 72

Figure of NOAA-21 and LANDSAT-9 satellite orbits during SNOs since TLE Epoch: 11/5/2023
SNOs_Map_NOAA-21_LANDSAT-9_20231105.jpg

Download SNOs between NOAA-21 and LANDSAT-9 since TLE EPOCH: 11/05/2023 in txt file.

Historial Predications of SNOs between NOAA-21 and LANDSAT-9