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: 12/9/2023
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 12/11/2023 07:34:45 -69.96,-117.62 87.16 12/11/2023 07:35:48 -69.98,-117.59 87.14 2.86 63
2 12/11/2023 08:25:29 69.85, 49.86 92.74 12/11/2023 08:25:16 69.83, 49.83 92.71 2.63 13
3 12/11/2023 09:16:03 -69.33,-142.07 87.79 12/11/2023 09:14:52 -69.39,-143.13 87.72 42.18 71
4 12/13/2023 23:51:40 -69.91, -1.77 87.01 12/13/2023 23:52:20 -69.93, -1.79 86.99 3.05 40
5 12/14/2023 00:42:24 69.80, 165.70 92.89 12/14/2023 00:41:47 69.83, 165.70 92.92 3.37 37
6 12/16/2023 15:18:03 70.54, -54.30 93.79 12/16/2023 15:19:12 70.46, -52.79 93.69 56.68 69
7 12/16/2023 16:08:35 -69.91, 113.99 86.86 12/16/2023 16:08:50 -69.92, 114.06 86.85 2.86 15
8 12/16/2023 16:59:18 69.75, -78.46 92.99 12/16/2023 16:58:18 69.75, -78.52 92.99 2.41 60
9 12/19/2023 07:34:48 69.97, 62.35 93.30 12/19/2023 07:35:51 69.99, 62.40 93.31 2.52 63
10 12/19/2023 08:25:30 -69.87,-130.18 86.81 12/19/2023 08:25:21 -69.89,-130.11 86.79 3.19 9
11 12/19/2023 09:16:06 69.34, 37.91 92.66 12/19/2023 09:14:55 69.39, 36.86 92.72 41.47 71
12 12/21/2023 23:51:43 69.94, 178.17 93.30 12/21/2023 23:52:22 69.94, 178.20 93.30 1.20 39
13 12/22/2023 00:42:25 -69.84, -14.36 86.80 12/22/2023 00:41:52 -69.84, -14.30 86.81 2.12 33

Figure of NOAA-21 and LANDSAT-9 satellite orbits during SNOs since TLE Epoch: 12/9/2023
SNOs_Map_NOAA-21_LANDSAT-9_20231210.jpg

Download SNOs between NOAA-21 and LANDSAT-9 since TLE EPOCH: 12/09/2023 in txt file.

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