Simultaneous Nadir Overpasses (SNOs) Predictions

Prediction of SNOs between NOAA-20 and LANDSAT-9 Satellite Orbit:

Table of predicted SNOs for the next 14.0 days since TLE Epoch: 7/19/2023
Index Date (NOAA-20) Time (NOAA-20) Lat,Lon (NOAA-20) SZA (NOAA-20 ) Date (LANDSAT-9) Time (LANDSAT-9) Lat,Lon (LANDSAT-9) SZA (LANDSAT-9 ) Distance(km) Time Diff (sec)
1 07/20/2023 21:34:23 70.26,-147.30 49.68 07/20/2023 21:35:32 70.26,-147.28 49.66 0.53 69
2 07/20/2023 22:25:05 -70.16, 20.17 130.42 07/20/2023 22:25:02 -70.14, 20.18 130.45 2.53 3
3 07/20/2023 23:15:44 69.78,-171.96 49.19 07/20/2023 23:14:32 69.87,-172.55 49.31 24.75 72
4 07/23/2023 13:51:18 70.23, -31.49 50.17 07/23/2023 13:52:01 70.21, -31.46 50.15 1.84 43
5 07/23/2023 14:42:00 -70.13, 135.98 129.93 07/23/2023 14:41:31 -70.10, 136.01 129.96 3.34 29
6 07/26/2023 05:17:43 -71.03, -84.34 128.41 07/26/2023 05:18:50 -70.95, -82.10 128.59 81.59 67
7 07/26/2023 06:08:12 70.15, 84.40 50.66 07/26/2023 06:08:30 70.14, 84.33 50.65 2.81 18
8 07/26/2023 06:58:54 -70.04,-108.13 129.45 07/26/2023 06:58:00 -70.03,-108.20 129.45 3.13 54
9 07/28/2023 21:34:22 -70.23, 32.73 128.66 07/28/2023 21:35:30 -70.21, 32.67 128.69 3.20 68
10 07/28/2023 22:25:06 70.13,-159.80 51.25 07/28/2023 22:24:56 70.15,-159.76 51.27 3.23 10
11 07/28/2023 23:15:43 -69.76, 8.07 129.14 07/28/2023 23:14:31 -69.77, 7.33 129.09 28.33 72
12 07/31/2023 13:51:17 -70.21, 148.53 128.04 07/31/2023 13:51:57 -70.19, 148.55 128.06 1.73 40
13 07/31/2023 14:42:00 70.06, -43.94 51.82 07/31/2023 14:41:24 70.08, -43.96 51.85 2.78 36

Figure of NOAA-20 and LANDSAT-9 satellite orbits during SNOs since TLE Epoch: 7/19/2023
SNOs_Map_NOAA-20_LANDSAT-9_20230719.jpg

Download SNOs between NOAA-20 and LANDSAT-9 since TLE EPOCH: 07/19/2023 in txt file.

Historial Predications of SNOs between NOAA-20 and LANDSAT-9