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: 11/23/2023
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 11/25/2023 07:34:38 -70.02,-117.67 89.38 11/25/2023 07:35:50 -69.98,-117.61 89.42 5.04 72
2 11/25/2023 08:25:21 69.85, 49.88 90.47 11/25/2023 08:25:17 69.87, 49.89 90.48 2.08 4
3 11/25/2023 09:16:01 -69.65,-142.50 89.74 11/25/2023 09:14:48 -69.71,-142.71 89.68 10.32 73
4 11/27/2023 23:51:34 -69.95, -1.81 88.95 11/27/2023 23:52:21 -69.92, -1.82 88.98 3.21 47
5 11/28/2023 00:42:18 69.84, 165.66 90.96 11/28/2023 00:41:48 69.81, 165.68 90.93 3.32 30
6 11/30/2023 15:18:02 70.73, -54.59 92.31 11/30/2023 15:19:09 70.64, -52.52 92.20 76.89 67
7 11/30/2023 16:08:30 -69.89, 114.04 88.55 11/30/2023 16:08:51 -69.88, 114.01 88.56 1.96 21
8 11/30/2023 16:59:14 69.79, -78.49 91.36 11/30/2023 16:58:18 69.77, -78.50 91.34 2.17 56
9 12/03/2023 07:34:43 69.95, 62.40 91.92 12/03/2023 07:35:49 69.96, 62.37 91.93 1.36 66
10 12/03/2023 08:25:25 -69.85,-130.12 88.18 12/03/2023 08:25:19 -69.86,-130.14 88.18 1.26 6
11 12/03/2023 09:16:02 69.37, 37.88 91.35 12/03/2023 09:14:51 69.46, 36.97 91.44 36.95 71
12 12/05/2023 23:51:39 69.92, 178.21 92.25 12/05/2023 23:52:17 69.95, 178.24 92.27 3.25 38
13 12/06/2023 00:42:21 -69.81, -14.31 87.86 12/06/2023 00:41:48 -69.79, -14.34 87.88 2.54 33

Figure of NOAA-21 and LANDSAT-9 satellite orbits during SNOs since TLE Epoch: 11/23/2023
SNOs_Map_NOAA-21_LANDSAT-9_20231123.jpg

Download SNOs between NOAA-21 and LANDSAT-9 since TLE EPOCH: 11/23/2023 in txt file.

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