Simultaneous Nadir Overpasses (SNOs) Predictions

Prediction of SNOs between NOAA-21 and LANDSAT-8 Satellite Orbit:

Table of predicted SNOs for the next 14.0 days since TLE Epoch: 4/9/2023
Index Date (NOAA-21) Time (NOAA-21) Lat,Lon (NOAA-21) SZA (NOAA-21 ) Date (LANDSAT-8) Time (LANDSAT-8) Lat,Lon (LANDSAT-8) SZA (LANDSAT-8 ) Distance(km) Time Diff (sec)
1 04/11/2023 07:09:34 -70.13,-111.28 118.17 04/11/2023 07:10:19 -70.11,-111.30 118.20 2.61 45
2 04/11/2023 08:00:18 70.02, 56.20 61.70 04/11/2023 07:59:46 70.00, 56.20 61.69 1.59 32
3 04/13/2023 22:35:55 70.87,-163.99 61.63 04/13/2023 22:37:03 70.78,-162.05 61.49 71.35 68
4 04/13/2023 23:26:24 -70.09, 4.56 119.19 04/13/2023 23:26:43 -70.12, 4.61 119.18 3.06 19
5 04/14/2023 00:17:08 69.98, 172.04 60.68 04/14/2023 00:16:11 69.95, 172.02 60.66 3.47 57
6 04/16/2023 14:52:32 70.16, -47.07 59.93 04/16/2023 14:53:38 70.15, -47.08 59.91 0.90 66
7 04/16/2023 15:43:14 -70.07, 120.39 120.18 04/16/2023 15:43:08 -70.04, 120.40 120.21 3.00 6
8 04/16/2023 16:33:51 69.59, -71.59 59.31 04/16/2023 16:32:40 69.65, -72.50 59.41 35.78 71
9 04/19/2023 07:09:20 70.09, 68.82 58.92 04/19/2023 07:10:01 70.10, 68.74 58.92 2.94 41
10 04/19/2023 08:00:02 -70.00,-123.72 121.19 04/19/2023 07:59:31 -69.99,-123.78 121.20 2.37 31
11 04/21/2023 22:35:39 -70.87, 16.05 121.18 04/21/2023 22:36:47 -70.74, 17.93 121.37 70.18 68
12 04/21/2023 23:26:10 70.09,-175.39 58.00 04/21/2023 23:26:24 70.07,-175.40 57.97 2.20 14
13 04/22/2023 00:16:52 -69.99, -7.93 122.12 04/22/2023 00:15:54 -69.97, -7.92 122.15 3.28 58

Figure of NOAA-21 and LANDSAT-8 satellite orbits during SNOs since TLE Epoch: 4/9/2023
SNOs_Map_NOAA-21_LANDSAT-8_20230409.jpg

Download SNOs between NOAA-21 and LANDSAT-8 since TLE EPOCH: 04/09/2023 in txt file.

Historial Predications of SNOs between NOAA-21 and LANDSAT-8