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: 11/8/2023
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 07:34:28 -70.34,-118.09 92.96 11/09/2023 07:35:39 -70.19,-117.28 93.11 34.52 71
2 11/09/2023 08:25:05 69.85, 49.96 86.57 11/09/2023 08:25:10 69.87, 49.91 86.58 2.50 5
3 11/09/2023 09:15:47 -69.76,-142.58 93.53 11/09/2023 09:14:40 -69.76,-142.61 93.53 1.02 67
4 11/11/2023 23:51:18 -69.95, -1.73 92.61 11/11/2023 23:52:12 -69.92, -1.78 92.63 3.25 54
5 11/12/2023 00:42:02 69.84, 165.74 87.30 11/12/2023 00:41:39 69.82, 165.72 87.28 2.44 23
6 11/12/2023 01:32:29 -68.94, -25.66 93.59 11/12/2023 01:31:22 -68.99, -27.75 93.55 83.37 67
7 11/14/2023 15:17:50 70.89, -54.79 89.06 11/14/2023 15:18:56 70.80, -52.24 88.97 93.41 66
8 11/14/2023 16:08:15 -69.89, 114.11 91.95 11/14/2023 16:08:41 -69.87, 114.03 91.97 3.66 26
9 11/14/2023 16:58:59 69.78, -78.42 87.96 11/14/2023 16:58:08 69.76, -78.47 87.93 3.29 51
10 11/17/2023 07:34:30 69.96, 62.45 88.79 11/17/2023 07:35:38 69.98, 62.44 88.81 2.08 68
11 11/17/2023 08:25:12 -69.85,-130.07 91.31 11/17/2023 08:25:08 -69.87,-130.07 91.29 2.06 4
12 11/17/2023 09:15:51 69.48, 37.78 88.33 11/17/2023 09:14:39 69.54, 37.11 88.38 26.52 72
13 11/19/2023 23:51:27 69.94, 178.24 89.41 11/19/2023 23:52:05 69.92, 178.25 89.39 2.49 38
14 11/20/2023 00:42:09 -69.83, -14.28 90.70 11/20/2023 00:41:35 -69.82, -14.26 90.72 2.09 34

Figure of NOAA-21 and LANDSAT-9 satellite orbits during SNOs since TLE Epoch: 11/8/2023
SNOs_Map_NOAA-21_LANDSAT-9_20231108.jpg

Download SNOs between NOAA-21 and LANDSAT-9 since TLE EPOCH: 11/08/2023 in txt file.

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