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: 11/7/2023
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 11/09/2023 07:34:27 -70.31,-118.04 93.00 11/09/2023 07:35:38 -70.22,-117.24 93.08 31.73 71
2 11/09/2023 08:25:05 69.88, 49.92 86.59 11/09/2023 08:25:09 69.89, 49.95 86.60 2.17 4
3 11/09/2023 09:15:47 -69.78,-142.62 93.50 11/09/2023 09:14:39 -69.78,-142.57 93.50 1.68 68
4 11/11/2023 23:51:18 -69.92, -1.69 92.63 11/11/2023 23:52:12 -69.93, -1.77 92.62 2.92 54
5 11/12/2023 00:42:02 69.81, 165.78 87.27 11/12/2023 00:41:39 69.82, 165.73 87.28 2.26 23
6 11/12/2023 01:32:30 -68.97, -25.70 93.56 11/12/2023 01:31:22 -69.00, -27.74 93.54 81.29 68
7 11/14/2023 15:17:50 70.87, -54.75 89.04 11/14/2023 15:18:56 70.78, -52.26 88.95 91.38 66
8 11/14/2023 16:08:16 -69.92, 114.06 91.92 11/14/2023 16:08:40 -69.91, 114.09 91.93 2.13 24
9 11/14/2023 16:59:00 69.82, -78.47 87.99 11/14/2023 16:58:07 69.79, -78.42 87.97 3.18 53
10 11/17/2023 07:34:30 70.00, 62.39 88.83 11/17/2023 07:35:36 69.98, 62.45 88.81 3.27 66
11 11/17/2023 08:25:12 -69.89,-130.13 91.27 11/17/2023 08:25:06 -69.87,-130.06 91.29 3.36 6
12 11/17/2023 09:15:49 69.42, 37.87 88.27 11/17/2023 09:14:38 69.48, 37.05 88.33 33.01 71
13 11/19/2023 23:51:26 69.94, 178.24 89.41 11/19/2023 23:52:02 69.93, 178.28 89.40 1.60 36
14 11/20/2023 00:42:08 -69.83, -14.27 90.70 11/20/2023 00:41:32 -69.83, -14.23 90.70 1.79 36

Figure of NOAA-21 and LANDSAT-9 satellite orbits during SNOs since TLE Epoch: 11/7/2023
SNOs_Map_NOAA-21_LANDSAT-9_20231107.jpg

Download SNOs between NOAA-21 and LANDSAT-9 since TLE EPOCH: 11/07/2023 in txt file.

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