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: 8/12/2023
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 08/13/2023 07:33:59 70.48, 61.92 55.78 08/13/2023 07:35:09 70.40, 63.06 55.65 43.18 70
2 08/13/2023 08:24:33 -69.97,-129.98 124.75 08/13/2023 08:24:45 -69.95,-129.96 124.77 1.88 12
3 08/13/2023 09:15:17 69.85, 37.50 55.14 08/13/2023 09:14:12 69.85, 37.55 55.15 1.90 65
4 08/15/2023 23:50:42 70.03, 178.39 56.13 08/15/2023 23:51:45 70.00, 178.37 56.09 3.36 63
5 08/16/2023 00:41:24 -69.94, -14.16 123.96 08/16/2023 00:41:14 -69.94, -14.08 123.96 2.85 10
6 08/16/2023 01:31:59 69.35, 154.01 55.44 08/16/2023 01:30:49 69.40, 152.82 55.54 47.13 70
7 08/18/2023 16:07:32 69.96, -65.72 56.91 08/18/2023 16:08:14 69.97, -65.80 56.90 2.77 42
8 08/18/2023 16:58:14 -69.87, 101.73 123.18 08/18/2023 16:57:44 -69.85, 101.68 123.19 2.76 30
9 08/21/2023 07:33:54 -70.90,-118.73 121.25 08/21/2023 07:35:01 -70.78,-116.36 121.45 87.83 67
10 08/21/2023 08:24:22 69.96, 50.07 57.77 08/21/2023 08:24:41 69.96, 50.09 57.77 0.77 19
11 08/21/2023 09:15:04 -69.86,-142.47 122.32 08/21/2023 09:14:11 -69.85,-142.43 122.32 1.87 53
12 08/23/2023 23:50:30 -70.11, -1.69 121.19 08/23/2023 23:51:41 -70.10, -1.47 121.21 8.34 71
13 08/24/2023 00:41:12 69.90, 165.94 58.61 08/24/2023 00:41:09 69.93, 165.94 58.64 3.48 3
14 08/24/2023 01:31:53 -69.75, -26.52 121.54 08/24/2023 01:30:40 -69.77, -26.65 121.50 5.35 73

Figure of NOAA-21 and LANDSAT-9 satellite orbits during SNOs since TLE Epoch: 8/12/2023
SNOs_Map_NOAA-21_LANDSAT-9_20230812.jpg

Download SNOs between NOAA-21 and LANDSAT-9 since TLE EPOCH: 08/12/2023 in txt file.

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