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: 9/23/2023
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 09/24/2023 23:50:53 -69.98, -1.64 109.45 09/24/2023 23:52:02 -69.99, -1.68 109.45 1.39 69
2 09/25/2023 00:41:37 69.86, 165.86 70.44 09/25/2023 00:41:29 69.88, 165.82 70.46 2.76 8
3 09/25/2023 01:32:14 -69.51, -26.32 109.90 09/25/2023 01:31:02 -69.60, -26.93 109.80 25.51 72
4 09/27/2023 16:07:47 -69.94, 114.20 108.46 09/27/2023 16:08:29 -69.97, 114.19 108.43 3.49 42
5 09/27/2023 16:58:32 69.87, -78.39 71.49 09/27/2023 16:57:56 69.86, -78.32 71.48 3.07 36
6 09/30/2023 07:34:09 70.52, 61.75 73.17 09/30/2023 07:35:19 70.41, 63.09 73.04 51.26 70
7 09/30/2023 08:24:41 -69.90,-129.98 107.45 09/30/2023 08:24:56 -69.92,-129.98 107.44 1.42 15
8 09/30/2023 09:15:25 69.79, 37.50 72.45 09/30/2023 09:14:23 69.80, 37.50 72.46 1.92 62
9 10/02/2023 23:50:53 69.97, 178.37 73.65 10/02/2023 23:51:52 69.98, 178.38 73.65 1.39 59
10 10/03/2023 00:41:35 -69.88, -14.18 106.44 10/03/2023 00:41:22 -69.88, -14.14 106.44 1.53 13
11 10/03/2023 01:32:08 69.18, 154.15 72.87 10/03/2023 01:30:59 69.21, 152.60 72.91 60.99 69
12 10/05/2023 16:07:45 69.91, -65.77 74.62 10/05/2023 16:08:17 69.91, -65.83 74.61 2.52 32
13 10/05/2023 16:58:27 -69.82, 101.69 105.47 10/05/2023 16:57:47 -69.81, 101.66 105.48 1.76 40

Figure of NOAA-21 and LANDSAT-9 satellite orbits during SNOs since TLE Epoch: 9/23/2023
SNOs_Map_NOAA-21_LANDSAT-9_20230923.jpg

Download SNOs between NOAA-21 and LANDSAT-9 since TLE EPOCH: 09/23/2023 in txt file.

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