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: 1/2/2023
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 01/03/2023 23:02:08 -70.14, 10.85 87.14 01/03/2023 23:02:59 -70.12, 10.81 87.17 2.91 51
2 01/03/2023 23:52:52 70.02, 178.33 92.74 01/03/2023 23:52:26 70.01, 178.31 92.73 1.65 26
3 01/04/2023 00:43:17 -69.03, -12.92 88.29 01/04/2023 00:42:11 -69.08, -15.32 88.17 95.34 66
4 01/06/2023 14:28:38 71.13, -42.30 93.62 01/06/2023 14:29:43 71.04, -39.55 93.45 99.59 65
5 01/06/2023 15:19:02 -70.09, 126.69 87.48 01/06/2023 15:19:28 -70.12, 126.69 87.45 3.02 26
6 01/06/2023 16:09:46 69.98, -65.83 92.40 01/06/2023 16:08:56 69.95, -65.89 92.39 3.46 50
7 01/09/2023 06:45:16 70.25, 74.89 92.35 01/09/2023 06:46:27 70.20, 75.06 92.29 8.24 71
8 01/09/2023 07:35:56 -70.05,-117.49 87.86 01/09/2023 07:35:58 -70.04,-117.53 87.87 2.05 2
9 01/09/2023 08:26:38 69.83, 50.15 91.91 01/09/2023 08:25:26 69.87, 49.87 91.97 11.59 72
10 01/11/2023 23:02:08 70.16,-169.21 91.87 01/11/2023 23:02:55 70.15,-169.13 91.85 3.28 47
11 01/11/2023 23:52:49 -70.01, -1.67 88.30 01/11/2023 23:52:26 -69.99, -1.72 88.31 2.79 23
12 01/14/2023 15:19:01 70.08, -53.32 91.34 01/14/2023 15:19:24 70.08, -53.35 91.34 1.05 23
13 01/14/2023 16:09:43 -69.98, 114.14 88.77 01/14/2023 16:08:54 -69.98, 114.15 88.77 0.45 49

Figure of NOAA-21 and LANDSAT-9 satellite orbits during SNOs since TLE Epoch: 1/2/2023
SNOs_Map_NOAA-21_LANDSAT-9_20230102.jpg

Download SNOs between NOAA-21 and LANDSAT-9 since TLE EPOCH: 01/02/2023 in txt file.

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