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: 9/30/2023
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 09/30/2023 07:34:13 70.73, 61.40 73.39 09/30/2023 07:35:21 70.62, 63.37 73.25 73.61 68
2 09/30/2023 08:24:41 -69.92,-130.00 107.44 09/30/2023 08:25:02 -69.91,-130.03 107.45 1.54 21
3 09/30/2023 09:15:25 69.79, 37.50 72.45 09/30/2023 09:14:29 69.80, 37.47 72.46 1.63 56
4 10/02/2023 23:50:53 69.98, 178.36 73.65 10/02/2023 23:52:04 70.01, 178.35 73.68 3.05 71
5 10/03/2023 00:41:35 -69.90, -14.20 106.42 10/03/2023 00:41:34 -69.90, -14.16 106.42 1.35 1
6 10/03/2023 01:32:16 69.61, 153.53 73.31 10/03/2023 01:31:03 69.68, 153.18 73.38 15.54 73
7 10/05/2023 16:07:47 69.97, -65.86 74.68 10/05/2023 16:08:36 69.96, -65.84 74.66 1.57 49
8 10/05/2023 16:58:28 -69.83, 101.67 105.46 10/05/2023 16:58:06 -69.86, 101.65 105.43 2.81 22
9 10/05/2023 17:48:55 68.81, -89.57 73.53 10/05/2023 17:47:49 68.86, -92.03 73.60 99.08 66
10 10/08/2023 08:24:39 69.92, 49.99 75.65 10/08/2023 08:25:06 69.93, 49.99 75.66 0.54 27
11 10/08/2023 09:15:21 -69.83,-142.56 104.43 10/08/2023 09:14:36 -69.83,-142.51 104.44 1.67 45
12 10/10/2023 23:50:54 -70.31, -2.14 102.96 10/10/2023 23:52:06 -70.20, -1.39 103.08 30.71 72
13 10/11/2023 00:41:32 69.89, 165.82 76.63 10/11/2023 00:41:37 69.86, 165.78 76.60 3.39 5
14 10/11/2023 01:32:14 -69.79, -26.72 103.46 10/11/2023 01:31:07 -69.76, -26.73 103.49 3.35 67
15 10/13/2023 16:07:41 -69.96, 114.17 102.30 10/13/2023 16:08:39 -69.98, 114.18 102.29 1.95 58
16 10/13/2023 16:58:25 69.86, -78.36 77.61 10/13/2023 16:58:06 69.86, -78.34 77.61 1.15 19
17 10/13/2023 17:48:56 -69.18, 89.94 103.07 10/13/2023 17:47:46 -69.22, 88.42 103.03 60.03 70

Figure of NOAA-21 and LANDSAT-9 satellite orbits during SNOs since TLE Epoch: 9/30/2023
SNOs_Map_NOAA-21_LANDSAT-9_20230930.jpg

Download SNOs between NOAA-21 and LANDSAT-9 since TLE EPOCH: 09/30/2023 in txt file.

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