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: 9/6/2023
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 09/06/2023 07:34:11 -70.81,-118.69 115.72 09/06/2023 07:35:18 -70.72,-116.50 115.87 80.98 67
2 09/06/2023 08:24:41 69.95, 49.98 63.40 09/06/2023 08:24:57 69.96, 50.04 63.41 2.83 16
3 09/06/2023 09:15:22 -69.82,-142.51 116.72 09/06/2023 09:14:27 -69.85,-142.48 116.69 3.37 55
4 09/08/2023 23:50:52 -70.02, -1.66 115.55 09/08/2023 23:52:02 -70.04, -1.62 115.54 2.59 70
5 09/09/2023 00:41:36 69.89, 165.84 64.34 09/09/2023 00:41:30 69.88, 165.80 64.32 1.82 6
6 09/09/2023 01:32:15 -69.65, -26.49 115.90 09/09/2023 01:31:02 -69.66, -26.87 115.88 14.58 73
7 09/11/2023 16:07:47 -69.96, 114.19 114.60 09/11/2023 16:08:35 -69.96, 114.14 114.61 2.03 48
8 09/11/2023 16:58:31 69.84, -78.32 65.29 09/11/2023 16:58:02 69.85, -78.37 65.30 2.25 29
9 09/14/2023 07:34:17 70.89, 61.15 67.38 09/14/2023 07:35:23 70.80, 63.61 67.23 90.40 66
10 09/14/2023 08:24:42 -69.91,-129.98 113.63 09/14/2023 08:25:07 -69.93,-130.03 113.62 2.58 25
11 09/14/2023 09:15:27 69.84, 37.43 66.32 09/14/2023 09:14:34 69.82, 37.46 66.29 3.18 53
12 09/16/2023 23:50:56 70.07, 178.24 67.55 09/16/2023 23:52:07 70.05, 178.39 67.52 6.02 71
13 09/17/2023 00:41:37 -69.93, -14.23 112.59 09/17/2023 00:41:38 -69.90, -14.19 112.62 3.16 1
14 09/17/2023 01:32:19 69.70, 153.41 67.20 09/17/2023 01:31:06 69.73, 153.22 67.23 8.14 73
15 09/19/2023 16:07:50 69.99, -65.87 68.49 09/19/2023 16:08:40 69.97, -65.86 68.47 2.06 50
16 09/19/2023 16:58:32 -69.89, 101.58 111.59 09/19/2023 16:58:10 -69.87, 101.64 111.62 3.26 22

Figure of NOAA-21 and LANDSAT-9 satellite orbits during SNOs since TLE Epoch: 9/6/2023
SNOs_Map_NOAA-21_LANDSAT-9_20230906.jpg

Download SNOs between NOAA-21 and LANDSAT-9 since TLE EPOCH: 09/06/2023 in txt file.

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